Hi,
I'm investigating SSD performance on Linux, in particular for RAID
devices.
As I understand it—and please correct me if I'm wrong—currently software
RAID does not pass through TRIM to the underlying devices. TRIM is
essential for the continued high performance of SSDs, which otherwise
degrade over time.
I don't think there would be any harm in this command being passed through
to underlying devices if they don't support it (they would just ignore
it), and if they do it would make high-performance software RAID of SSDs a
possibility.
Is this something that's in the works?
Many thanks,
--
Tom De Mulder <tdm27@xxxxxxxxx> - Cambridge University Computing Service
+44 1223 3 31843 - New Museums Site, Pembroke Street, Cambridge CB2 3QH
-> 28/06/2011 : The Moon is Waning Crescent (22% of Full)
