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Over 100% disk usage

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  • S Offline
    sullrich
    last edited by Mar 29, 2007, 3:53 AM

    Do a df -h -d1 / from a shell to get a breakdown

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    • T Offline
      thinair
      last edited by Mar 29, 2007, 4:00 AM

      Output from df -h:
      Filesystem      Size    Used   Avail Capacity  Mounted on
      /dev/ad0s1a    27G     27G   -2.1G  109%    /
      devfs            1.0K    1.0K      0B   100%    /dev
      /dev/md0        1.7M    36K    1.5M     2%    /var/run
      devfs             1.0K    1.0K      0B   100%    /var/dhcpd/dev

      adding -d1 returns an illegal operation error.

      Nelson Papel

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      • S Offline
        sullrich
        last edited by Mar 29, 2007, 4:42 PM

        Sorry that should be:

        du -h -d1 /

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        • D Offline
          dotdash
          last edited by Mar 29, 2007, 5:38 PM

          Seeing over 100% in disk usage is due to the way FreeBSD calculates the free space.
          From the FreeBSD FAQ:
          9.27. How is it possible for a partition to be more than 100% full?
          A portion of each UFS partition (8%, by default) is reserved for use by the operating system and the root user. df(1) does not count that space when calculating the Capacity column, so it can exceed 100%. Also, you will notice that the Blocks column is always greater than the sum of the Used and Avail columns, usually by a factor of 8%.

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          • H Offline
            hoba
            last edited by Mar 29, 2007, 9:25 PM

            What version is this? Also what packages are you running?

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            • T Offline
              thinair
              last edited by Mar 30, 2007, 2:33 PM Mar 30, 2007, 1:58 PM

              Ok, I just tried the du -h -d1 / command.
              2.0K    /.snap
              5.2M    /boot
              780K    /bin
              1.5K    /dev
              16K    /conf.default
              2.3M    /etc
              158K    /libexec
              3.4M    /lib
              25M    /root
              1.9M    /sbin
              118M    /usr
              27G    /var
              686K    /tmp
              2.0K    /mnt
              2.9M    /cf
              2.0K    /media
              2.0K    /proc
              2.0K    /rescue
              12K    /scripts
              27G    /

              I'm using the March 23rd snapshot, the only package I have installed is ntop.  The harddrive is pretty close to be full now, the ntop service has stopped running on its own.  I'm not receiving any errors in the log except when I try to start ntop again.  I do plan to format and reinstall from the stable release and upgrade to the latest snapshot….eventually.

              Nelson Papel

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              • S Offline
                sullrich
                last edited by Mar 30, 2007, 6:22 PM

                Now do:

                do -d1 -h /var/

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                • T Offline
                  thinair
                  last edited by Mar 30, 2007, 7:34 PM

                  2.0K    /var/account
                  6.0K    /var/at
                  2.0K    /var/audit
                  2.0K    /var/backups
                  4.0K    /var/crash
                  4.0K    /var/cron
                  27G    /var/db
                  2.0K    /var/empty
                  2.0K    /var/games
                  2.0K    /var/heimdal
                  1.5M    /var/log
                  2.0K    /var/mail
                  2.0K    /var/msgs
                  2.0K    /var/named
                  2.0K    /var/preserve
                  36K    /var/run
                  2.0K    /var/rwho
                  14K    /var/spool
                  4.0K    /var/tmp
                  2.0K    /var/yp
                  58K    /var/etc
                  1.4M    /var/dhcpd
                  46K    /var/installer_logs
                  27G    /var/

                  Nelson Papel

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                  • S Offline
                    sullrich
                    last edited by Mar 30, 2007, 8:01 PM

                    Okay now:

                    du -h /var/db/

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                    • T Offline
                      thinair
                      last edited by Mar 30, 2007, 11:47 PM

                      du -h /var/db/
                      2.0K    /var/db/entropy
                      2.0K    /var/db/ipf
                      892K    /var/db/pkg
                      2.0K    /var/db/ports
                      2.0K    /var/db/portsnap
                      2.9M    /var/db/rrd
                      2.0K    /var/db/freebsd-update
                      2.0K    /var/db/pingstatus
                      2.0K    /var/db/pingmsstatus
                      27G    /var/db/ntop
                      27G    /var/db/

                      du -h /var/db/ntop
                      27G    /var/db/ntop/rrd
                      27G    /var/db/ntop

                      du -h /var/db/ntop/rrd/
                      2.0K    /var/db/ntop/rrd/graphics
                      4.0K    /var/db/ntop/rrd/flows
                      27G    /var/db/ntop/rrd/interfaces
                      27G    /var/db/ntop/rrd

                      du -h /var/db/ntop/rrd/interfaces
                      14G    /var/db/ntop/rrd/interfaces/xl0
                      12G    /var/db/ntop/rrd/interfaces/xl1
                      393M    /var/db/ntop/rrd/interfaces/ath0
                      27G    /var/db/ntop/rrd/interfaces

                      Ok, take your pick :P

                      Nelson Papel

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                      • S Offline
                        sullrich
                        last edited by Mar 31, 2007, 5:09 AM

                        Well, there it is, NTOP hogging it all.  I would recommend deleting that /var/db/ntop directory and starting over.  That is interesting that it does not recycle its logs!?

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                        • B Offline
                          billm
                          last edited by Mar 31, 2007, 9:43 PM

                          Looks like it's the ntop rrd files.  ouch!

                          –Bill

                          pfSense core developer
                          blog - http://www.ucsecurity.com/
                          twitter - billmarquette

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