[linux-lvm] Questions about issue_discards
james.downs at egontech.com
Fri Dec 7 01:29:58 UTC 2012
On Dec 6, 2012, at 2:25 PM, CJ Kucera wrote:
> (obviously) issue discards to storage which happens to support it. Is
> there a way of querying block devices to find out if they support the
hdparm -I /dev/DEVICE
is what you're looking for. SSDs support different methods of supporting discards, mostly TRIM.
> 2) Would a change to the issue_discards parameter be picked up
> automatically by the running kernel? The lvm.conf manpage mentions that
It should be. You can do an lvm dumpconfig to check.
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