[linux-lvm] strange usage stats for thin LV

Zdenek Kabelac zkabelac at redhat.com
Fri Nov 2 11:20:27 UTC 2012


Dne 2.11.2012 11:46, Andres Toomsalu napsal(a):
> Thanks a lot for a detailed explanation - now everything fits into places :)
>
> Some answers:
>
> 1) Filesystem in use is ext4 at all cases
> 2) Im not using discard option as Im not very aware how to use it  - is it a filesystem mount option for fstab?
> 3) OS is CentOS 6.3 with RHEL OpenVZ patched kernel (2.6.32-042stab061.2 #1 SMP Fri Aug 24 09:07:21 MSK 2012 x86_64 x86_64 x86_64 GNU/Linux)
>

So check for  'fstrim' command - it's usage is quite simple, and should be 
already pretty matured tool.

i.e. you could run it once a week in cron.

Zdenek





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