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no Data in Pool but is not empty

Posted: 30 Oct 2015 17:37
by Pappmann
Hi,

i have a ZFS Pool named "Media" that is showing healthy and its mounted but no Data inside.

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  pool: Media
 state: ONLINE
  scan: scrub repaired 0 in 5h20m with 0 errors on Fri Oct 23 23:34:34 2015
config:

	NAME        STATE     READ WRITE CKSUM
	Media       ONLINE       0     0     0
	  ada1      ONLINE       0     0     0
	  ada0      ONLINE       0     0     0

errors: No known data errors
GUI is showing only 441G avalable Size

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Filesystem                     Size    Used   Avail Capacity  Mounted on
Media                          441G    100M    441G     0%    /mnt/Media
but "zpool list" shows the real Size and 2.2T used Space:

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 nas: ~# zpool list
NAME    SIZE  ALLOC   FREE  EXPANDSZ   FRAG    CAP  DEDUP  HEALTH  ALTROOT
Media   2.72T 2.20T   528G     -        5%     81%  1.00x   ONLINE     /
Why that differences? How i can have back access to my data?

Im using nas4free version 10.2.0.2, but i had the same problem on 9.x before.

Re: no Data in Pool but is not empty

Posted: 30 Oct 2015 20:04
by daoyama
Pappmann wrote:Why that differences? How i can have back access to my data?
Check volume and snapshot by:

# zfs list -t all

Re: no Data in Pool but is not empty

Posted: 31 Oct 2015 02:00
by Pappmann
OK, there are alot of of old snapshots

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Media                       2.20T   441G  99.8M  /mnt/Media
Media@auto-20130228-080000      0      -  2.19T  -
Media@auto-20130301-080000      0      -  2.19T  -
Media@auto-20130302-080000      0      -  2.19T  -
Media@auto-20130303-080000      0      -  2.19T  -
Media@auto-20130304-080000      0      -  2.19T  -
Media@auto-20130305-080000      0      -  2.19T  -
Media@auto-20130306-080000      0      -  2.19T  -
Media@auto-20130307-080000    88K      -  2.20T  -
Media@auto-20130308-080000      0      -  2.20T  -
Media@auto-20130309-080000      0      -  2.20T  -
Media@auto-20130310-080000      0      -  2.20T  -
Media@auto-20130311-080000      0      -  2.20T  -
Media@auto-20130312-080000      0      -  2.20T  -
Media@auto-20130313-080000      0      -  2.20T  -
Media@auto-20130314-080000     8K      -  2.20T  -
Media@auto-20130315-080000      0      -  2.20T  -
Media@auto-20130316-080000      0      -  2.20T  -
Media@auto-20130317-080000      0      -  2.20T  -
Media@auto-20130318-080000      0      -  2.20T  -
Media@auto-20130319-080000      0      -  2.20T  -
Media@auto-20130320-080000      0      -  2.20T  -
Media@auto-20130321-080000      0      -  2.20T  -
Media@auto-20130322-080000      0      -  2.20T  -
Media@auto-20130323-080000      0      -  2.20T  -
Media@auto-20130324-080000      0      -  2.20T  -
Media@auto-20130325-080000      0      -  2.20T  -
Media@auto-20130326-080000      0      -  2.20T  -
Media@auto-20130327-080000      0      -  2.20T  -
Media@auto-20130328-080000      0      -  2.20T  -
Media@auto-20130329-080000      0      -  2.20T  -
Media@auto-20130330-080000      0      -  2.20T  -
Media@auto-20130608-080000    80K      -  2.20T  -
Media@auto-20130810-080000      0      -  2.20T  -
Media@auto-20130811-080000      0      -  2.20T  -
Media@auto-20130812-080000      0      -  2.20T  -
Media@auto-20130813-080000      0      -  2.20T  -
Media@auto-20130814-080000      0      -  2.20T  -
Media@auto-20130815-080000      0      -  2.20T  -
Media@auto-20130816-080000      0      -  2.20T  -
Media@auto-20130817-080000      0      -  2.20T  -
Media@auto-20130818-080000      0      -  2.20T  -
Media@auto-20130819-080000      0      -  2.20T  -
Media@auto-20130820-080000      0      -  2.20T  -
Media@auto-20130821-080000      0      -  2.20T  -
Media@auto-20130822-080000      0      -  2.20T  -
Media@auto-20130823-080000      0      -  2.20T  -
Media@auto-20130824-080000      0      -  2.20T  -
Media@auto-20130825-080000      0      -  2.20T  -
Media@auto-20130826-080000      0      -  2.20T  -
Media@auto-20130827-080000      0      -  2.20T  -
Media@auto-20130828-080000      0      -  2.20T  -
Media@auto-20130829-080000      0      -  2.20T  -
Media@auto-20130830-080000      0      -  2.20T  -
Media@auto-20130831-080000      0      -  2.20T  -
Media@auto-20130901-080000      0      -  2.20T  -
Media@auto-20130902-080000      0      -  2.20T  -
Media@auto-20130903-080000      0      -  2.20T  -
Media@auto-20130904-080000      0      -  2.20T  -
Media@auto-20130905-080000      0      -  2.20T  -
Media@auto-20130906-080000      0      -  2.20T  -
Media@auto-20130907-080000      0      -  2.20T  -
Media@auto-20130908-080000      0      -  2.20T  -
Media@auto-20130909-080000      0      -  2.20T  -

Re: no Data in Pool but is not empty

Posted: 02 Nov 2015 10:51
by b0ssman
this means that you deleted that data.

the data should still be accessible in the snapshots

snapshots can be accessed from the .zfs/snapshot directory in the dataset