On 16.09.2013, Reindl Harald wrote:
>> Does fstrim work with md-raid devices these days with Fedora
19 out of
>> the box? I would like to use 2 SSDs (in RAID-1) & wondered about trim
>> support.
> Do you have any objections against the use of
"discard"?
> Just asking..
which *is* trim
Yes. Because he also mentioned "fstrim" (see above), I mentioned
"discard", as an option when the fs is mounted (and not as a synonym
for trim).
the question was if a linux-software-raid is passing
it currently to the disc-layer or not
As far as I remember, discard has already been added late in 2011.
The source in raid1.c looks like it's fully supported, in case the
disk itself supports it.