solarg writes:
> >> # zfs list
> >> NAME                                           USED  AVAIL  REFER 
> >> MOUNTPOINT
> >> rpool/zones/catalogue2/ROOT/zbe               4.49G  17.9G  7.47G  legacy
> >> rpool/zones/catalogue3/ROOT/zbe                149M  17.9G  6.80G  legacy
> >> rpool/zones/test-drupal/ROOT/zbe               511M  17.9G  5.21G  legacy
> >>
> >> on another os2008.11 machine, i created a new zone, and don't notice 
> >> these high values:
> >> # zfs list
> >> NAME                               USED  AVAIL  REFER  MOUNTPOINT
> >> rpool/export/catalogue4           4.07M  16.1G    21K  /export/catalogue4
> >> rpool/export/catalogue4/ROOT      4.05M  16.1G    18K  legacy
> >> rpool/export/catalogue4/ROOT/zbe  4.03M  16.1G   235M  legacy
> >>
> >> what is the meaning of REFER? can i gain more space?

"REFER" is documented on the zfs(1M) man page.  It's the amount of
space accessible by the dataset and some or all of it may be shared
with another dataset.  If you're interested in the amount of disk
space used, then the "USED" column is what you want.

At a guess, the difference between these two machines is that
'catalogue4' was likely created as a sparse-root zone, while
'catalogue2' was created as a whole-root zone.  The clones of that
whole-root zone ('catalogue3' and 'test-drupal') use little disk
space, as most of it is 'referred' from 'catalogue2'.

This part of the output shows the relationships:

> rpool/zones/catalogue2/ROOT/zbe                            4.52G  7.47G 
>   rpool/zones/catalogue/ROOT/z...@catalogue2_snap
> rpool/zones/catalogue2/ROOT/z...@test_drupal_snap            358M  4.75G  -
> rpool/zones/catalogue2/ROOT/z...@catalogue3_snap            85.2M  7.47G  -
[...]
> rpool/zones/catalogue3/ROOT/zbe                             149M  6.66G 
>   rpool/zones/catalogue2/ROOT/z...@catalogue3_snap
[...]
> rpool/zones/test-drupal/ROOT/zbe                            511M  5.21G 
>   rpool/zones/catalogue2/ROOT/z...@test_drupal_snap

-- 
James Carlson, Solaris Networking              <james.d.carl...@sun.com>
Sun Microsystems / 35 Network Drive        71.232W   Vox +1 781 442 2084
MS UBUR02-212 / Burlington MA 01803-2757   42.496N   Fax +1 781 442 1677
_______________________________________________
zones-discuss mailing list
zones-discuss@opensolaris.org

Reply via email to