I am trying to understand how "refreservation" works with snapshots.
If I have a 100G zfs pool........ I have 4 20G volume groups in that pool. refreservation = 20G on all volume groups. Now when I want to do a snapshot will this snapshot need 20G + the amount changed (REFER)? If not I get a "out of space"......... How does refreservation relate to snapshots? Thanks
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