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#1 2021-08-25 09:22:36

davobo
Member
Registered: 2021-08-25
Posts: 1

Error while creating initial backup on locally mounted NFS storage

Hi all,

I have mounted an NFS4 server on esxi to be used as a local backup drive and started a job to do cold backup of all VMs.

Few of the VMs were backed up, but then in the middle of the process I get following error:

2021-08-24T17:09:53 | Error code 525 at file dedup-in.c, line 525 | Error description: can't rename temp block: /vmfs/volumes/Backup/./data/3835324099926927.tmp, No such device or address
2021-08-24T17:09:53 | Error code 645 at file dedup-in.c, line 645 | Error description: 793387 lines in .map file is different to 1436550 detected blocks
2021-08-25T08:51:00 | Error code 4138 at file common.c, line 4138 | Error description: could not find .blocklog_dis file, is_first_backup(0)
2021-08-25T08:51:00 | Error code 3190 at file xsibackup.c, line 3190 | Error description: something went wrong grabbing .blocklog data, error: No such file or directory
2021-08-25T08:51:49 | Error code 4138 at file common.c, line 4138 | Error description: could not find .blocklog_dis file, is_first_backup(0)
2021-08-25T08:51:49 | Error code 3190 at file xsibackup.c, line 3190 | Error description: something went wrong grabbing .blocklog data, error: No such file or directory

Also I cannot continue the backup. Since one of the VMs has more than 1.3Tb of data I don't want to start it all over again.

What could be the issue?
Could it be solved and if it can, can I trust the backup integrity ?

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#2 2021-08-26 16:47:21

admin
Administrator
Registered: 2017-04-21
Posts: 1,821

Re: Error while creating initial backup on locally mounted NFS storage

Your NFS volume seems to have disconnected somehow. You need a stable remote FS to perform backups.
If your datastore is not reliable there's nothing any software can do to help that.
Revise cables, NFS parameters, perform some big file copy and check its integrity...

Also, please, do make sure that you store deduplicated backups to repositories in subfolders, never use the root of any FS or volume as the repository root.

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