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    pfsense VM disk becomes full - please help identify the culprit?

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    • S
      sloopbun
      last edited by sloopbun

      Hello,

      I have pfsense CE 2.7.2-RELEASE in a proxmox VM. Generally works well compared to bare metal I had before. The only difference is that on bare-metal I configured root-zfs for pfsense, but in this virtualised environment, I use UFS for boot, because proxmox use zfs and zvol for the VM.

      The problem I am facing is that over a couple of weeks, the pfsense disk fills up until services like dns stop because no more writing is possible. I can check with df and it shows 102% disk usage.

      When I check with du looking for the cause, it shows only 13G used.

      Rebooting the proxmox machine resolves the issue temporarily.

      I have tried everything but unable to identify what is consuming the space.

      Can anyone help me please?

      After a reboot, temporarily resolving the issue, this is what I have. Note that the df result is different, but the du result is unchanged:

      [2.7.2-RELEASE][root@pfSense.spacelab]/root: df -h /
      Filesystem                     Size    Used   Avail Capacity  Mounted on
      /dev/ufsid/659ec5d8d33f9720    120G     13G     97G    12%    /
      
      [2.7.2-RELEASE][root@pfSense.spacelab]/root: du -h -d 1 /
      4.0K	/.snap
      101M	/boot
      4.5K	/dev
       16M	/rescue
      4.0K	/proc
       48M	/root
       10G	/var
      4.0K	/media
       12K	/conf.default
      4.0K	/mnt
      1.6M	/tmp
      4.6M	/sbin
       17M	/lib
      4.0K	/net
       15M	/cf
      164K	/libexec
      8.0M	/etc
      1.4M	/bin
      2.0G	/usr
       20K	/home
      1.1M	/tftpboot
       13G	/
      
      [2.7.2-RELEASE][root@pfSense.spacelab]/root: mount
      /dev/ufsid/659ec5d8d33f9720 on / (ufs, local, noatime, soft-updates, journaled soft-updates)
      devfs on /dev (devfs)
      /dev/vtbd0p1 on /boot/efi (msdosfs, local)
      tmpfs on /var/run (tmpfs, local)
      
      root@pvepbs:~# cat /etc/pve/qemu-server/100.conf
      balloon: 0
      bios: ovmf
      boot: order=ide2;virtio0
      cores: 6
      cpu: host,flags=+aes
      efidisk0: local-zfs:vm-100-disk-0,efitype=4m,pre-enrolled-keys=1,size=1M
      hostpci0: 0000:01:00,pcie=1
      hostpci1: 0000:03:00,pcie=1
      ide2: none,media=cdrom
      machine: q35
      memory: 16384
      meta: creation-qemu=8.1.2,ctime=1704716297
      name: pfsense
      numa: 0
      onboot: 1
      ostype: other
      scsihw: virtio-scsi-single
      serial0: socket
      smbios1: uuid=dd5d2b62-e3a4-4da9-b796-e8c97bfb8358
      sockets: 1
      vga: qxl
      virtio0: local-zfs:vm-100-disk-1,discard=on,iothread=1,size=128G
      vmgenid: babe5976-8e38-42cb-9d4b-4f14f6e2cdfa
      

      gstat:

      dT: 1.010s  w: 1.000s
       L(q)  ops/s    r/s   kBps   ms/r    w/s   kBps   ms/w   %busy Name
          0      6      0      0    0.0      6   1023    0.4    0.1| vtbd0
          0      0      0      0    0.0      0      0    0.0    0.0| vtbd0p1
          0      5      0      0    0.0      5   1023    0.3    0.1| vtbd0p2
          0      0      0      0    0.0      0      0    0.0    0.0| vtbd0p3
          0      5      0      0    0.0      5   1023    0.3    0.1| ufsid/659ec5d8d33f9720
          0      0      0      0    0.0      0      0    0.0    0.0| label/swap0
          0      0      0      0    0.0      0      0    0.0    0.0| cd0
      

      systat -vmstat:

          2 users    Load  0.88  0.66  0.50                  Feb 10 12:56:58
         Mem usage:  17%Phy  2%Kmem                           VN PAGER   SWAP PAGER
      Mem:      REAL           VIRTUAL                        in   out     in   out
             Tot   Share     Tot    Share     Free   count          28
      Act  1414M    106M    521G     151M   13076M   pages     3    28
      All  1423M    114M    521G     241M                       ioflt  Interrupts
      Proc:                                                 186 cow   32032 total
        r   p   d    s   w   Csw  Trp  Sys  Int  Sof  Flt   958 zfod        atkbd0 1
        1          235       73K   1K  15K  30K  12K   1K       ozfod   270 cpu0:timer
                                                               %ozfod   320 cpu1:timer
       3.0%Sys   2.5%Intr  1.4%User  0.0%Nice 93.1%Idle         daefr   362 cpu2:timer
      |    |    |    |    |    |    |    |    |    |    |   280 prcfr   283 cpu3:timer
      =++                                                   541 totfr   279 cpu4:timer
                                             192 dtbuf          react   280 cpu5:timer
      Namei     Name-cache   Dir-cache    348426 maxvn          pdwak  6559 igc0:rxq0
         Calls    hits   %    hits   %     68769 numvn      319 pdpgs    91 igc0:rxq1
          6778    6778 100                 55062 frevn          intrn  7885 igc0:rxq2
                                                          1197M wire    118 igc0:rxq3
      Disks vtbd0   cd0 pass0                              771M act         igc0:aq 29
      KB/t  89.07  0.00  0.00                              767M inact    83 igc1:rxq0
      tps       3     0     0                                 0 laund  8450 igc1:rxq1
      MB/s   0.24  0.00  0.00                               13G free    118 igc1:rxq2
      %busy     0     0     0                              730M buf    6924 igc1:rxq3
                                                                            igc1:aq 34
                                                                            virtio_pci
                                                                          3 virtio_pci
                                                                          7 ahci0 39
      
      S S 2 Replies Last reply Reply Quote 0
      • S
        SteveITS Galactic Empire @sloopbun
        last edited by

        @sloopbun Did you try an fsck? https://docs.netgate.com/pfsense/en/latest/troubleshooting/filesystem-check.html

        Pre-2.7.2/23.09: Only install packages for your version, or risk breaking it. Select your branch in System/Update/Update Settings.
        When upgrading, allow 10-15 minutes to restart, or more depending on packages and device speed.
        Upvote 👍 helpful posts!

        S 1 Reply Last reply Reply Quote 0
        • S
          sloopbun @SteveITS
          last edited by

          @SteveITS said in pfsense VM disk becomes full - please help identify the culprit?:

          @sloopbun Did you try an fsck? https://docs.netgate.com/pfsense/en/latest/troubleshooting/filesystem-check.html

          Thanks for the suggestion. I had not done so. I just did the reboot with disk check from the gui.

          Since I had posted, my disk usage had gone from 13G to 19G.

          After the reboot with disk check, it is back to the 13G. Will see how it increases in the next day.

          P 1 Reply Last reply Reply Quote 0
          • provelsP
            provels
            last edited by provels

            Disk space in the host server isn't overcommitted, is it? For instance, in VMWare one can assign 2TB to each each of 2 VMs residing on a 3TB host disk and eventually someone will lose out.
            Just spitballin'.

            Peder

            MAIN - pfSense+ 24.11-RELEASE - Adlink MXE-5401, i7, 16 GB RAM, 64 GB SSD. 500 GB HDD for SyslogNG
            BACKUP - pfSense+ 23.01-RELEASE - Hyper-V Virtual Machine, Gen 1, 2 v-CPUs, 3 GB RAM, 8GB VHDX (Dynamic)

            S 1 Reply Last reply Reply Quote 0
            • S
              sloopbun @provels
              last edited by

              @provels
              Since doing the reboot with filesystem check, my disk usage has jumped from 13G to 21G.

