On Tue, 3 Aug 2010 18:29:50 +1000, Neil Brown <neilb@xxxxxxx> wrote: > On Tue, 3 Aug 2010 13:46:58 +0600 > Roman Mamedov <roman@xxxxxxxx> wrote: > >> On Tue, 3 Aug 2010 16:14:56 +1000 >> Neil Brown <neilb@xxxxxxx> wrote: >> >> > > Yes, you can binary copy the drive like that, that's what I usually >> > > do. >> > >> > Of course you need to be sure that the old and new devices are exactly >> > the >> > same size. Normally they will but it is worth double checking that the >> > number of sectors (blockdev --getsize) is exactly the same. >> >> Isn't it okay for the new drive to be larger? At least if the RAID0 was >> created from partitions, not whole block devices. >> And if it was created from devices, there is a way to make the new larger >> drive to be of exactly the same size as the old one, by setting a HPA on >> it >> (see hdparm -N). >> > > The thing that you include into the RAID0 must be the same size. If that > is > a partition, it is easy to make it the same size, but it is also easy to > make > it a different size - so care must be taken. > If it is the whole device ... I wouldn't recommend using HPA - it would > probably confused you later. Just create a partition of exactly the right > size and use that. Fortunately the arrays are built from partitions and not block devices, and the one at the end of the disk is just /tmp so even if the new disk is slightly smaller for some reason it won't be a big deal to lose that particular array. Now I just have to hope that the failing one lasts long enough to pull the data off... Thanks for all your help. -Ben -- 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
