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    SG2100 128GB SSD and Swap

    Scheduled Pinned Locked Moved General pfSense Questions
    swapcrashing
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    • JonathanLeeJ
      JonathanLee
      last edited by

      Screenshot 2024-05-07 at 00.04.40.png

      Make sure to upvote

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      • JonathanLeeJ
        JonathanLee
        last edited by

        Screenshot 2024-05-07 at 00.07.20.png

        Make sure to upvote

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        • JonathanLeeJ
          JonathanLee
          last edited by

          So gpart shows it has a 6GB swap however the fstab file does not list it and swapinfo shows incorrect info?

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          • JonathanLeeJ
            JonathanLee @JonathanLee
            last edited by

            @JonathanLee I should be able to just add a mount point for it right?

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            • stephenw10S
              stephenw10 Netgate Administrator
              last edited by

              Yes you should just be able to add it to the fstab. Like:

              [24.03-RELEASE][admin@5100.stevew.lan]/root: cat /etc/fstab 
              # Device		Mountpoint	FStype	Options		Dump	Pass#
              /dev/ada0p2		none	swap	sw		0	0
              

              Though you need to use /dev/ada0s3b.

              JonathanLeeJ 1 Reply Last reply Reply Quote 1
              • JonathanLeeJ
                JonathanLee @stephenw10
                last edited by

                @stephenw10 thanks after setting this the crash reports should show correct? This is new to me so the swap is essentially extra memory for the kernel? How does this help with getting crash reports? I am excited to test this with the compex card. Do I need to disable this or can I leave it enabled after we are done with it.

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                • stephenw10S
                  stephenw10 Netgate Administrator
                  last edited by

                  Yes it should store crash reports. The SWAP space still exists and is accessible from the debugger so it is able to store the crash report there. pfSense checks for any reports in the swap at boot and shows an alert if it finds any.

                  JonathanLeeJ 1 Reply Last reply Reply Quote 1
                  • JonathanLeeJ
                    JonathanLee @stephenw10
                    last edited by JonathanLee

                    @stephenw10 is it safe to leave it on? It is on the SSD. I am a bit confused with this as why @jimp recommend using a usb for swap. Is that because that is recommended over using MMC but I have a SSD and that is ok to use? Is it essentially extra memory for only crash reports? Or let’s say I use clamAV and enabled the monster signature file would it overflow into the swap for loading? Kind of like Disk based RAM? It shouldn’t use it all the time right? Again with an SSD that can withstand abuse is it ok? 6GB swap, I only have 4GB memory and I can only access around 3.5 of it.

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                    • JonathanLeeJ
                      JonathanLee
                      last edited by

                      @stephenw10 @jimp

                      It is on the SSD working :)

                      Thanks,

                      Screenshot 2024-05-07 at 07.47.35.png

                      Make sure to upvote

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                      • stephenw10S
                        stephenw10 Netgate Administrator
                        last edited by

                        Yeah it's safe to leave enabled on an SSD. But, as you say, it should never get used anyway.

                        We have recommended using a USB drive for SWAP because it's easy to add. In your case it was trivial because the SWAP partition already existed. But on a system with emmc only where there is no SWAP then re-partitioning it to add swap is complex. Easier to reinstall. Or just use a USB drive temporarily.

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                        • T
                          The Party of Hell No @stephenw10
                          last edited by

                          @stephenw10
                          Okay Stephen riddle me this... yesterday I was able to get the swap file to show in the gui under system information by editing the fstab to correct the location of the swap file partition. Today I see my amount of swap is 1024 and "gpart show" says I have 1.06 or "freebsd-swap (1.0G)." What kind of trickery is this!

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                          • T
                            The Party of Hell No @stephenw10
                            last edited by

                            This post is deleted!
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                            • stephenw10S
                              stephenw10 Netgate Administrator
                              last edited by

                              Unclear what your question is? You appear to have a 1GB SWAP partition and it's configured correctly if it appears in the gui.

                              T 1 Reply Last reply Reply Quote 0
                              • T
                                The Party of Hell No @stephenw10
                                last edited by

                                @stephenw10
                                Sorry, I was not clear... the gui, system Information says the swap file is 1024mb but the swap file according to gpart is 1.0g. My thinking is these two should match? Am I wrong about that?

                                JonathanLeeJ 1 Reply Last reply Reply Quote 1
                                • JonathanLeeJ
                                  JonathanLee @The Party of Hell No
                                  last edited by

                                  @The-Party-of-Hell-No

                                  Your in luck that is 1GB

                                  64MB X 2 = 128MB a fourth of a 1GB

                                  128MB X 2 = 512MB or half a 1GB

                                  512 X 2 = 1024MB or Also known as 1GB :)

                                  Make sure to upvote

                                  T 1 Reply Last reply Reply Quote 1
                                  • T
                                    The Party of Hell No @JonathanLee
                                    last edited by The Party of Hell No

                                    @JonathanLee said in SG2100 128GB SSD and Swap:

                                    @The-Party-of-Hell-No

                                    Your in luck that is 1GB

                                    64MB X 2 = 128MB a fourth of a 1GB

                                    128MB X 2 = 512MB or half a 1GB

                                    512 X 2 = 1024MB or Also known as 1GB :)

                                    Ahh shit, I sound like a bumpkin... never mind.
                                    Hey could someone upvote me so I am not stopped from submitting posts because I have to wait 140 seconds as a new user.

