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Sanoid/Syncoid (ZFS snapshots and replication)

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  • 3 months later...
  • Replies 77
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  • The problem is that the version of mbuffer installed by the plugin is not compatible with the new OS version (7.x). This becomes even worse because the OS provides its own mbuffer package, which will

  • foo_fighter
    foo_fighter

    @steini84: Looks like mbuffer needs to be updated for UnRaid V7:   root@NAS:/boot/config/plugins# find . -name '*mbuffer*' ./unRAID6-Sanoid/packages/mbuffer-20240107-x86_64-1_SBo.tgz

  • Hey.   I have created a pull request that does not install mbuffer and perl 5.34 (perl 5.38.2 is preinstalled on unraid 7) with the sanoid plugin on unraid 7. I don't have unraid 7 available

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hey guys, just got this error.. i did update the mbuffer package as stated up the page a little.. any help would be appreciated.. using spaceinvaderone's script to backup unraid to a dataset on truenas

INFO: Sending incremental disk10/zfsbackups/nvme_ServerBackups@autosnap_2026-01-26_21:28:39_monthly ... syncoid_server_2026-01-27:05:03:59-GMT-08:00 to [email protected]:volume1/zfsreplication/disk10_zfsbackups/nvme_ServerBackups (~ UNKNOWN):

cannot open 'disk10/zfsbackups/nvme_ServerBackups@syncoid_server_2026-01-27:05:03:59-GMT-08:00': dataset does not exist

cannot receive: failed to read from stream

CRITICAL ERROR: zfs send -I 'disk10/zfsbackups/nvme_ServerBackups'@'autosnap_2026-01-26_21:28:39_monthly' 'disk10/zfsbackups/nvme_ServerBackups'@'syncoid_server_2026-01-27:05:03:59-GMT-08:00' | pv -p -t -e -r -b -s 0 | mbuffer -q -s 128k -m 16M | ssh -S /tmp/syncoid-root1921681010-1769518559-2833748-5152 [email protected] ' mbuffer -q -s 128k -m 16M | zfs receive -s -F '"'"'volume1/zfsreplication/disk10_zfsbackups/nvme_ServerBackups'"'"' 2>&1' failed: 256

Edited by xman111

  • 2 months later...

Trying to figure out why running:

/usr/local/sbin/sanoid --verbose --configdir=/mnt/user/system/sanoid --cron

doesn't prune local snapshots according to my rules, but if I run with debug instead

/usr/local/sbin/sanoid --debug --configdir=/mnt/user/system/sanoid --cron

Everything works as expected and it prunes the snapshots. Any ideas?

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