TRIM clustering

[Pawel Jakub Dawidek]

On Thu, May 05, 2011 at 04:40:01PM +0200, Alexander Leidinger wrote:
> >>>>This brings up the question if a ZFS cache (where the contents do not
> >>>>survive a reboot) is completely TRIMmed before used (and normally
> >>>>trimmed during use)...
> >>>
> >>>It is not trimmed at all.
> >>
> >>This does not sound like the optimal solution... is there a way to
> 
> >TRIM will be more useful for regular data within a pool and most useful
> >for log devices as we do free blocks there and this is where latency is
> >critical (log devices are there to reduce latency).
> 
> Wait, does this mean that ZFS does not TRIM at all? I was
> understanding your first answer as the cache is not trimmed at all.

You asked for cache and I answered about cache, but ZFS does not TRIM in
general.

-- 
Pawel Jakub Dawidek                       http://www.wheelsystems.com
FreeBSD committer                         http://www.FreeBSD.org
Am I Evil? Yes, I Am!                     http://yomoli.com
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