Hi all,
Another issue users have pointed out with ZFS: now, when their ZFS homedirs are
automounted, the total size shown is not always correct.
All the homedirs have a 10GB quota, which means that is supposed to be the
total size shown. However, when there are snapshots on those FS, and they are
automounted via NFS, the total size is the actual quota size minus the space
used up by the snapshots, which is *very* confusing.
Let's see an example, a homedir with a 10 GB quota, and a snapshot using up 2
GB:
$ /usr/sbin/zfs list -r home/testcc
NAME USED AVAIL REFER MOUNTPOINT
home/testcc 2,43G 7,57G 444M /export/home/users/testcc
home/[EMAIL PROTECTED] 2,00G - 2,43G -
If I check the size locally, on the automounted homedir, using df, I get:
$ df -h /home/users/testcc
Système de fichiers taille utilisé dispo capacité Monté sur
home/testcc 10G 444M 7,6G 6% /export/home/users/testcc
If I use the exact same command on a system with the exact same automount
config, whether Solaris or RHEL, I get:
$ df -h /home/users/testcc
Sys. de fich. Tail. Occ. Disp. %Occ. Monté sur
dota-cc-fichier:/export/home/users/testcc
8,0G 445M 7,6G 6% /home/users/testcc
See2 ZGB of difference (I'll pass on the 1MB difference on use).
Even locally, it is incoherent:
$ df -h |grep test
home/testcc 10G 444M 7,6G 6% /export/home/users/testcc
/export/home/users/testcc 8,0G 444M 7,6G 6% /home/users/testcc
What is the reason of such a difference?
Laurent
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