ZFS thin provision - Drives are using complete HDD Space

bitblue.lab

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Oct 7, 2015
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I am migrating some virtual machines in new server with ZFS Storage and Enabled thin provision...after backups restore they use same space in Pool ( is this normal because I am restoring from backups or a problem ) because as I know thin provision should take space what as user adds files.
 
Hi,
this is not so easy to explain.
zfs has its own space management and it is a little bit tricky.
the real used storage you get if you call zpool list <pool>
but there are no information about how much a zvol used.
when you call zfs list and look on refer you get ca. the used space on the disk