              [2.7.2-RELEASE][root@pfSense.spacelab]/root: df -hi
              Filesystem                     Size    Used   Avail Capacity iused ifree %iused  Mounted on
              /dev/ufsid/659ec5d8d33f9720    120G     22G     89G    20%     64k   16M    0%   /
              devfs                          1.0K      0B    1.0K     0%       0     0     -   /dev
              /dev/vtbd0p1                   260M    1.3M    259M     1%       2   510    0%   /boot/efi
              tmpfs                          4.0M    192K    3.8M     5%      56   14k    0%   /var/run
              
              [2.7.2-RELEASE][root@pfSense.spacelab]/root: du -h -d 1 /
              4.0K	/.snap
              101M	/boot
              4.5K	/dev
               16M	/rescue
              4.0K	/proc
               96M	/root
               10G	/var
              4.0K	/media
               12K	/conf.default
              4.0K	/mnt
              1.1M	/tmp
              4.6M	/sbin
               17M	/lib
              4.0K	/net
               15M	/cf
              164K	/libexec
              8.0M	/etc
              1.4M	/bin
              1.8G	/usr
               20K	/home
              1.1M	/tftpboot
               13G	/
              

              Host storage looks normal to me:

              root@pvepbs:~# zfs list
              NAME                       USED  AVAIL  REFER  MOUNTPOINT
              rpool                     41.2G   680G   104K  /rpool
              rpool/ROOT                2.46G   680G    96K  /rpool/ROOT
              rpool/ROOT/pve-1          2.46G   680G  2.46G  /
              rpool/data                33.5G   680G    96K  /rpool/data
              rpool/data/vm-100-disk-0    80K   680G    80K  -
              rpool/data/vm-100-disk-1  33.5G   680G  33.5G  -
              rpool/pbs_datastore         96K   600G    96K  /rpool/pbs_datastore
              rpool/var-lib-vz          5.06G   680G  5.06G  /var/lib/vz
              
              GertjanG 1 Reply Last reply Reply Quote 0
              • GertjanG
                Gertjan @sloopbun
                last edited by

                @sloopbun

                What pfSense packages are you using ?

                Have a look, at the /var/log/ folder, and all the /var/log/ sub folders.
                There are packages that log 'network' activity. If you have a lot of network activity, log files can grow to very fast, within a day, to several Gbytes. The solution would be : stop using the tools that log a lot, or don't have them log anymore.

                You /var/ :

                10G	/var
                

                I bet these 10G are mostly in /var/log/

                [23.09.1-RELEASE][root@pfSense.bhf.tld]/root: df -hi
                Filesystem                         Size    Used   Avail Capacity iused ifree %iused  Mounted on
                ......
                pfSense/var/log                     94G     86M     94G     0%     116  197M    0%   /var/log
                ......
                

                No "help me" PM's please. Use the forum, the community will thank you.
                Edit : and where are the logs ??

                S 1 Reply Last reply Reply Quote 0
                • S
                  serbus @sloopbun
                  last edited by

                  @sloopbun

                  Hello!

                  I have seen something similar (?) when running a sparse guest fs on top of a thin-provisioned host fs.
                  I dont run zfs/zvol on proxmox, so I dont know if this applies.

                  https://forum.netgate.com/topic/166274/pfsense-hyper-v-vhdx-growing-like-crazy

                  John

                  Lex parsimoniae

                  1 Reply Last reply Reply Quote 0
                  • S
                    sloopbun @Gertjan
                    last edited by

                    @Gertjan said in pfsense VM disk becomes full - please help identify the culprit?:

                    @sloopbun

                    What pfSense packages are you using ?

                    Have a look, at the /var/log/ folder, and all the /var/log/ sub folders.
                    There are packages that log 'network' activity. If you have a lot of network activity, log files can grow to very fast, within a day, to several Gbytes. The solution would be : stop using the tools that log a lot, or don't have them log anymore.

                    You /var/ :

                    10G	/var
                    

                    I bet these 10G are mostly in /var/log/

                    [23.09.1-RELEASE][root@pfSense.bhf.tld]/root: df -hi
                    Filesystem                         Size    Used   Avail Capacity iused ifree %iused  Mounted on
                    ......
                    pfSense/var/log                     94G     86M     94G     0%     116  197M    0%   /var/log
                    ......
                    

                    Here are my packages, there is some logging, and I have deleted a bunch just to free up space, but the reported size of the /var/ directory does not balloon, just the lack of available space reported by df.

                    Screenshot 2024-02-12 at 19.40.44.png

                    @serbus said in pfsense VM disk becomes full - please help identify the culprit?:

                    @sloopbun

                    Hello!

                    I have seen something similar (?) when running a sparse guest fs on top of a thin-provisioned host fs.
                    I dont run zfs/zvol on proxmox, so I dont know if this applies.

                    https://forum.netgate.com/topic/166274/pfsense-hyper-v-vhdx-growing-like-crazy

                    John

                    This is much more along the lines of what I have in mine. In proxmox, with zvol, there is a setting for "discard" which I have enabled.

                    I note that the last reply on that thread was:

                    @LesserBloops said in PfSense Hyper-V .vhdx growing like crazy:

                    I hit this when I tried using ZFS as the file system with expanding disks. It went runaway and eventually caused an outage.

                    I've been meaning to go back and try again with a fixed size disk instead of an expanding one, but haven't got around to it yet, and EXT seems to be fine...

                    There are some parameters that I am not confident in the effects of such as volmode and reservation which I am hesitant to mess with with a recommendation to do so. I not that some parameters like logicalused and volsize represent the size of the disk that pfsense sees.

                    I don't think this would seem to explain why the available space shown by df / progressively grows over time, without any file usage, but I would be happy to take advice on resolving this.

                    The odd thing to me is that I thought this was a fairly standard practice, as explained in the docs here: https://docs.netgate.com/pfsense/en/latest/recipes/virtualize-proxmox-ve.html

                    The fact that this is not a common issue points to it being a configuration issue on my behalf, right?

