Thread (15 messages) 15 messages, 5 authors, 2015-07-06

Re: Issue removing failed drive and re adding on raid 6

From: Wols Lists <hidden>
Date: 2015-07-04 07:58:34

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
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