Re: zfs destroy snapshot doesn't free space
On 2010-Aug-13 16:51:24 +0200, Andreas Mayer andimaye...@gmail.com wrote: If I take a snapshot again, this snapshot also references 623G. What can I do to reclaim this space? I have to do this before I can set a quota (I have set quotas for all other file systems now :) ). Does a reboot resolve the problem? -- Peter Jeremy pgpbzS5ldbnfc.pgp Description: PGP signature
Re: zfs destroy snapshot doesn't free space
Hi, what do you see when you cd to /var/.zfs? There should be a snapshot directory there. Is there any contents in it? Regards Christian Walther PS: Sorry for the repost, forgot to hit reply all (and fixed a bug, btw. It should be /var/.zfs insead of .zsh, of course.) ___ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to freebsd-stable-unsubscr...@freebsd.org
Re: zfs destroy snapshot doesn't free space
On Fri, Aug 13, 2010 at 04:51:24PM +0200, Andreas Mayer wrote: I have a problem with my ZFS storage: some application filled a certain directory in /var completely up with data and the server runs a script which takes a snapshot every night. So, ~650 GB of the available 700 GB were filled up. Then I destroyed the last two snapshots (each referencing about 300 GB) and the files on the live system so that now there are no snapshots for /var and du -hs /var reports a size of 2 GB. However, zfs still reports that 623G are referenced: # zfs list rpool/var NAMEUSED AVAIL REFER MOUNTPOINT rpool/var 623G 48.4G 623G /var # zfs get all rpool/var ... rpool/var usedbysnapshots 0 - rpool/var usedbydataset 623G - rpool/var usedbychildren0 - rpool/var usedbyrefreservation 0 - ... If I take a snapshot again, this snapshot also references 623G. What can I do to reclaim this space? I have to do this before I can set a quota (I have set quotas for all other file systems now :) ). Can you provide uname -a output please? Thanks. -- | Jeremy Chadwick j...@parodius.com | | Parodius Networking http://www.parodius.com/ | | UNIX Systems Administrator Mountain View, CA, USA | | Making life hard for others since 1977. PGP: 4BD6C0CB | ___ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to freebsd-stable-unsubscr...@freebsd.org
Re: zfs destroy snapshot doesn't free space
$ uname -a FreeBSD wurd.dev001.net 8.1-RELEASE FreeBSD 8.1-RELEASE #0: Mon Jul 19 02:36:49 UTC 2010 r...@mason.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC amd64 2010/8/13 Malcolm Waltz mwa...@pacific.edu: Have you tried zfs list -t all ? I have, it produces this output: $ zfs list -t all NAME USED AVAIL REFER MOUNTPOINT rpool 637G 48,4G18K none rpool/root 245M 1,76G 209M legacy ... rpool/root backup snapshots ... rpool/srv 5,31G 48,4G 4,94G /srv ... rpool/srv backup snapshots ... rpool/tmp 90,2M 1,91G 90,2M /tmp ... rpool/tmp backup snapshots ... rpool/usr 7,91G 48,4G 6,83G /usr ... rpool/usr backup snapshots ... rpool/var 623G 48,4G 623G /var -- Best regards Andreas ___ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to freebsd-stable-unsubscr...@freebsd.org
Re: zfs destroy snapshot doesn't free space
On 08/13/2010 20:02, Andreas Mayer wrote: $ uname -a FreeBSD wurd.dev001.net 8.1-RELEASE FreeBSD 8.1-RELEASE #0: Mon Jul 19 02:36:49 UTC 2010 r...@mason.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC amd64 2010/8/13 Malcolm Waltz mwa...@pacific.edu: Have you tried zfs list -t all ? I have, it produces this output: $ zfs list -t all NAME USED AVAIL REFER MOUNTPOINT rpool 637G 48,4G18K none rpool/root 245M 1,76G 209M legacy .. rpool/root backup snapshots ... rpool/srv 5,31G 48,4G 4,94G /srv .. rpool/srv backup snapshots ... rpool/tmp 90,2M 1,91G 90,2M /tmp .. rpool/tmp backup snapshots ... rpool/usr 7,91G 48,4G 6,83G /usr .. rpool/usr backup snapshots ... rpool/var 623G 48,4G 623G /var Just to be sure that a process is not still hogging space: fstat |grep /var Henri ___ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to freebsd-stable-unsubscr...@freebsd.org
Re: zfs destroy snapshot doesn't free space
In the meanwhile, some Web applications (they don't even access /var but only /srv) don't work anymore because of very strange file not accessible and file not found errors although I haven't changed anything and the file system isn't full or something like that. I think the whole pool or serveral file systems are corrupted... can that be true or am I panicking? Is there any chance that I can repair it without reinstalling the whole system? 2010/8/13 Andreas Mayer andimaye...@gmail.com: There are only the normal services as they always run and access to /var. I don't think that they are hogging space as I rebooted and tried to disable them, but the REFER value in zlist stays 623 GB. ___ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to freebsd-stable-unsubscr...@freebsd.org
