Status of fstrim & MD-RAID

Heinz Diehl htd at fritha.org
Mon Sep 16 14:04:44 UTC 2013


On 16.09.2013, Jorge Fábregas wrote: 

> Does the mdraid subsystem relays this command to the actual SSD?

> What I've found so far is that some patches were submitted upstream
> (mdraid) for this but don't know if it made to Fedora 19.

I don't run a Fedora kernel, but took a short look into
/drivers/md/raid1.c. Looks like RAID1 in Linux supports discard, as
long as the drive itself supports it.




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