                    root@pvepbs:~# zfs get all rpool/data/vm-100-disk-1
                    NAME                      PROPERTY              VALUE                     SOURCE
                    rpool/data/vm-100-disk-1  type                  volume                    -
                    rpool/data/vm-100-disk-1  creation              Mon Jan  8 13:18 2024     -
                    rpool/data/vm-100-disk-1  used                  33.5G                     -
                    rpool/data/vm-100-disk-1  available             684G                      -
                    rpool/data/vm-100-disk-1  referenced            33.5G                     -
                    rpool/data/vm-100-disk-1  compressratio         3.58x                     -
                    rpool/data/vm-100-disk-1  reservation           none                      default
                    rpool/data/vm-100-disk-1  volsize               128G                      local
                    rpool/data/vm-100-disk-1  volblocksize          16K                       default
                    rpool/data/vm-100-disk-1  checksum              on                        default
                    rpool/data/vm-100-disk-1  compression           on                        inherited from rpool
                    rpool/data/vm-100-disk-1  readonly              off                       default
                    rpool/data/vm-100-disk-1  createtxg             2282                      -
                    rpool/data/vm-100-disk-1  copies                1                         default
                    rpool/data/vm-100-disk-1  refreservation        none                      default
                    rpool/data/vm-100-disk-1  guid                  7625546012721003177       -
                    rpool/data/vm-100-disk-1  primarycache          all                       default
                    rpool/data/vm-100-disk-1  secondarycache        all                       default
                    rpool/data/vm-100-disk-1  usedbysnapshots       0B                        -
                    rpool/data/vm-100-disk-1  usedbydataset         33.5G                     -
                    rpool/data/vm-100-disk-1  usedbychildren        0B                        -
                    rpool/data/vm-100-disk-1  usedbyrefreservation  0B                        -
                    rpool/data/vm-100-disk-1  logbias               latency                   default
                    rpool/data/vm-100-disk-1  objsetid              2013                      -
                    rpool/data/vm-100-disk-1  dedup                 off                       default
                    rpool/data/vm-100-disk-1  mlslabel              none                      default
                    rpool/data/vm-100-disk-1  sync                  standard                  inherited from rpool
                    rpool/data/vm-100-disk-1  refcompressratio      3.58x                     -
                    rpool/data/vm-100-disk-1  written               33.5G                     -
                    rpool/data/vm-100-disk-1  logicalused           119G                      -
                    rpool/data/vm-100-disk-1  logicalreferenced     119G                      -
                    rpool/data/vm-100-disk-1  volmode               default                   default
                    rpool/data/vm-100-disk-1  snapshot_limit        none                      default
                    rpool/data/vm-100-disk-1  snapshot_count        none                      default
                    rpool/data/vm-100-disk-1  snapdev               hidden                    default
                    rpool/data/vm-100-disk-1  context               none                      default
                    rpool/data/vm-100-disk-1  fscontext             none                      default
                    rpool/data/vm-100-disk-1  defcontext            none                      default
                    rpool/data/vm-100-disk-1  rootcontext           none                      default
                    rpool/data/vm-100-disk-1  redundant_metadata    all                       default
                    rpool/data/vm-100-disk-1  encryption            off                       default
                    rpool/data/vm-100-disk-1  keylocation           none                      default
                    rpool/data/vm-100-disk-1  keyformat             none                      default
                    rpool/data/vm-100-disk-1  pbkdf2iters           0                         default
                    rpool/data/vm-100-disk-1  snapshots_changed     Mon Feb 12  9:32:58 2024  -
                    
                    S 1 Reply Last reply Reply Quote 0
                    • S
                      SteveITS Galactic Empire @sloopbun
                      last edited by

                      @sloopbun I remembered this thread https://forum.netgate.com/topic/183318/free-up-space-disk-storage-80/ with a similar report I think but it doesn't look like there was a resolution.

                      Pre-2.7.2/23.09: Only install packages for your version, or risk breaking it. Select your branch in System/Update/Update Settings.
                      When upgrading, allow 10-15 minutes to restart, or more depending on packages and device speed.
                      Upvote 👍 helpful posts!

                      S 1 Reply Last reply Reply Quote 0
                      • S
                        sloopbun @SteveITS
                        last edited by

                        @SteveITS said in pfsense VM disk becomes full - please help identify the culprit?:

                        @sloopbun I remembered this thread https://forum.netgate.com/topic/183318/free-up-space-disk-storage-80/ with a similar report I think but it doesn't look like there was a resolution.

                        In that thread, it is suggested that the command geom part list might reveal something, but it looks normal to me but maybe someone else can spot something?:

                        [2.7.2-RELEASE][root@pfSense.spacelab]/root: geom part list
                        Geom name: vtbd0
                        modified: false
                        state: OK
                        fwheads: 16
                        fwsectors: 63
                        last: 268435415
                        first: 40
                        entries: 128
                        scheme: GPT
                        Providers:
                        1. Name: vtbd0p1
                           Mediasize: 272629760 (260M)
                           Sectorsize: 512
                           Stripesize: 0
                           Stripeoffset: 20480
                           Mode: r1w1e1
                           efimedia: HD(1,GPT,616156c8-afd5-11ee-9ccd-e9881622351f,0x28,0x82000)
                           rawuuid: 616156c8-afd5-11ee-9ccd-e9881622351f
                           rawtype: c12a7328-f81f-11d2-ba4b-00a0c93ec93b
                           label: (null)
                           length: 272629760
                           offset: 20480
                           type: efi
                           index: 1
                           end: 532519
                           start: 40
                        2. Name: vtbd0p2
                           Mediasize: 132871356416 (124G)
                           Sectorsize: 512
                           Stripesize: 0
                           Stripeoffset: 272650240
                           Mode: r1w1e2
                           efimedia: HD(2,GPT,6161bcfd-afd5-11ee-9ccd-e9881622351f,0x82028,0xf77e000)
                           rawuuid: 6161bcfd-afd5-11ee-9ccd-e9881622351f
                           rawtype: 516e7cb6-6ecf-11d6-8ff8-00022d09712b
                           label: (null)
                           length: 132871356416
                           offset: 272650240
                           type: freebsd-ufs
                           index: 2
                           end: 260046887
                           start: 532520
                        3. Name: vtbd0p3
                           Mediasize: 4294926336 (4.0G)
                           Sectorsize: 512
                           Stripesize: 0
                           Stripeoffset: 133144006656
                           Mode: r1w1e1
                           efimedia: HD(3,GPT,616220f2-afd5-11ee-9ccd-e9881622351f,0xf800028,0x7fffb0)
                           rawuuid: 616220f2-afd5-11ee-9ccd-e9881622351f
                           rawtype: 516e7cb5-6ecf-11d6-8ff8-00022d09712b
                           label: (null)
                           length: 4294926336
                           offset: 133144006656
                           type: freebsd-swap
                           index: 3
                           end: 268435415
                           start: 260046888
                        Consumers:
                        1. Name: vtbd0
                           Mediasize: 137438953472 (128G)
                           Sectorsize: 512
                           Mode: r3w3e7
                        
                        [2.7.2-RELEASE][root@pfSense.spacelab]/root: gpart show -p
                        =>       40  268435376    vtbd0  GPT  (128G)
                                 40     532480  vtbd0p1  efi  (260M)
                             532520  259514368  vtbd0p2  freebsd-ufs  (124G)
                          260046888    8388528  vtbd0p3  freebsd-swap  (4.0G)
                        

                        After deleting some old logs and such, dushows just 4.8G of disk usage but df shows 26G used...

                        [2.7.2-RELEASE][root@pfSense.spacelab]/root: du -h -d1 /
                        4.0K	/.snap
                        101M	/boot
                        4.5K	/dev
                         16M	/rescue
                        4.0K	/proc
                         96M	/root
                        2.1G	/var
                        4.0K	/media
                         12K	/conf.default
                        4.0K	/mnt
                         13M	/tmp
                        4.6M	/sbin
                         17M	/lib
                        4.0K	/net
                         15M	/cf
                        164K	/libexec
                        8.0M	/etc
                        1.4M	/bin
                        1.8G	/usr
                         20K	/home
                        1.1M	/tftpboot
                        4.8G	/
                        
                        [2.7.2-RELEASE][root@pfSense.spacelab]/root: df -hi
                        Filesystem                     Size    Used   Avail Capacity iused ifree %iused  Mounted on
                        /dev/ufsid/659ec5d8d33f9720    120G     26G     85G    23%     55k   16M    0%   /
                        devfs                          1.0K      0B    1.0K     0%       0     0     -   /dev
                        /dev/vtbd0p1                   260M    1.3M    259M     1%       2   510    0%   /boot/efi
                        tmpfs                          4.0M    192K    3.8M     5%      56   14k    0%   /var/run
                        
                        S 1 Reply Last reply Reply Quote 0
                        • S
                          sloopbun @sloopbun
                          last edited by

                          I am not 100% sure, but I don't think I had this problem when I had pfsense on zfs, on top of the zvol in proxmox. I believe this kind of zfs on zfs is not recommended because it leads to write amplification, but it would be an improvement for me if another solution cannot be found.

