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1 reply Latest Post - ‏2012-12-11T14:46:40Z by chr78
SystemAdmin
SystemAdmin
4779 Posts
ACCEPTED ANSWER

Pinned topic DS3524 - Hotspare will not kick in on disk pool?

‏2012-12-11T10:14:36Z |
Hi!

We have a customer that recently purchased a DS3524.

They have 19 146 GB SAS disks and 3 400 GB SSD.

We have created a mirror of 2 of the SSD's and the 3rd disk as a hotspare. This setup works great, and the hot spare kicks in if we remove any of the disks in the mirror.

For the 19 SAS disks we have created a disk pool with 18 of them, and set 1 as a hotspare. I can not see the disk pool as an array, and can not specify the SAS (hot spare)for the disk pool (it just says "Hot spare coverege" - ALL).

We unplugged one of the drives in the disk pool, but the hot spare did not kick in. Can you somehow configure a hot spare to a disk pool, or am I missing something?

Regards,
Alexander
Updated on 2012-12-11T14:46:40Z at 2012-12-11T14:46:40Z by chr78
  • chr78
    chr78
    13 Posts
    ACCEPTED ANSWER

    Re: DS3524 - Hotspare will not kick in on disk pool?

    ‏2012-12-11T14:46:40Z  in response to SystemAdmin
    the disk pool concept is quite different from the traditional array approach. There is no
    dedicated/global hot spare for a disk pool. There's a "preservation capacity" defined
    for your disk pool (which is similar to hot spare). Please read the storage manager 10.83 guide
    for more info.