[ZFS] Prompt, which is lost space in the ZFS pool?

[Artem Belevich]

On Mon, Jul 18, 2011 at 4:02 AM, Vladislav V. Prodan <universite at ukr.net> wrote:
> FreeBSD 8.2-STABLE #0: Tue Jun 28 14:40:44 EEST 2011 amd64
>
> # zpool list tank
> NAME   SIZE  ALLOC   FREE    CAP  DEDUP  HEALTH  ALTROOT
> tank  1,34T  1,08T   270G    80%  1.00x  ONLINE  -
>
> # zdb tank
>
> Cached configuration:
>        version: 15
>        name: 'tank'
>        state: 0
>        txg: 3933453
>        pool_guid: 15415411259239146062
>        hostid: 814717323
>        hostname: 'second.xxx.com'
>        vdev_tree:
>            type: 'root'
>            id: 0
>            guid: 15415411259239146062
>            children[0]:
>                type: 'mirror'
>                id: 0
>                guid: 16020562126957161505
>                whole_disk: 0
>                metaslab_array: 23
>                metaslab_shift: 33
>                ashift: 9
>                asize: 1483117166592
>                is_log: 0
>                children[0]:
>                    type: 'disk'
>                    id: 0
>                    guid: 11217068100198816386
>                    path: '/dev/gpt/disk0'
>                    whole_disk: 0
>                    DTL: 120
>                children[1]:
>                    type: 'disk'
>                    id: 1
>                    guid: 4665162630340381592
>                    path: '/dev/gpt/disk1'
>                    whole_disk: 0
>                    DTL: 118
>
> MOS Configuration:
>        version: 15
>        name: 'tank'
>        state: 0
>        txg: 3933453
>        pool_guid: 15415411259239146062
>        hostid: 814717323
>        hostname: 'second.xxx.com'
>        vdev_tree:
>            type: 'root'
>            id: 0
>            guid: 15415411259239146062
>            children[0]:
>                type: 'mirror'
>                id: 0
>                guid: 16020562126957161505
>                whole_disk: 0
>                metaslab_array: 23
>                metaslab_shift: 33
>                ashift: 9
>                asize: 1483117166592
>                is_log: 0
>                children[0]:
>                    type: 'disk'
>                    id: 0
>                    guid: 11217068100198816386
>                    path: '/dev/gpt/disk0'
>                    whole_disk: 0
>                    DTL: 120
>                children[1]:
>                    type: 'disk'
>                    id: 1
>                    guid: 4665162630340381592
>                    path: '/dev/gpt/disk1'
>                    whole_disk: 0
>                    DTL: 118
>
> #df -h
> Filesystem                  Size    Used   Avail Capacity  Mounted on
> tank                        249G    846M    249G     0%    /
> devfs                       1.0k    1.0k      0B   100%    /dev
> tank/backup                 646G    397G    249G    61%    /backup
> tank/backup/router          256G    7.9G    249G     3%    /backup/router
> tank/backup/third-server    626G    377G    249G    60% /backup/third-server
> tank/home                   252G    3.2G    249G     1%    /home
> tank/tmp                    249G     28M    249G     0%    /tmp
> tank/usr                    251G    2.5G    249G     1%    /usr
> tank/usr/home               249G     29k    249G     0%    /usr/home
> tank/usr/ports              250G    1.1G    249G     0%    /usr/ports
> tank/usr/src                249G    314M    249G     0%    /usr/src
> tank/var                    249G    9.6M    249G     0%    /var
> tank/var/crash              249G     21k    249G     0%    /var/crash
> tank/var/db                 249G    158M    249G     0%    /var/db
> tank/mysql                  250G    1.1G    249G     0%    /var/db/mysql
> tank/mysql/ibdata           252G    3.2G    249G     1% /var/db/mysql/ibdata
> tank/mysql/iblogs           249G     10M    249G     0% /var/db/mysql/iblogs
> tank/var/log                249G    258M    249G     0%    /var/log
> tank/var/mail               249G    734k    249G     0%    /var/mail
> tank/var/run                249G    106k    249G     0%    /var/run
> tank/var/tmp                249G     14M    249G     0%    /var/tmp
> tank/www                    270G     21G    249G     8%    /www
>
> zfs list-t snapshot shows the place occupied by no more than 30GB

Try "zfs list -r -tall -o space tankl". It should give you detailed
space usage for all filesystems and snapshots.

>
> Where lost about 600GB of free space?
...
> tank/backup                 646G    397G    249G    61%    /backup
> tank/backup/third-server    626G    377G    249G    60% /backup/third-server

Perhaps here ^^^^^?

--Artem

>
> --
> Vladislav V. Prodan
> VVP24-UANIC
> +380[67]4584408
> +380[99]4060508
> vlad11 at jabber.ru
> _______________________________________________
> freebsd-fs at freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-fs
> To unsubscribe, send any mail to "freebsd-fs-unsubscribe at freebsd.org"
>