                          I could go back to that. Or I could go back to bare-metal - but I am using this proxmox machine for backing up my other proxmox machine, so I would prefer not to at this stage. There is of course the other downside of losing proxmox managed backups and snapshots, but that is not a deal breaker.

                          S 1 Reply Last reply Reply Quote 0
                          • P
                            Popolou @sloopbun
                            last edited by

                            @sloopbun said in pfsense VM disk becomes full - please help identify the culprit?:

                            Since I had posted, my disk usage had gone from 13G to 19G.

                            Where are you checking this from, within pfsense or via the hypervisor/proxmox?

                            S 1 Reply Last reply Reply Quote 0
                            • S
                              sloopbun @Popolou
                              last edited by sloopbun

                              @Popolou said in pfsense VM disk becomes full - please help identify the culprit?:

                              @sloopbun said in pfsense VM disk becomes full - please help identify the culprit?:

                              Since I had posted, my disk usage had gone from 13G to 19G.

                              Where are you checking this from, within pfsense or via the hypervisor/proxmox?

                              From within pfsense. For example, below is the progression over a few hours today, but I do not see any change in the zvol reported on the host, proxmox.

                              root@pvepbs:~# date
                              Tue Feb 13 08:45:13 AM CET 2024
                              
                              root@pvepbs:~# zfs list rpool/data/vm-100-disk-1
                              NAME                       USED  AVAIL  REFER  MOUNTPOINT
                              rpool/data/vm-100-disk-1  33.4G   684G  33.4G  -
                              
                              root@pvepbs:~# date
                              Tue Feb 13 03:14:46 PM CET 2024
                              
                              root@pvepbs:~# zfs list rpool/data/vm-100-disk-1
                              NAME                       USED  AVAIL  REFER  MOUNTPOINT
                              rpool/data/vm-100-disk-1  33.2G   684G  33.2G  -
                              
                              [2.7.2-RELEASE][root@pfSense.spacelab]/root: date
                              Tue Feb 13 08:45:13 CET 2024
                              
                              [2.7.2-RELEASE][root@pfSense.spacelab]/root: df -hi /
                              Filesystem                     Size    Used   Avail Capacity iused ifree %iused  Mounted on
                              /dev/ufsid/659ec5d8d33f9720    120G     26G     85G    23%     55k   16M    0%   /
                              
                              [2.7.2-RELEASE][root@pfSense.spacelab]/root: date
                              Tue Feb 13 15:07:25 CET 2024
                              
                              [2.7.2-RELEASE][root@pfSense.spacelab]/root: df -hi /
                              Filesystem                     Size    Used   Avail Capacity iused ifree %iused  Mounted on
                              /dev/ufsid/659ec5d8d33f9720    120G     32G     79G    29%     55k   16M    0%   /
                              
                              [2.7.2-RELEASE][root@pfSense.spacelab]/root: du -h -d 1 /
                              4.0K	/.snap
                              101M	/boot
                              4.5K	/dev
                               16M	/rescue
                              4.0K	/proc
                               96M	/root
                              2.2G	/var
                              4.0K	/media
                               12K	/conf.default
                              4.0K	/mnt
                              9.8M	/tmp
                              4.6M	/sbin
                               17M	/lib
                              4.0K	/net
                               15M	/cf
                              164K	/libexec
                              8.0M	/etc
                              1.4M	/bin
                              1.8G	/usr
                               20K	/home
                              1.1M	/tftpboot
                              4.8G	/
                              
                              1 Reply Last reply Reply Quote 0
                              • S
                                serbus @sloopbun
                                last edited by

                                @sloopbun said in pfsense VM disk becomes full - please help identify the culprit?:

                                I believe this kind of zfs on zfs is not recommended

                                Hello!

                                It is not recommended.

                                Comparing the output from df and du can be problematic, such as when you mount over the top of a folder that already has files in it, or a file has been deleted but is still open.

                                You may need to try something like lsof or fstat to dig deeper.

                                John

                                Lex parsimoniae

                                S 1 Reply Last reply Reply Quote 0
                                • S
                                  sloopbun @serbus
                                  last edited by

                                  @serbus Thanks for the suggestion. Any recommendation incantations of fstat and lsof? I thought I might find unlinked files with lsof, but lsof +L1 / did not show any 0 in the NLINK column.

                                  Similarly, I am not sure what I am looking for with fstat...

                                  [2.7.2-RELEASE][root@pfSense.spacelab]/root: fstat | awk '{print $5}' | sort | uniq -c | sort -nr
                                   466 /
                                   276 /dev
                                   155 local
                                    94 internet
                                    83 pipe
                                    44
                                    39 /var/run
                                    35 internet6
                                    14 -
                                    12 netgraph
                                     3 route
                                     3 pseudo-terminal
                                     1 MOUNT
                                  
                                  S 1 Reply Last reply Reply Quote 0
                                  • S
                                    sloopbun @sloopbun
                                    last edited by sloopbun

                                    If I run five fsck from single user mode, as recommended in the docs, it shows no errors, even for the first run.

                                    Screenshot 2024-02-13 at 19.43.57.png

                                    But when I run fsck from the regular pfsense terminal, I have a lot of unreferenced files, though the free space is reported correctly because this is just after a fresh reboot.

                                    That is weird, right?

                                    fsck:

                                    [2.7.2-RELEASE][root@pfSense.spacelab]/root: fsck -y /dev/ufsid/659ec5d8d33f9720
                                    ** /dev/ufsid/659ec5d8d33f9720 (NO WRITE)
                                    ** SU+J Recovering /dev/ufsid/659ec5d8d33f9720
                                    
                                    USE JOURNAL? no
                                    
                                    Skipping journal, falling through to full fsck
                                    ** Last Mounted on /
                                    ** Root file system
                                    ** Phase 1 - Check Blocks and Sizes
                                    INCORRECT BLOCK COUNT I=400686 (273856 should be 258944)
                                    CORRECT? no
                                    
                                    INCORRECT BLOCK COUNT I=641028 (8 should be 0)
                                    CORRECT? no
                                    
                                    INCORRECT BLOCK COUNT I=7371851 (383040 should be 382784)
                                    CORRECT? no
                                    
                                    INCORRECT BLOCK COUNT I=9615548 (896 should be 640)
                                    CORRECT? no
                                    
                                    INCORRECT BLOCK COUNT I=9615593 (144 should be 128)
                                    CORRECT? no
                                    
                                    ** Phase 2 - Check Pathnames
                                    ** Phase 3 - Check Connectivity
                                    ** Phase 4 - Check Reference Counts
                                    UNREF FILE I=400686  OWNER=root MODE=100600
                                    SIZE=140112184 MTIME=Feb 13 19:53 2024
                                    
                                    CLEAR? no
                                    
                                    UNREF FILE I=15225275  OWNER=root MODE=100666
                                    SIZE=0 MTIME=Feb 13 19:44 2024
                                    
                                    CLEAR? no
                                    
                                    ** Phase 5 - Check Cyl groups
                                    FREE BLK COUNT(S) WRONG IN SUPERBLK
                                    SALVAGE? no
                                    
                                    SUMMARY INFORMATION BAD
                                    SALVAGE? no
                                    
                                    BLK(S) MISSING IN BIT MAPS
                                    SALVAGE? no
                                    
                                    54742 files, 1317012 used, 30100372 free (4028 frags, 3762043 blocks, 0.0% fragmentation)
                                    

