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Delta backup fails on SMB remote

Scheduled Pinned Locked Moved Unsolved Xen Orchestra
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  • J
    johnarvid @DeOccultist
    last edited by 13 Apr 2021, 07:42

    @deoccultist Thanks for the reply.
    I have tried all the steps that @julien-f suggested to you in the last post in your topic.
    Guess I have to wait until they have something new I should try.

    1 Reply Last reply Reply Quote 0
    • J
      johnarvid
      last edited by 16 Apr 2021, 09:58

      I have tested with a clean install of xcp-ng with the latest patches. (Just to make sure it was nothing there causing a problem)
      But the issue is still there.

      1 Reply Last reply Reply Quote 0
      • J
        johnarvid
        last edited by 27 Apr 2021, 16:19

        I can add information that using a share on windows 10 as remote causes this error.
        But using samba on linux with this config is ok:

        [global]
          workgroup = BERG
          server string = ember
          security = user
          guest ok = no
          map to guest = Bad Password
          log file = /var/log/samba/%m.log
          max log size = 50
          printcap name = /dev/null
          load printers = no
          min protocol = SMB2
          ntlm auth = yes
        
        [localNetwork]
          comment = Local Network Storage
          path = /mnt/storage/localNetwork
          browsable = yes
          read only = no
          guest ok = no
          valid users = local,john-arvid
          force group = samba
          force user = local
        
        
        1 Reply Last reply Reply Quote 1
        • O
          olivierlambert Vates 🪐 Co-Founder CEO
          last edited by 27 Apr 2021, 19:32

          So could it be permission related on Windows share? 🤔

          D 1 Reply Last reply 28 Apr 2021, 06:16 Reply Quote 0
          • D
            DeOccultist @olivierlambert
            last edited by 28 Apr 2021, 06:16

            @olivierlambert I don't think it's a permission error since the same Windows Server 2019 SMB share works fine with full back ups.

            1 Reply Last reply Reply Quote 0
            • O
              olivierlambert Vates 🪐 Co-Founder CEO
              last edited by 28 Apr 2021, 07:42

              That's because delta is using temporary files named with a dot first. Maybe something causing a problem on your share?

              V 1 Reply Last reply 11 Aug 2022, 12:07 Reply Quote 0
              • about a year later
              • V
                vbits @olivierlambert
                last edited by 11 Aug 2022, 12:07

                @olivierlambert Hi, sorry for writing here but I didn't want to open a topic just out of curiosity/doubt.
                I have been reading the backup documentation in XOA and it says that they don't advise backups with SMB if the VMs are bigger than 50GB. Why?
                I have configured 2 different backups and I noticed that with SMB is much faster than with NFS... how is it possible? but in the end as you say that it is not recommended I have left the NFS.

                0c3665fa-1cf9-412b-892b-dd26139aeee3-image.png

                D 1 Reply Last reply 11 Aug 2022, 12:22 Reply Quote 1
                • D
                  Darkbeldin Vates 🪐 Pro Support Team @vbits
                  last edited by Darkbeldin 8 Nov 2022, 14:23 11 Aug 2022, 12:22

                  @vbits Hi,
                  Mostly because NFS offer better speed than SMB with small and medium files, but depending on the storage type SMB can be necessary, for your test result difficult to say it's a full backup personally I have this kind of speed with NFS:
                  ba99ac6c-4cb7-4741-851b-f26933e010b6-image.png
                  What's the appliance behind your remote?

                  V 1 Reply Last reply 11 Aug 2022, 12:28 Reply Quote 0
                  • V
                    vbits @Darkbeldin
                    last edited by 11 Aug 2022, 12:28

                    @Darkbeldin I did a lot of tests months ago, changed the NFS from 3 to 4.1 as well and never managed to match the speed of SMB.

                    "What's the appliance behind your remote?"
                    I'm sorry, but I don't understand the question...
                    you mean what kind of external Storage for backups? truenas on a NexentaStor SC216.

                    D 1 Reply Last reply 11 Aug 2022, 12:41 Reply Quote 0
                    • D
                      Darkbeldin Vates 🪐 Pro Support Team @vbits
                      last edited by 11 Aug 2022, 12:41

                      @vbits said in Delta backup fails on SMB remote:

                      NexentaStor SC216

                      Yes that was the question 😉 If you have better speed with SMB stay with it NFS should be better in theory but sometime you have to go with real world reality.

                      1 Reply Last reply Reply Quote 2
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