Hi all
This is a production issue I have outstanding for several months now.
I asked here a while ago but didn't reach a resolution. I have also
got the question up on serverfault.com, question 192927
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.
This table lays out the situation as it stands.
command actual expected ok/not ok
du -c 1.47TB used 1.47TB used ok
zfs list used 2.48TB used 1.47TB not ok
avail 206GB avail 1.2TB not ok
zpool list size 3.64TB size 3.64TB ok
used 3.31TB used 1.95TB not ok
avail 334GB avail 1.69TB not ok
Windows right Disk size 2.67TB Disk size 2.67TB ok
click disk, Used 2.47TB Used 1.47 not ok
properties free 206GB free 1.2TB not ok
Windows select total file size total file size
all files, 1.48TB 1.48TB ok
right click,
properties
Some information
- No snapshots anywhere in the pool
- Compression is off
- De-dupe is off
- ZFS pool verion is 13
- ZFS FS version is 3
- Using the "embedded" version of FreeNAS
- File was created with dd using /dev/zero as input, deleted using
rm, all as root
- File has definitely been deleted
- Windows 7 can see the folder via SMB
- 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.
Any help whatsoever would be much appreciated - something's not right here.
Many thanks
Tom
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