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    Should it take 10 hours to export 32GBs of VMs in XenServer?

    Scheduled Pinned Locked Moved IT Discussion
    xenserver
    14 Posts 9 Posters 2.1k Views
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    • momurdaM
      momurda
      last edited by

      This is still a problem on my 7.1 installation. Just tried exporting a 100GB vm, max speed 17MB/s, avg speed 15MB/s.
      Maybe it is because i upgraded from 6.1>6.2>6.5>7.1 over the last year or so. I havent tried export in a long time as it isnt something we need to do very often.

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      • black3dynamiteB
        black3dynamite
        last edited by

        You can try exporting directly from XenServer but I believe you can only export in XVA format when done in CLI.

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        • guyinpvG
          guyinpv
          last edited by

          I just don't know why the backup that is 8GB was done in a number of minutes but the one that is 17GB took 9 hours. That's like an exponential increase!

          I plan on upgrading XS which is why I'm exporting the VMs in the first place. I hope the new file system layout of XS helps fix this.

          1 Reply Last reply Reply Quote 0
          • BRRABillB
            BRRABill
            last edited by

            You know, I haven't really looked back into it, but I noticed that my servers just don't have the proper speed at all in XS.

            I wonder if it is some sort of network driver issue.

            Have any of you ever tested throughput on your XS VMs? I haven't had a chance to do it, but it might be interesting.

            travisdh1T 1 Reply Last reply Reply Quote 0
            • travisdh1T
              travisdh1 @BRRABill
              last edited by

              @BRRABill I've run a number of iperf tests, and get the 850 to 920 mbps I'd expect from a gigabit network. There is something really wrong with exports in XenServer 6.X

              BRRABillB 1 Reply Last reply Reply Quote 0
              • BRRABillB
                BRRABill @travisdh1
                last edited by

                @travisdh1

                Yeah I just never circled back around to it.

                I have to put that on my to-do list.

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                • momurdaM
                  momurda
                  last edited by

                  I get great bandwidth for all XS ops except import/export. Migrating vms/storage is almost always 100+MBps

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                  • DanpD
                    Danp
                    last edited by

                    The import / export functionality is supposed to be greatly improved in XS 7.1.

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                    • DustinB3403D
                      DustinB3403
                      last edited by

                      10 hours for 32gb . . . . seems excessive even for the poorer performance of 6.5.

                      scottalanmillerS 1 Reply Last reply Reply Quote 0
                      • scottalanmillerS
                        scottalanmiller @DustinB3403
                        last edited by

                        @DustinB3403 said in Should it take 10 hours to export 32GBs of VMs in XenServer?:

                        10 hours for 32gb . . . . seems excessive even for the poorer performance of 6.5.

                        Good morning, where have you been?

                        DustinB3403D 1 Reply Last reply Reply Quote 0
                        • DustinB3403D
                          DustinB3403 @scottalanmiller
                          last edited by

                          @scottalanmiller New job has had me busy.

                          Reid CooperR 1 Reply Last reply Reply Quote 1
                          • Reid CooperR
                            Reid Cooper @DustinB3403
                            last edited by

                            @DustinB3403 said in Should it take 10 hours to export 32GBs of VMs in XenServer?:

                            @scottalanmiller New job has had me busy.

                            Likely story.

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