On 27/07/16 14:22, Peter Grandi wrote: > Also, if the data is just 4.5TB, why not go for just a 3x RAID5 > with the 3x 4TB drives, which a usable capacity of 8TB? A degree > of redundancy of 1-in-3 is not bad. It would have less IOPS > though. The problem is that one of the three new 4TB drives is currently part of the old - partly failed - array. So without buying a fourth 4TB drive, that option isn't on the table. Cheers, Wol -- 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