Re: 10g RAC using SAN for storage

From: DA Morgan <damorgan_at_psoug.org>
Date: Fri, 12 Sep 2008 18:29:32 -0700
Message-ID: <1221269373.46549@bubbleator.drizzle.com>


macdba321 wrote:
> On Sep 12, 9:35 am, DA Morgan <damor..._at_psoug.org> wrote:

>> macdba321 wrote:
>>> I am testing a 2 node RAC setup and want to try using a SAN for the
>>> dedicated storage (instead of a dedicated local storage disk array
>>> located within the same frame).
>>> Are there any "gotchas" that I should be aware of when using the SAN
>>> for storage as opposed to a typical storage array?
>>> Thanks!
>> How did you use "dedicated local storage disk" and make it shared
>> everything?
>>
>> You've said nothing of CFS or ASM or RAW. Why?
>>
>> The biggest potential issue with a SAN is labeling the disks used
>> for the voting disk and OCR so that they are mounted in the correct
>> order by the O/S.
>> --
>> Daniel A. Morgan
>> Oracle Ace Director & Instructor
>> University of Washington
>> damor..._at_x.washington.edu (replace x with u to respond)
>> Puget Sound Oracle Users Groupwww.psoug.org

>
> Thanks for the reply.
>
> I plan to use ASM over raw devices. (Again, this is purely for test/
> learning, not a production application.)
>
> Please correct me if I'm wrong, but I'm assuming that I'll need HBAs
> for both nodes to connect to the same LUNs on the SAN? (There's no way
> to do it without the HBA is there?)
>
> Thanks.

Not with a SAN unless you have an antique with fibre protocol over copper and can find drivers for it. Another possibility is to use iSCSI drivers.

-- 
Daniel A. Morgan
Oracle Ace Director & Instructor
University of Washington
damorgan_at_x.washington.edu (replace x with u to respond)
Puget Sound Oracle Users Group
www.psoug.org
Received on Fri Sep 12 2008 - 20:29:32 CDT

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