The issue with hard drives in RAID arrays is the read timeout. A drive that is optimised for non-RAID will do more retries when reading in the hope of getting good data while the RAID optimised drives will return an error quickly and let the other drives have a go. In spite of thus desktop drives work well in RAID arrays apart from poor performance when things go wrong. I am not aware of SSD having such timeout issues. Can you cite a reference? In terms of what disks do there's no difference between a mirror and RAID5+. On 7 August 2014 12:19:28 AM AEST, Mike O'Connor <mike@pineview.net> wrote:
On 24/07/2014 9:15 am, hannah commodore wrote:
Any thoughts appreciated
Hi
If there not Enterprise SAS SSD's they will have issues being in array because the firmware is not optimised fir it. The same way as standard spinning media drive has issues with being in a raid array if its not configured for it.
Never run SSD's in more than a raid mirror, unless the drive actually indicates it ok to be used in a RAID.
Cheers Mike _______________________________________________ luv-main mailing list luv-main@luv.asn.au http://lists.luv.asn.au/listinfo/luv-main
-- Sent from my Samsung Galaxy Note 2 with K-9 Mail.