Re: 9i RAC with EMC storage

From: DA Morgan <damorgan_at_x.washington.edu>
Date: Wed, 05 Jan 2005 09:52:57 -0800
Message-ID: <41dc292b$1_2@127.0.0.1>

Dusan Bolek wrote:

> DA Morgan wrote:
>

>>Were that this was true. I have personally had problems with EMC due

>
> to
>

>>their lack of actual support of RAC and incompatibilities.
>>
>>Good company, good hardware, but their RAC support is still

>
> problematic.
>
> Can you more elaborate on this? I have here despite others also
> combination of AIX 5.2, HACMP, RAC ORA 9.2.0.5 (across two nodes) + EMC
> Symmetrix(PowerPath). We had problems with Oracle, AIX, combination of
> both, but as far as I know there were no problems with EMC Symmetrix
> because of its "problematic" RAC support. However, we're using raw
> devices, so the only thing that we need from our storage is to provide
> concurrent access to stored data from both nodes. Used PowerPath
> drivers can do this with almost not problems. Maybe in the case of
> using Clustered Filesystem is the situation different. Would be nice to
> know about problems of others to be prepared for the worst. :-)
> --
> Dusan

To be blunt ... when we tried to build a RAC cluster we ran into problems with driver compatibility. Contacted their local reps that had zero experience so we contacted their support team where we were informed that they hadn't actually ever tested the configuration into which they sold the unit and would work with us on it. We then experienced several weeks of zero support, no return phone calls, no return emails, etc. And when I say "we" I mean not just myself but also the local Oracle systems specialist assigned to the project. He was so angry he was the one that made the decision to send it back and will no longer recommend EMC for RAC. The NetApp that replaced it was functional in less than two hours.

-- 
Daniel A. Morgan
University of Washington
damorgan_at_x.washington.edu
(replace 'x' with 'u' to respond)

Received on Wed Jan 05 2005 - 11:52:57 CST