I've got an 8 disk RAID10 array (near2 layout) where I am moving data off some older disks onto newer disks. Currently what I'm doing is adding the newer disks as spares and then failing/removing the older disks one at a time. This works fine, but leaves me with an hour or so of running the array degraded while the spare drive syncs up which leaves me open for data-loss during this time period. 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? Thanks 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
