On Mar 19, 2013, at 3:06 AM, David Sterba <dste...@suse.cz> wrote: > On Mon, Mar 18, 2013 at 09:18:28PM -0600, Chris Murphy wrote: >> I'm not finding a reference to "secure erase trim". In any case I >> wouldn't expect it to differ from trim. > > There's a 'secure discard' trim command in linux, > > http://lkml.indiana.edu/hypermail/linux/kernel/1007.1/02355.html
"Secure discard is the same as discard except that all copies of the discarded sectors (perhaps created by garbage collection) must also be erased." The erase mechanism seems to be the same "data set management" trim in ACS-2 in either case. Chris Murphy-- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
