XCP-ng
    • Categories
    • Recent
    • Tags
    • Popular
    • Users
    • Groups
    • Register
    • Login

    Updated XOA with kernel >5.3 to support nconnect nfs option

    Scheduled Pinned Locked Moved Xen Orchestra
    34 Posts 5 Posters 3.9k Views 5 Watching
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • olivierlambertO Offline
      olivierlambert Vates 🪐 Co-Founder CEO
      last edited by

      Hi @acomav

      Can you give more details on your setup and the result before/after? We might use this to update our XO guide with the new values 🙂

      A 1 Reply Last reply Reply Quote 0
      • A Offline
        acomav @olivierlambert
        last edited by

        @olivierlambert Hi Olivier. I'll see what I can do. I've spent the weekend cleaning up my backups and catching up on mirror transfers. Once completed, I'll do a few custom backups at various nconnect values.

        1 Reply Last reply Reply Quote 2
        • florentF Offline
          florent Vates 🪐 XO Team @Forza
          last edited by

          @Forza said in Updated XOA with kernel >5.3 to support nconnect nfs option:

          @florent hi, for the full backup test above, I used normal mode with zstd enabled. There were no snapshots of the source VM and it was stored on local ssd storage on the pool master.

          can you test a backup on an empty remote with block mode ?

          M 1 Reply Last reply Reply Quote 0
          • M Offline
            manilx @florent
            last edited by

            @florent Did a test on my 8.3 homelab.
            Using XO on a Debian 12 VM.

            2 full (delta) backups using "nconnect=6" of all my 10 VM's

            With block defined at remote:
            ScreenShot 2024-04-29 at 10.38.11.png
            ScreenShot 2024-04-29 at 10.52.12.png

            without block (my normal mode):
            ScreenShot 2024-04-29 at 10.56.04.png
            ScreenShot 2024-04-29 at 10.51.57.png

            1 Reply Last reply Reply Quote 0
            • olivierlambertO Offline
              olivierlambert Vates 🪐 Co-Founder CEO
              last edited by

              I'm not sure to get it with your graph. Can you write down the average values for each scenario?

              M 1 Reply Last reply Reply Quote 0
              • M Offline
                manilx @olivierlambert
                last edited by

                @olivierlambert

                with block: 100-150 MB/s approx
                without: 200-300 MB/s

                Values from observed NAS traffic.

                ForzaF 1 Reply Last reply Reply Quote 0
                • ForzaF Offline
                  Forza @manilx
                  last edited by

                  @manilx Do you mean block as NBD mode?

                  M 1 Reply Last reply Reply Quote 0
                  • M Offline
                    manilx @Forza
                    last edited by manilx

                    @Forza Did another test:

                    A: Remote as nfs share with "Store backup as multiple data blocks"
                    B: same but without multiple data blocks

                    1st backup to A,"Backup"
                    ScreenShot 2024-04-29 at 13.45.47.png
                    2nd backup to B, "Backup"
                    ScreenShot 2024-04-29 at 13.45.57.png
                    3rd backup to A, "Backup"
                    ScreenShot 2024-04-29 at 13.46.04.png
                    4th backup to B, "Delta Backup"
                    ScreenShot 2024-04-29 at 13.46.10.png

                    ScreenShot 2024-04-29 at 13.44.27.png

                    M 1 Reply Last reply Reply Quote 0
                    • M Offline
                      manilx @manilx
                      last edited by

                      @manilx This was just one VM. Did not use NBD (forgot to turn on)

                      1 Reply Last reply Reply Quote 0
                      • olivierlambertO Offline
                        olivierlambert Vates 🪐 Co-Founder CEO
                        last edited by

                        I'm a bit confused, you are comparing block based vs VHD, but did you also change the nconnect option between run or kept it to a specific number? (in case, which one)

                        M 1 Reply Last reply Reply Quote 0
                        • M Offline
                          manilx @olivierlambert
                          last edited by

                          @olivierlambert allbackups done with nfs option "nconnect=6"

                          M 1 Reply Last reply Reply Quote 0
                          • M Offline
                            manilx @manilx
                            last edited by

                            @manilx 2 more and yes seems to be confusing and just to round it up.

                            Same VM as above

                            Delta (full) backup using NBD without and with "nconnect=6" in the remote setting:

                            ScreenShot 2024-04-29 at 14.27.19.png

                            with nconnect=6
                            ScreenShot 2024-04-29 at 14.28.57.png

                            nconnect=6 doesn't seem to do a lot.

                            1 Reply Last reply Reply Quote 0
                            • First post
                              Last post