                                    [2.7.2-RELEASE][root@pfSense.spacelab]/root: fsck -y /
                                    ** /dev/ufsid/659ec5d8d33f9720 (NO WRITE)
                                    ** SU+J Recovering /dev/ufsid/659ec5d8d33f9720
                                    
                                    USE JOURNAL? no
                                    
                                    Skipping journal, falling through to full fsck
                                    ** Last Mounted on /
                                    ** Root file system
                                    ** Phase 1 - Check Blocks and Sizes
                                    INCORRECT BLOCK COUNT I=400686 (3136 should be 8)
                                    CORRECT? no
                                    
                                    INCORRECT BLOCK COUNT I=480777 (8 should be 0)
                                    CORRECT? no
                                    
                                    INCORRECT BLOCK COUNT I=480791 (8 should be 0)
                                    CORRECT? no
                                    
                                    INCORRECT BLOCK COUNT I=480799 (8 should be 0)
                                    CORRECT? no
                                    
                                    INCORRECT BLOCK COUNT I=480800 (8 should be 0)
                                    CORRECT? no
                                    
                                    INCORRECT BLOCK COUNT I=1041768 (8 should be 0)
                                    CORRECT? no
                                    
                                    INCORRECT BLOCK COUNT I=1041770 (2560 should be 768)
                                    CORRECT? no
                                    
                                    INCORRECT BLOCK COUNT I=1041771 (8 should be 0)
                                    CORRECT? no
                                    
                                    INCORRECT BLOCK COUNT I=2243678 (64 should be 8)
                                    CORRECT? no
                                    
                                    INCORRECT BLOCK COUNT I=3044945 (8 should be 0)
                                    CORRECT? no
                                    
                                    INCORRECT BLOCK COUNT I=3285252 (8 should be 0)
                                    CORRECT? no
                                    
                                    INCORRECT BLOCK COUNT I=3285261 (8 should be 0)
                                    CORRECT? no
                                    
                                    INCORRECT BLOCK COUNT I=3285294 (8 should be 0)
                                    CORRECT? no
                                    
                                    INCORRECT BLOCK COUNT I=3285301 (8 should be 0)
                                    CORRECT? no
                                    
                                    INCORRECT BLOCK COUNT I=3285324 (8 should be 0)
                                    CORRECT? no
                                    
                                    INCORRECT BLOCK COUNT I=6330120 (8 should be 0)
                                    CORRECT? no
                                    
                                    INCORRECT BLOCK COUNT I=6330142 (8 should be 0)
                                    CORRECT? no
                                    
                                    INCORRECT BLOCK COUNT I=7131638 (48 should be 0)
                                    CORRECT? no
                                    
                                    INCORRECT BLOCK COUNT I=7131644 (960 should be 768)
                                    CORRECT? no
                                    
                                    INCORRECT BLOCK COUNT I=7131645 (16 should be 0)
                                    CORRECT? no
                                    
                                    INCORRECT BLOCK COUNT I=7131718 (960 should be 768)
                                    CORRECT? no
                                    
                                    INCORRECT BLOCK COUNT I=7131722 (960 should be 768)
                                    CORRECT? no
                                    
                                    INCORRECT BLOCK COUNT I=7131734 (960 should be 0)
                                    CORRECT? no
                                    
                                    INCORRECT BLOCK COUNT I=7131742 (960 should be 768)
                                    CORRECT? no
                                    
                                    INCORRECT BLOCK COUNT I=7131751 (960 should be 768)
                                    CORRECT? no
                                    
                                    INCORRECT BLOCK COUNT I=7371851 (380224 should be 380096)
                                    CORRECT? no
                                    
                                    INCORRECT BLOCK COUNT I=9615548 (624 should be 544)
                                    CORRECT? no
                                    
                                    INCORRECT BLOCK COUNT I=9615562 (48 should be 24)
                                    CORRECT? no
                                    
                                    INCORRECT BLOCK COUNT I=9695856 (8 should be 0)
                                    CORRECT? no
                                    
                                    INCORRECT BLOCK COUNT I=9855876 (2304 should be 0)
                                    CORRECT? no
                                    
                                    INCORRECT BLOCK COUNT I=12100439 (8 should be 0)
                                    CORRECT? no
                                    
                                    INCORRECT BLOCK COUNT I=13542017 (8 should be 0)
                                    CORRECT? no
                                    
                                    INCORRECT BLOCK COUNT I=13542018 (8 should be 0)
                                    CORRECT? no
                                    
                                    INCORRECT BLOCK COUNT I=14102562 (8 should be 0)
                                    CORRECT? no
                                    
                                    INCORRECT BLOCK COUNT I=14102571 (48 should be 0)
                                    CORRECT? no
                                    
                                    INCORRECT BLOCK COUNT I=14102821 (8 should be 0)
                                    CORRECT? no
                                    
                                    INCORRECT BLOCK COUNT I=14102834 (8 should be 0)
                                    CORRECT? no
                                    
                                    INCORRECT BLOCK COUNT I=15225288 (8 should be 0)
                                    CORRECT? no
                                    
                                    INCORRECT BLOCK COUNT I=15225289 (8 should be 0)
                                    CORRECT? no
                                    
                                    INCORRECT BLOCK COUNT I=15225290 (48 should be 0)
                                    CORRECT? no
                                    
                                    INCORRECT BLOCK COUNT I=15225291 (8 should be 0)
                                    CORRECT? no
                                    
                                    ** Phase 2 - Check Pathnames
                                    SETTING DIRTY FLAG IN READ_ONLY MODE
                                    
                                    UNEXPECTED SOFT UPDATE INCONSISTENCY
                                    SETTING DIRTY FLAG IN READ_ONLY MODE
                                    
                                    UNEXPECTED SOFT UPDATE INCONSISTENCY
                                    SETTING DIRTY FLAG IN READ_ONLY MODE
                                    
                                    UNEXPECTED SOFT UPDATE INCONSISTENCY
                                    SETTING DIRTY FLAG IN READ_ONLY MODE
                                    
                                    UNEXPECTED SOFT UPDATE INCONSISTENCY
                                    ** Phase 3 - Check Connectivity
                                    UNREF DIR  I=7291717  OWNER=root MODE=40755
                                    SIZE=512 MTIME=Feb 13 19:44 2024
                                    
                                    RECONNECT? no
                                    
                                    UNREF DIR  I=7291716  OWNER=root MODE=40755
                                    SIZE=512 MTIME=Feb 13 19:44 2024
                                    
                                    RECONNECT? no
                                    
                                    UNREF DIR  I=7051269  OWNER=root MODE=40755
                                    SIZE=512 MTIME=Feb 13 19:44 2024
                                    
                                    RECONNECT? no
                                    
                                    UNREF DIR  I=480792  OWNER=root MODE=40755
                                    SIZE=512 MTIME=Feb 13 19:45 2024
                                    
                                    RECONNECT? no
                                    
                                    UNREF DIR  I=480801  OWNER=root MODE=40755
                                    SIZE=512 MTIME=Feb 13 19:45 2024
                                    
                                    RECONNECT? no
                                    
                                    ** Phase 4 - Check Reference Counts
                                    UNREF FILE  I=320567  OWNER=root MODE=100600
                                    SIZE=0 MTIME=Feb 13 19:45 2024
                                    
