On Wed, 12 Oct 2011 00:28:03 +0200 "Stefan G. Weichinger" <li...@xunil.at> wrote:
> Am 12.10.2011 00:05, schrieb Alan McKinnon: > > > Yes, you misunderstand how fstrim works. It's not up to you to say > > what it does exactly, it's up to the drive firmware and possibly > > the kernel. It's actually fully described in the man page right > > there in the part for option -v :-) > > So it only tells me "something"? No, it's giving you a fact (and slightly misrepresenting it in the output). You asked the drive firmware for a favour - to please check if anything can be discarded and if so to discard it. <cue Mafia voice a la GodFather> The firmware checked that it *could* discard X bytes and then figured well, maybe it will, maybe it won't, maybe it'll do it on it's own good time, but what the heck - tell the user anyway how many bytes X is. Maybe that'll make the user happy so he'll stfu and go away...... The command leads you to believe the discard was actually done, but that's not necessarily true :-) It's probably a case of the drive knows much better than you what it should do. -- Alan McKinnnon alan.mckin...@gmail.com
