Re: SDS Mirroring on 280Rs

From: Chris Cox (ccox_nopenotthis_at_airmail.net)
Date: 05/06/03 

Date: Tue, 06 May 2003 12:03:56 -0500

Kyle Tucker wrote:
> In article <3eb285a6$1_6@corp.newsgroups.com>,
> "Joe Borgia" <borgiaj@rl.af.mil> writes:
>
>>What is the general thinking with regard to mirroring the two internal disks
>>on a 280R? I know they're both on the same controller, but realistically,
>>how often is there a controller failure?
>>
>>Is there anyone out there doing this?
>
>
> I do it on my 280R, my 250's, 4500's, U1's and any other
> server I don't want to go down for a disk failure. I've
> lost an OS mirrored drive once and it worked great, never
> missed a beat. I've never seen a controller fail on any
> Suns I've administered.
>

The only controller failures I've seen were due to improper
power (voltage sags and spikes). A good UPS or even a
line conditioner would have prevented the issue (and at
my recommendation one was installed, after we lost several
pieces/parts of equipment... controller boards, disks, etc).

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