Do many of the SATA controllers support TRIM? (i.e. pass
the TRIM command to the SSD). Does anyone know
anything about dm/md supporting TRIM? (I'm thinking LVM
and software RAID tools).
As far as I know, there's nothing to be done in any SATA controller
driver to support TRIM. It's just up to the drive whether it
understands
the command.
That's the rub. I've heard that many drivers don't understand
the command. So I'm curious what drivers do and any experience
anyone might have.
Note the distinction between "drive" and "driver"... I agree with
what Matthew says.
Oops - sorry I missed "drive" vs. "driver".
I've heard from other places that drivers need to pass along
the TRIM command to the drives but that many drivers don't
do this. I assume that the best way to determine if this is
accurate is to test the controller drivers or ping the maintainers.
Thanks!
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