Backup & Snapshot Fail - SR_BACKEND_FAILURE_82

Nuno Silva

I'm trying to make a backup have errors same with snapshots!

error message

xe vm-snapshot uuid=1aca1fb1-885b-c0e7-8551-df8fede816e6  new-name-label=testvmsnapshot
Error code: SR_BACKEND_FAILURE_82
Error parameters: , Failed to snapshot VDI [opterr=['MAP_DUPLICATE_KEY', 'VDI', 'sm_config', 'OpaqueRef:05ecfcdd-c5bd-48b7-b054-03ba39ecfaab', 'paused']],

vm status

xe diagnostic-vm-status uuid=1aca1fb1-885b-c0e7-8551-df8fede816e6
uuid ( RO)              : 1aca1fb1-885b-c0e7-8551-df8fede816e6
        name-label ( RW): SRVIMBFEWW02
       power-state ( RO): running
    possible-hosts ( RO): 97ef02c2-32b0-40cf-8449-ba350a6738a2; b98e0880-96ce-4ea0-b56c-2a96799168fa

Checking to see whether disks are attachable

uuid ( RO)            : 72f583c0-c849-cb6b-d96c-64de0a4f80a3
        vdi-uuid ( RO): <not in database>
           empty ( RO): true
          device ( RO): xvdd
      userdevice ( RW): 3
            mode ( RW): RO
            type ( RW): CD
      attachable ( RO): true
    storage-lock ( RO): false


uuid ( RO)            : 806829ac-8414-a0ad-c349-ff23cb4a7097
        vdi-uuid ( RO): 151f232f-79cc-408d-8079-c47d33824ab7
           empty ( RO): false
          device ( RO): xvda
      userdevice ( RW): 0
            mode ( RW): RW
            type ( RW): Disk
      attachable ( RO): true
    storage-lock ( RO): false

Checking to see whether VM can boot on each host

xcp02-edf    : OK
    xcp01-edf: OK

Disk Status

xe diagnostic-vm-status uuid=1aca1fb1-885b-c0e7-8551-df8fede816e6
uuid ( RO)              : 1aca1fb1-885b-c0e7-8551-df8fede816e6
        name-label ( RW): SRVIMBFEWW02
       power-state ( RO): running
    possible-hosts ( RO): 97ef02c2-32b0-40cf-8449-ba350a6738a2; b98e0880-96ce-4ea0-b56c-2a96799168fa

Checking to see whether disks are attachable

uuid ( RO)            : 72f583c0-c849-cb6b-d96c-64de0a4f80a3
        vdi-uuid ( RO): <not in database>
           empty ( RO): true
          device ( RO): xvdd
      userdevice ( RW): 3
            mode ( RW): RO
            type ( RW): CD
      attachable ( RO): true
    storage-lock ( RO): false


uuid ( RO)            : 806829ac-8414-a0ad-c349-ff23cb4a7097
        vdi-uuid ( RO): 151f232f-79cc-408d-8079-c47d33824ab7
           empty ( RO): false
          device ( RO): xvda
      userdevice ( RW): 0
            mode ( RW): RW
            type ( RW): Disk
      attachable ( RO): true
    storage-lock ( RO): false

Checking to see whether VM can boot on each host

xcp02-edf    : OK
    xcp01-edf: OK

Any Sugestion? Any help?
Thanks in advanced.

Danp

@nuno-silva See this thread for a discussion on how the fix the issue with sm_config.

If that doesn't help, then you'll want to provide further details on your environment, ie:

XCP version and patch level
Details on your SR

Nuno Silva

@danp said in Backup & Snapshot Fail - SR_BACKEND_FAILURE_82:

XCP version and patch level

Hi @Danp i'm already try to solve problem based on url that you refer without success

XCP 8.2 full updated

the disk is where and after 8 hours don't desapears

Danp

@nuno-silva I'm not sure that is the same issue. Have you checked the logs to see if the coalesce is aborting for some reason?

Nuno Silva

Hi,

2 to 3 hours after the migration of VM to master coalesce disappeared.

Thanks for help