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From: Lorenzo Perone <lopez.on.the.lists@yellowspace.net>
To: FreeBSD Stable Mailing List <freebsd-stable@freebsd.org>
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Date: Tue, 9 Jun 2009 15:54:17 +0200
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Subject: ZFS list -t snapshot USAGE column
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Hi there,

just wondering, since the ZFS v13 update (to be precise, 7.2-STABLE  
FreeBSD 7.2-STABLE #11: Wed Jun  3 23:11:29 CEST 2009) why the USAGE  
column in a zfs list -t snapshot is not showing anymore the space used  
by the snapshot? I made those snapshots with zfs snapshot -r.

They're almost all showing a USAGE of 0K, albeit there have been  
changes to the dataset since that snapshot.

Regards,

Lorenzo