                                    1 Reply Last reply Reply Quote 1
                                    • stephenw10S
                                      stephenw10 Netgate Administrator
                                      last edited by

                                      Your rep is over 5 now you should be good.

                                      T 1 Reply Last reply Reply Quote 0
                                      • JonathanLeeJ JonathanLee referenced this topic on
                                      • T
                                        The Party of Hell No @stephenw10
                                        last edited by

                                        @stephenw10 Thank you.

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                                        • JonathanLeeJ
                                          JonathanLee
                                          last edited by

                                          Quick Question @stephenw10 @jimp

                                          I am testing SWAP on a USB drive and I used gpart to create a swap partition on the drive, I have it referenced and it is working...

                                          Screenshot 2024-05-09 at 15.35.46.png

                                          But it doesn't show usage here...
                                          Screenshot 2024-05-09 at 15.36.07.png

                                          But it does here

                                          Screenshot 2024-05-09 at 15.37.07.png

                                          This all seemed to math up with the SSD use

                                          Screenshot 2024-05-09 at 15.37.46.png

                                          Geom name: ada0
                                          modified: false
                                          state: OK
                                          fwheads: 16
                                          fwsectors: 63
                                          last: 250069679
                                          first: 1
                                          entries: 4
                                          scheme: MBR
                                          Providers:
                                          1. Name: ada0s1
                                             Mediasize: 272629760 (260M)
                                             Sectorsize: 512
                                             Stripesize: 0
                                             Stripeoffset: 512
                                             Mode: r0w0e0
                                             efimedia: HD(1,MBR,00000000,0x1,0x82000)
                                             rawtype: 239
                                             length: 272629760
                                             offset: 512
                                             type: efi
                                             index: 1
                                             end: 532480
                                             start: 1
                                          2. Name: ada0s2
                                             Mediasize: 67108864 (64M)
                                             Sectorsize: 512
                                             Stripesize: 0
                                             Stripeoffset: 272630272
                                             Mode: r0w0e0
                                             efimedia: HD(2,MBR,00000000,0x82001,0x20000)
                                             rawtype: 11
                                             length: 67108864
                                             offset: 272630272
                                             type: fat32
                                             index: 2
                                             end: 663552
                                             start: 532481
                                          3. Name: ada0s3
                                             Mediasize: 127695937024 (119G)
                                             Sectorsize: 512
                                             Stripesize: 0
                                             Stripeoffset: 339739136
                                             Mode: r1w1e2
                                             efimedia: HD(3,MBR,00000000,0xa2001,0xedda2af)
                                             attrib: active
                                             rawtype: 165
                                             length: 127695937024
                                             offset: 339739136
                                             type: freebsd
                                             index: 3
                                             end: 250069679
                                             start: 663553
                                          Consumers:
                                          1. Name: ada0
                                             Mediasize: 128035676160 (119G)
                                             Sectorsize: 512
                                             Mode: r1w1e3
                                          
                                          Geom name: ada0s3
                                          modified: false
                                          state: OK
                                          fwheads: 16
                                          fwsectors: 63
                                          last: 249406126
                                          first: 0
                                          entries: 8
                                          scheme: BSD
                                          Providers:
                                          1. Name: ada0s3a
                                             Mediasize: 120590425600 (112G)
                                             Sectorsize: 512
                                             Stripesize: 0
                                             Stripeoffset: 339747328
                                             Mode: r1w1e1
                                             rawtype: 27
                                             length: 120590425600
                                             offset: 8192
                                             type: freebsd-zfs
                                             index: 1
                                             end: 235528190
                                             start: 16
                                          2. Name: ada0s3b
                                             Mediasize: 7105150976 (6.6G)
                                             Sectorsize: 512
                                             Stripesize: 0
                                             Stripeoffset: 120930172928
                                             Mode: r0w0e0
                                             rawtype: 1
                                             length: 7105150976
                                             offset: 120590433792
                                             type: freebsd-swap
                                             index: 2
                                             end: 249405438
                                             start: 235528191
                                          Consumers:
                                          1. Name: ada0s3
                                             Mediasize: 127695937024 (119G)
                                             Sectorsize: 512
                                             Stripesize: 0
                                             Stripeoffset: 339739136
                                             Mode: r1w1e2
                                          

                                          Just to confirm this is correct right I can hear the drive running seeking etc

                                          I checked the ada0 made sure it would work unplugged it to make use it was the right drive name also

                                          Make sure to upvote

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                                          • JonathanLeeJ
                                            JonathanLee
                                            last edited by

                                            Screenshot 2024-05-09 at 15.40.28.png

                                            Disregard I spoke to soon...

                                            Make sure to upvote

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