                                    RECONNECT? no
                                    
                                    
                                    CLEAR? no
                                    
                                    UNREF FILE  I=320569  OWNER=root MODE=100600
                                    SIZE=0 MTIME=Feb 13 19:45 2024
                                    
                                    RECONNECT? no
                                    
                                    
                                    CLEAR? no
                                    
                                    UNREF FILE  I=320570  OWNER=root MODE=100600
                                    SIZE=0 MTIME=Feb 13 19:45 2024
                                    
                                    RECONNECT? no
                                    
                                    
                                    CLEAR? no
                                    
                                    UNREF FILE  I=320571  OWNER=root MODE=100600
                                    SIZE=0 MTIME=Feb 13 19:45 2024
                                    
                                    RECONNECT? no
                                    
                                    
                                    CLEAR? no
                                    
                                    UNREF FILE  I=320572  OWNER=root MODE=100600
                                    SIZE=888 MTIME=Feb 13 19:45 2024
                                    
                                    RECONNECT? no
                                    
                                    
                                    CLEAR? no
                                    
                                    UNREF FILE  I=320577  OWNER=root MODE=100600
                                    SIZE=319 MTIME=Feb 13 19:45 2024
                                    
                                    RECONNECT? no
                                    
                                    
                                    CLEAR? no
                                    
                                    UNREF FILE  I=320579  OWNER=root MODE=100600
                                    SIZE=503 MTIME=Feb 13 19:45 2024
                                    
                                    RECONNECT? no
                                    
                                    
                                    CLEAR? no
                                    
                                    UNREF FILE  I=320580  OWNER=root MODE=100600
                                    SIZE=262 MTIME=Feb 13 19:45 2024
                                    
                                    RECONNECT? no
                                    
                                    
                                    CLEAR? no
                                    
                                    ZERO LENGTH DIR I=480777  OWNER=root MODE=40755
                                    SIZE=0 MTIME=Feb 13 19:45 2024
                                    
                                    CLEAR? no
                                    
                                    ZERO LENGTH DIR I=480782  OWNER=root MODE=40755
                                    SIZE=0 MTIME=Feb 13 19:45 2024
                                    
                                    CLEAR? no
                                    
                                    ZERO LENGTH DIR I=480783  OWNER=root MODE=40755
                                    SIZE=0 MTIME=Feb 13 19:45 2024
                                    
                                    CLEAR? no
                                    
                                    ZERO LENGTH DIR I=480784  OWNER=root MODE=40755
                                    SIZE=0 MTIME=Feb 13 19:45 2024
                                    
                                    CLEAR? no
                                    
                                    UNREF FILE  I=480785  OWNER=root MODE=100644
                                    SIZE=0 MTIME=Feb 13 19:45 2024
                                    
                                    RECONNECT? no
                                    
                                    
                                    CLEAR? no
                                    
                                    UNREF FILE  I=480786  OWNER=root MODE=100644
                                    SIZE=0 MTIME=Feb 13 19:45 2024
                                    
                                    RECONNECT? no
                                    
                                    
                                    CLEAR? no
                                    
                                    UNREF FILE  I=480787  OWNER=root MODE=100644
                                    SIZE=0 MTIME=Feb 13 19:45 2024
                                    
                                    RECONNECT? no
                                    
                                    
                                    CLEAR? no
                                    
                                    UNREF FILE  I=480788  OWNER=root MODE=100644
                                    SIZE=0 MTIME=Feb 13 19:45 2024
                                    
                                    RECONNECT? no
                                    
                                    
                                    CLEAR? no
                                    
                                    UNREF FILE  I=480789  OWNER=root MODE=100644
                                    SIZE=0 MTIME=Feb 13 19:45 2024
                                    
                                    RECONNECT? no
                                    
                                    
                                    CLEAR? no
                                    
                                    UNREF FILE  I=480790  OWNER=root MODE=100644
                                    SIZE=0 MTIME=Feb 13 19:45 2024
                                    
                                    RECONNECT? no
                                    
                                    
                                    CLEAR? no
                                    
                                    ZERO LENGTH DIR I=480791  OWNER=root MODE=40755
                                    SIZE=0 MTIME=Feb 13 19:45 2024
                                    
                                    CLEAR? no
                                    
                                    UNREF DIR I=480792  OWNER=root MODE=40755
                                    SIZE=512 MTIME=Feb 13 19:45 2024
                                    
                                    CLEAR? no
                                    
                                    ZERO LENGTH DIR I=480799  OWNER=root MODE=40755
                                    SIZE=0 MTIME=Feb 13 19:45 2024
                                    
                                    CLEAR? no
                                    
                                    ZERO LENGTH DIR I=480800  OWNER=root MODE=40755
                                    SIZE=0 MTIME=Feb 13 19:45 2024
                                    
                                    CLEAR? no
                                    
                                    UNREF DIR I=480801  OWNER=root MODE=40755
                                    SIZE=512 MTIME=Feb 13 19:45 2024
                                    
                                    CLEAR? no
                                    
                                    UNREF FILE  I=961546  OWNER=root MODE=140666
                                    SIZE=0 MTIME=Feb 13 19:45 2024
                                    
                                    RECONNECT? no
                                    
                                    
                                    CLEAR? no
                                    
                                    UNREF FILE  I=1041770  OWNER=root MODE=100644
                                    SIZE=1253376 MTIME=Feb  9 19:29 2024
                                    
                                    RECONNECT? no
                                    
                                    
                                    CLEAR? no
                                    
                                    UNREF FILE  I=1041777  OWNER=root MODE=100644
                                    SIZE=212992 MTIME=Dec  6 22:23 2023
                                    
                                    RECONNECT? no
                                    
                                    
                                    CLEAR? no
                                    
                                    UNREF FILE  I=1041802  OWNER=root MODE=100644
                                    SIZE=0 MTIME=Feb 13 19:45 2024
                                    
                                    RECONNECT? no
                                    
                                    
                                    CLEAR? no
                                    
                                    UNREF FILE  I=1041810  OWNER=root MODE=100644
                                    SIZE=0 MTIME=Feb 13 19:45 2024
                                    
                                    RECONNECT? no
                                    
                                    
                                    CLEAR? no
                                    
                                    UNREF FILE  I=2564108  OWNER=root MODE=100644
                                    SIZE=0 MTIME=Feb 13 19:45 2024
                                    
                                    RECONNECT? no
                                    
                                    
                                    CLEAR? no
                                    
                                    UNREF FILE  I=2564118  OWNER=root MODE=100644
                                    SIZE=0 MTIME=Feb 13 19:45 2024
                                    
                                    RECONNECT? no
                                    
                                    
                                    CLEAR? no
                                    
                                    UNREF FILE  I=2564120  OWNER=root MODE=140755
                                    SIZE=0 MTIME=Feb 13 19:40 2024
                                    
                                    RECONNECT? no
                                    
                                    
                                    CLEAR? no
                                    
                                    UNREF FILE  I=2564121  OWNER=root MODE=100600
                                    SIZE=16384 MTIME=Feb 13 19:45 2024
                                    
                                    RECONNECT? no
                                    
                                    
                                    CLEAR? no
                                    
                                    UNREF FILE  I=2564122  OWNER=root MODE=140755
                                    SIZE=0 MTIME=Feb 13 19:45 2024
                                    
                                    RECONNECT? no
                                    
                                    
                                    CLEAR? no
                                    
                                    LINK COUNT DIR I=6330112  OWNER=root MODE=40755
                                    SIZE=512 MTIME=Feb 13 19:45 2024  COUNT 6 SHOULD BE 5
                                    ADJUST? no
                                    
