On 04/07/15 07:10, Justin Stephenson wrote: > ata6.00: ATA-8: ST3000DM001-9YN166, CC4H, max UDMA/133 > ata6.00: 5860533168 sectors, multi 16: LBA48 NCQ (depth 31/32), AA > ata7.00: ATA-9: ST3000DM001-1CH166, CC27, max UDMA/133 > ata7.00: 5860533168 sectors, multi 16: LBA48 NCQ (depth 31/32), AA > ata8.00: ATA-9: ST3000DM001-1CH166, CC27, max UDMA/133 > ata8.00: 5860533168 sectors, multi 16: LBA48 NCQ (depth 31/32), AA > ata5.00: ATA-9: ST3000DM001-1CH166, CC27, max UDMA/133 > ata5.00: 5860533168 sectors, multi 16: LBA48 NCQ (depth 31/32), AA > ata6.00: configured for UDMA/133 > ata4.00: ATA-9: ST3000DM001-1CH166, CC27, max UDMA/133 > ata4.00: 5860533168 sectors, multi 16: LBA48 NCQ (depth 31/32), AA OWWWWW OWWWWWW OWWWWW Are these 3TB Seagate Barracudas? (Same as mine). You DO NOT want to be running raid 5 or 6 on these things !!!! They're desktop drives not meant for raid. They do not support ERC. *One* *soft* failure on these and you run a good chance of trashing your array !!!! Make sure you've got your raid timeout increased - there's plenty of threads about how to do it - otherwise one disk hiccup for any reason is likely to cause a cascade of failures !!!! You need to upgrade them to Western Digital Reds or similar asap. 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