[CentOS] Re: 3ware 9650 issues

Gary Richardson gary.richardson at gmail.com
Mon Jun 23 20:35:16 UTC 2008


1500W should be plenty, but the card may not be getting enough power.

On a much smaller system (3 drives, 1 3ware card), I had power problems. I
used a 400W power supply and the +-5V rail was only delivering 3.9V. I kept
losing drives. This was an 'expensive' Antec power supply.

I switched to a budget 300W power supply just to see what would happen. The
unit delivered a much cleaner ~4.8V. It's worked great ever since.

On Mon, Jun 23, 2008 at 7:45 AM, Joshua Baker-LePain <jlb17 at duke.edu> wrote:

> On Sun, 22 Jun 2008 at 10:23am, Scott Silva wrote
>
>  on 6-21-2008 9:04 PM Joshua Baker-LePain spake the following:
>>
>>>
>>> This of course leads to a several hour downtime as the system has to be
>>> powered down (not just rebooted) and then the volume needs to be fscked.
>>> I've been back and forth with both the vendor and (via the vendor) 3ware
>>> with this.  The card has been replaced, as well as the whole system.  I'm
>>> running the latest firmware and drivers from 3ware.
>>>
>>>  That looks like either drive, cabling, or power problems.
>>
>
> I'd agree, except for a) all the hardware has been swapped out and b) 1500W
> should be plenty.
>
> It's starting to sound like this may be a somewhat known issue with a
> *long* overdue fix coming from 3ware.  *sigh*
>
> Thanks all.
>
>
> --
> Joshua Baker-LePain
> QB3 Shared Cluster Sysadmin
> UCSF
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