(Re-adding linux-raid to CC) On Fri, Oct 2, 2009 at 6:36 PM, Ryan Wagoner <rswagoner@xxxxxxxxx> wrote: > On Fri, Oct 2, 2009 at 2:22 PM, David Rees <drees76@xxxxxxxxx> wrote: >> It seems like I should be able to add a drive as a directly >> replacement for one of the drives I'm pulling out (so I temporarily >> end up with 3-copies of that chunk instead of 2) until I pull >> fail/remove the older disk. If I was using RAID0 striped over RAID1 >> mirrors, for example, I know this is possible. >> >> Is this possible to do with RAID10? > > You could stop the array and use dd to copy the old disks to the new > ones. Then just start up the array on the new disks. Yeah, that would work, but the goal is to do the migration without any downtime. eSATA hot-swap even in inexpensive enclosures works pretty well these days. There are slight hiccups as the drives get rescanned, but it's not too noticable. -Dave -- 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
