[lustre-discuss] different quota counts between different Lustre versions?

[Thomas Roth]

Hi all,

we have one Lustre 2.5.3 with ZFS 0.6.3,  and another one with Lustre 2.10.3 and ZFS 0.7.6
I have copied a number of directories from old to new, and noticed that the number of inodes given by
'lfs quota' differ.

Extreme example is a user with just one file:

# lfs quota -h -u USER /lustre/old

Disk quotas for usr USER:
     Filesystem    used   quota   limit   grace   files   quota   limit   grace
    /lustre/old    133k      0k      0k       -       1       0       0       -


# lfs quota -h -u USER /lustre/new

Disk quotas for usr USER:
     Filesystem    used   quota   limit   grace   files   quota   limit   grace
   /lustre/new      60k      0k      0k       -       2       0       0       -



(Size difference is easy: it is a text file, and only the OSS in the 'new' FS have compression enabled.)


I suppose some counting scheme has changed between those Lustre versions?

However, some copied directories have much larger count-differences, but some have identical numbers.


Cheers,
Thomas

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Thomas Roth
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