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 > feature? 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. Cheers, -j _______________________________________________ linux-lvm mailing list linux-lvm@redhat.com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