                                    UNREF FILE  I=6330120  OWNER=root MODE=100644
                                    SIZE=0 MTIME=Feb 13 19:45 2024
                                    
                                    RECONNECT? no
                                    
                                    
                                    CLEAR? no
                                    
                                    UNREF FILE  I=6330140  OWNER=root MODE=100644
                                    SIZE=221 MTIME=Feb 13 19:45 2024
                                    
                                    RECONNECT? no
                                    
                                    
                                    CLEAR? no
                                    
                                    UNREF FILE  I=6330142  OWNER=root MODE=100644
                                    SIZE=0 MTIME=Feb 13 19:45 2024
                                    
                                    RECONNECT? no
                                    
                                    
                                    CLEAR? no
                                    
                                    UNREF FILE  I=6810887  OWNER=root MODE=140666
                                    SIZE=0 MTIME=Feb 13 19:45 2024
                                    
                                    RECONNECT? no
                                    
                                    
                                    CLEAR? no
                                    
                                    UNREF DIR I=7051269  OWNER=root MODE=40755
                                    SIZE=512 MTIME=Feb 13 19:44 2024
                                    
                                    CLEAR? no
                                    
                                    UNREF FILE  I=7131644  OWNER=root MODE=100644
                                    SIZE=457710 MTIME=Feb 13 19:45 2024
                                    
                                    RECONNECT? no
                                    
                                    
                                    CLEAR? no
                                    
                                    UNREF FILE  I=7131656  OWNER=root MODE=100644
                                    SIZE=0 MTIME=Feb 13 19:45 2024
                                    
                                    RECONNECT? no
                                    
                                    
                                    CLEAR? no
                                    
                                    UNREF FILE  I=7131662  OWNER=root MODE=100644
                                    SIZE=0 MTIME=Feb 13 19:45 2024
                                    
                                    RECONNECT? no
                                    
                                    
                                    CLEAR? no
                                    
                                    UNREF FILE  I=7131681  OWNER=root MODE=100644
                                    SIZE=0 MTIME=Feb 13 19:45 2024
                                    
                                    RECONNECT? no
                                    
                                    
                                    CLEAR? no
                                    
                                    LINK COUNT FILE I=7131688  OWNER=root MODE=100755
                                    SIZE=348096 MTIME=Dec  8 18:07 2023  COUNT 4 SHOULD BE 3
                                    ADJUST? no
                                    
                                    UNREF FILE  I=7131705  OWNER=root MODE=100644
                                    SIZE=0 MTIME=Feb 13 19:45 2024
                                    
                                    RECONNECT? no
                                    
                                    
                                    CLEAR? no
                                    
                                    UNREF FILE  I=7131710  OWNER=root MODE=100644
                                    SIZE=0 MTIME=Feb 13 19:45 2024
                                    
                                    RECONNECT? no
                                    
                                    
                                    CLEAR? no
                                    
                                    UNREF FILE  I=7131715  OWNER=root MODE=100644
                                    SIZE=0 MTIME=Feb 13 19:45 2024
                                    
                                    RECONNECT? no
                                    
                                    
                                    CLEAR? no
                                    
                                    UNREF FILE  I=7131718  OWNER=root MODE=100644
                                    SIZE=457244 MTIME=Feb 13 19:45 2024
                                    
                                    RECONNECT? no
                                    
                                    
                                    CLEAR? no
                                    
                                    UNREF FILE  I=7131722  OWNER=root MODE=100644
                                    SIZE=457710 MTIME=Feb 13 19:45 2024
                                    
                                    RECONNECT? no
                                    
                                    
                                    CLEAR? no
                                    
                                    UNREF FILE  I=7131734  OWNER=root MODE=100644
                                    SIZE=457710 MTIME=Feb 13 19:45 2024
                                    
                                    RECONNECT? no
                                    
                                    
                                    CLEAR? no
                                    
                                    UNREF FILE  I=7131742  OWNER=root MODE=100644
                                    SIZE=457244 MTIME=Feb 13 19:45 2024
                                    
                                    RECONNECT? no
                                    
                                    
                                    CLEAR? no
                                    
                                    UNREF FILE  I=7131747  OWNER=root MODE=100644
                                    SIZE=0 MTIME=Feb 13 19:45 2024
                                    
                                    RECONNECT? no
                                    
                                    
                                    CLEAR? no
                                    
                                    UNREF FILE  I=7131751  OWNER=root MODE=100644
                                    SIZE=457710 MTIME=Feb 13 19:45 2024
                                    
                                    RECONNECT? no
                                    
                                    
                                    CLEAR? no
                                    
                                    UNREF DIR I=7291716  OWNER=root MODE=40755
                                    SIZE=512 MTIME=Feb 13 19:44 2024
                                    
                                    CLEAR? no
                                    
                                    UNREF DIR I=7291717  OWNER=root MODE=40755
                                    SIZE=512 MTIME=Feb 13 19:44 2024
                                    
                                    CLEAR? no
                                    
                                    LINK COUNT FILE I=9615549  OWNER=root MODE=100600
                                    SIZE=11300 MTIME=Feb 12 22:11 2024  COUNT 2 SHOULD BE 1
                                    ADJUST? no
                                    
                                    LINK COUNT FILE I=9615560  OWNER=root MODE=100600
                                    SIZE=11448 MTIME=Feb 13 12:49 2024  COUNT 2 SHOULD BE 1
                                    ADJUST? no
                                    
                                    UNREF FILE  I=9615576  OWNER=root MODE=100600
                                    SIZE=0 MTIME=Feb 13 19:45 2024
                                    
                                    RECONNECT? no
                                    
                                    
                                    CLEAR? no
                                    
                                    LINK COUNT FILE I=9615577  OWNER=root MODE=100600
                                    SIZE=11293 MTIME=Feb 13 01:48 2024  COUNT 2 SHOULD BE 1
                                    ADJUST? no
                                    
                                    LINK COUNT FILE I=9615578  OWNER=root MODE=100600
                                    SIZE=11263 MTIME=Feb 13 09:11 2024  COUNT 2 SHOULD BE 1
                                    ADJUST? no
                                    
                                    LINK COUNT FILE I=9615587  OWNER=root MODE=100600
                                    SIZE=11258 MTIME=Feb 13 16:18 2024  COUNT 2 SHOULD BE 1
                                    ADJUST? no
                                    
                                    LINK COUNT FILE I=9615588  OWNER=root MODE=100600
                                    SIZE=11317 MTIME=Feb 13 05:42 2024  COUNT 2 SHOULD BE 1
                                    ADJUST? no
                                    
                                    UNREF FILE  I=9615618  OWNER=root MODE=100600
                                    SIZE=0 MTIME=Feb 13 19:45 2024
                                    
                                    RECONNECT? no
                                    
                                    
                                    CLEAR? no
                                    
                                    UNREF FILE  I=9695987  OWNER=root MODE=100644
                                    SIZE=2220 MTIME=Feb 13 19:45 2024
                                    
                                    RECONNECT? no
                                    
                                    
                                    CLEAR? no
                                    
                                    LINK COUNT DIR I=12099330  OWNER=root MODE=40755
                                    SIZE=2560 MTIME=Feb 13 19:45 2024  COUNT 37 SHOULD BE 33
                                    ADJUST? no
                                    
