[linux-lvm] strange usage stats for thin LV
Stuart D Gathman
stuart at bmsi.com
Wed Oct 31 00:30:36 UTC 2012
On Oct 31, Andres Toomsalu transmitted in part:
> I'm a bit puzzled with some thin LV usage stats - hope that someone can shed a light on this.
> lvs shows that thin_backup LV is 94% used - but df shows only 16% - where comes the difference?
df shows unused blocks in the filesystem. lvs shows unused space in the
storage pool. There is no relation between those whatsoever. A
filesystem can be on any block device, whether a thin LV or an old
fashioned disk partition, or an iSCSI volume.
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