Am 08.07.2018 um 20:28 schrieb Weedy: > On 8 July 2018 at 18:23, Wols Lists <antlists@xxxxxxxxxxxxxxx> wrote: >> The problem with this is that (a) MD has no idea which bits of the disk >> are in use and which are not, and (b) just copying the bits that are in >> use will leave the unused bits in an unsync'd state, which will then >> moan blue murder on a check. >> >> It would make sense to prioritise that used stuff, but you do need to >> copy everything. If, however, we could get TRIM to actually zero the >> disk, that might well speed things up. It will need a lot of thinking >> through, though. It's a lot trickier than it sounds. > > It counts unallocated blocks?!?!?! whyyyyyyyyyy because it's just a block-layer with no knowledge about the filesystem on top -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