                                    UNREF FILE  I=12180487  OWNER=root MODE=100644
                                    SIZE=568 MTIME=Feb 13 19:45 2024
                                    
                                    RECONNECT? no
                                    
                                    
                                    CLEAR? no
                                    
                                    ZERO LENGTH DIR I=12180505  OWNER=root MODE=40755
                                    SIZE=0 MTIME=Feb 13 19:45 2024
                                    
                                    CLEAR? no
                                    
                                    ZERO LENGTH DIR I=12180506  OWNER=root MODE=40755
                                    SIZE=0 MTIME=Feb 13 19:45 2024
                                    
                                    CLEAR? no
                                    
                                    ZERO LENGTH DIR I=12180507  OWNER=root MODE=40755
                                    SIZE=0 MTIME=Feb 13 19:45 2024
                                    
                                    CLEAR? no
                                    
                                    UNREF FILE  I=12180508  OWNER=root MODE=100644
                                    SIZE=0 MTIME=Feb 13 19:45 2024
                                    
                                    RECONNECT? no
                                    
                                    
                                    CLEAR? no
                                    
                                    UNREF FILE  I=12180509  OWNER=root MODE=100644
                                    SIZE=0 MTIME=Feb 13 19:45 2024
                                    
                                    RECONNECT? no
                                    
                                    
                                    CLEAR? no
                                    
                                    UNREF FILE  I=12180510  OWNER=root MODE=100644
                                    SIZE=0 MTIME=Feb 13 19:45 2024
                                    
                                    RECONNECT? no
                                    
                                    
                                    CLEAR? no
                                    
                                    UNREF FILE  I=12180511  OWNER=root MODE=100644
                                    SIZE=0 MTIME=Feb 13 19:45 2024
                                    
                                    RECONNECT? no
                                    
                                    
                                    CLEAR? no
                                    
                                    UNREF FILE  I=12180512  OWNER=root MODE=100644
                                    SIZE=0 MTIME=Feb 13 19:45 2024
                                    
                                    RECONNECT? no
                                    
                                    
                                    CLEAR? no
                                    
                                    UNREF FILE  I=12180513  OWNER=root MODE=100644
                                    SIZE=0 MTIME=Feb 13 19:45 2024
                                    
                                    RECONNECT? no
                                    
                                    
                                    CLEAR? no
                                    
                                    UNREF FILE I=15225275  OWNER=root MODE=100666
                                    SIZE=0 MTIME=Feb 13 19:44 2024
                                    
                                    CLEAR? no
                                    
                                    UNREF FILE  I=15225276  OWNER=root MODE=100666
                                    SIZE=0 MTIME=Feb 13 19:45 2024
                                    
                                    RECONNECT? no
                                    
                                    
                                    CLEAR? no
                                    
                                    UNREF FILE  I=15225278  OWNER=root MODE=100644
                                    SIZE=0 MTIME=Feb 13 19:45 2024
                                    
                                    RECONNECT? no
                                    
                                    
                                    CLEAR? no
                                    
                                    UNREF FILE  I=15225299  OWNER=root MODE=100666
                                    SIZE=0 MTIME=Feb 13 19:45 2024
                                    
                                    RECONNECT? no
                                    
                                    
                                    CLEAR? no
                                    
                                    UNREF FILE  I=15225300  OWNER=root MODE=100644
                                    SIZE=1776 MTIME=Feb 13 19:45 2024
                                    
                                    RECONNECT? no
                                    
                                    
                                    CLEAR? no
                                    
                                    UNREF FILE  I=15225301  OWNER=root MODE=100644
                                    SIZE=156665 MTIME=Feb 13 19:45 2024
                                    
                                    RECONNECT? no
                                    
                                    
                                    CLEAR? no
                                    
                                    ** Phase 5 - Check Cyl groups
                                    FREE BLK COUNT(S) WRONG IN SUPERBLK
                                    SALVAGE? no
                                    
                                    SUMMARY INFORMATION BAD
                                    SALVAGE? no
                                    
                                    BLK(S) MISSING IN BIT MAPS
                                    SALVAGE? no
                                    
                                    ALLOCATED FILE 15225275 MARKED FREE
                                    54697 files, 1280056 used, 30136626 free (4026 frags, 3766575 blocks, 0.0% fragmentation)
                                    

                                    [2.7.2-RELEASE][root@pfSense.spacelab]/root: df -hi /
                                    Filesystem                     Size    Used   Avail Capacity iused ifree %iused  Mounted on
                                    /dev/ufsid/659ec5d8d33f9720    120G    4.9G    105G     4%     55k   16M    0%   /
                                    
                                    S 1 Reply Last reply Reply Quote 0
                                    • S
                                      serbus @sloopbun
                                      last edited by

                                      @sloopbun

                                      Hello!

                                      This discussion and similar might have other leads you can follow.

                                      John

                                      Lex parsimoniae

                                      S 1 Reply Last reply Reply Quote 0
                                      • S
                                        sloopbun @serbus
                                        last edited by

                                        @serbus Thanks. Open, or zombie procresses/files is a likely candidate, though I cannot find any. In that link there are a couple of commands for linux that makes sense to me, but either do not turn up any results, or do not work on freebsd. Any idea what their equivalent might be?

                                        I am referring to are:

                                        lsof | grep -i deleted
                                        

                                        which returns nothing, and:

                                        [2.7.2-RELEASE][root@pfSense.spacelab]/: mount -o bind / /mnt
                                        mount: /: mount option <bind> is unknown: Invalid argument
                                        [2.7.2-RELEASE][root@pfSense.spacelab]/:
                                        

                                        which I think has an equivalent freebsd of:

                                        mount -t nullfs / /mnt

                                        Though once mounted, appear to be identical to /. No extra files in /mnt/var or anything...

                                        Was there any other avenue of exploration you saw that might help?

                                        Apart from the zombie processes/files, the other likely candidate in my mind is trim/discard/clean-up. What do you think about turning on trim for UFS in pfsense?

                                        S 1 Reply Last reply Reply Quote 0
                                        • S
                                          sloopbun @sloopbun
                                          last edited by

                                          To add an unhelpful update. This problem was still occurring a few days ago, so I restarted as usual to start the ticking time bomb again.

                                          I now have almost four days of uptime and available disk is in line with disk usage.

                                          I swear I did not change anything or try to fix anything since this thread went quiet. In fact I have been convincing myself to go back to bare metal. Super weird and I don't trust it...

                                          [2.7.2-RELEASE][root@pfSense.spacelab]/root: uptime
                                           9:19AM  up 3 days, 22:56, 2 users, load averages: 0.33, 0.22, 0.18
                                          
                                          [2.7.2-RELEASE][root@pfSense.spacelab]/root: df -h /
                                          Filesystem                     Size    Used   Avail Capacity  Mounted on
                                          /dev/ufsid/659ec5d8d33f9720    120G    5.8G    104G     5%    /
                                          
                                          [2.7.2-RELEASE][root@pfSense.spacelab]/root: du -h -d 1 /
                                          4.0K	/.snap
                                          101M	/boot
                                          4.5K	/dev
                                           16M	/rescue
                                          4.0K	/proc
                                           96M	/root
                                          3.1G	/var
                                          4.0K	/media
                                           12K	/conf.default
                                          4.0K	/mnt
                                          9.9M	/tmp
                                          4.6M	/sbin
                                           17M	/lib
                                          4.0K	/net
                                           16M	/cf
                                          164K	/libexec
                                          8.0M	/etc
                                          1.4M	/bin
                                          1.8G	/usr
                                           20K	/home
                                          1.1M	/tftpboot
                                          5.8G	/
                                          
                                          GPz1100G 1 Reply Last reply Reply Quote 0
                                          • GPz1100G
                                            GPz1100 @sloopbun
                                            last edited by

                                            @sloopbun Did you ever get this resolved? I'm about to commit to a proxmox vm install myself.

                                            1 Reply Last reply Reply Quote 0
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