| From: | Craig James <cjames(at)emolecules(dot)com> |
|---|---|
| To: | "pgsql-admin(at)postgresql(dot)org" <pgsql-admin(at)postgresql(dot)org> |
| Subject: | Re: Stuck LSI 9650SE-12 RAID Controller |
| Date: | 2014-08-05 17:11:31 |
| Message-ID: | CAFwQ8rc_yg14yku_Oid+pDC8UkRXcYn4=YOONjaX6GJre-M3yQ@mail.gmail.com |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-admin |
On Tue, Aug 5, 2014 at 9:00 AM, Craig James <cjames(at)emolecules(dot)com> wrote:
> Has anyone seen anything like this?
>
> Our LSI 9650SE-12 RAID Controller dropped the main Postgres disk offline
> ... it just disappeared as though the disk wasn't there. It was an 8-disk
> RAID10 unit. The other unit (RAID1 for Linux & pg_xlog) was
> still functional.
>
> Using tw_cli, it showed the array as "DEGRADED" and claimed to be
> verifying it. One disk in the array was "DEGRADED". There was no /dev entry
> for the device; Linux couldn't see it at all.
>
Aha. I found this
<http://www.lsi.com/downloads/Public/SATA/SATA%20Common%20Files/9.5.5_Release_Notes.pdf>.
Check out the first item in the "bugs" section: "RAID-10 arrays going
Inoperable/Verifying Mode (SCR-2278)".
A lesson ... keep a device's firmware up to date.
Craig
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Murthy Nunna | 2014-08-07 19:09:32 | How to determine replication lag |
| Previous Message | Scott Whitney | 2014-08-05 16:14:20 | Re: Stuck LSI 9650SE-12 RAID Controller |