mirror of https://github.com/jimsalterjrs/sanoid
59 lines
1.8 KiB
Markdown
59 lines
1.8 KiB
Markdown
sanoid
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======
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Sanoid is a policy-driven snapshot management tool for ZFS filesystems.
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You can use Sanoid to create, automatically thin, and monitor snapshots and pool health from a single eminently human-readable TOML config file at /etc/sanoid/sanoid.conf. A typical Sanoid system would have a single cron job:
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```
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* * * * * /usr/local/bin/sanoid --cron
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```
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And its /etc/sanoid/sanoid.conf might look something like this:
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```
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[data/home]
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use_template = production
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[data/images/win2012]
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use_template = production
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[data/images/win7-spice]
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use_template = production
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hourly = 4
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#############################
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# templates below this line #
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#############################
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[template_production]
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hourly = 36
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daily = 30
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monthly = 3
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yearly = 0
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autosnap = yes
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autoprune = yes
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```
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Which would be enough to tell sanoid to take and keep 36 hourly snapshots, 30 dailies, 3 monthlies, and no yearlies. Except in the case of data/images/win7-spice, which only keeps 4 hourlies for whatever reason.
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Sanoid also includes a replication tool, syncoid, which facilitates the asynchronous incremental replication of ZFS filesystems. A typical syncoid command might look like this:
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```
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syncoid data/images/vm backup/images/vm
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```
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Which would replicate the specified ZFS filesystem (aka dataset) from the data pool to the backup pool on the local system, or
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```
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syncoid data/images/vm root@remotehost:backup/images/vm
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```
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Which would push-replicate the specified ZFS filesystem from the local host to remotehost over an SSH tunnel, or
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```
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syncoid root@remotehost:data/images/vm backup/images/vm
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```
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Which would pull-replicate the filesystem from the remote host to the local system over an SSH tunnel.
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Syncoid uses and supports mbuffer buffering, lzop compression, and pv progress bars if the utilities are available on the systems used.
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