On 2011-Mar-10 05:50:53 +0800, Tom Fanning <m...@tomfanning.eu> wrote: >I have a FreeNAS 0.7.2 box, based on FreeBSD 7.3-RELEASE-p1, running >ZFS with 4x1TB SATA drives in RAIDz1. > >I appear to have lost 1TB of usable space after creating and deleting >a 1TB sparse file. This happened months ago.
AFAIR, ZFS on FreeBSD 7.x was always described as experimental. This is a known problem (OpenSolaris bug id 6792701) that was fixed in OpenSolaris onnv revision 9950:78fc41aa9bc5 which was committed to FreeBSD as r208775 in head and r208869 in 8-stable. The fix was never back-ported to 7.x and I am unable to locate any workaround. > - Exported the pool from FreeBSD, imported it on OpenIndiana 148 - >but not upgraded - same problem, much newer ZFS implementation. Can't >upgrade the pool to see if the issue goes away since for now I need a >route back to FreeBSD and I don't have spare storage. I thought that just importing a pool on a system with the bugfix would free the space. If that doesn't work, your only options are to either upgrade to FreeBSD 8.1-RELEASE or later (preferably 8.2 since there are a number of other fairly important ZFS fixes since 8.1) and upgrade your pool to v15 or rebuild your pool (via send/recv or similar). -- Peter Jeremy
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