Re: 2 node Active/Active with 2 separate storage servers all in 1.

Hi

One the 1st question, I see no reason why it should not be supported. If you
need a 100% answer then you will probably need to get in Microsoft
Consulting Services and have then write you a report.

We run combinations of Multiple SANs and / or multiple SAN Networks.

Regards
--------------------------------
Mike Epprecht, Microsoft SQL Server MVP
Zurich, Switzerland

IM: mike@xxxxxxxxxxxx

MVP Program: http://www.microsoft.com/mvp

Blog: http://www.msmvps.com/epprecht/

"Terry G Phillips" <TerryGPhillips@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in
message news:11DF3317-6A20-47F9-B51C-7C867AE4F992@xxxxxxxxxxxxxxxx
> Mike - thank you for the quick reply, but I'm still not sure if what we
> want
> to do it supported. Yes, our 2 seperate configurations are in the HCL. We
> can
> take our 2 445s along with required HBAs, McData, and DS8100 and have an
> approved solution. My real question is: if we take another set of HBAs,
> McData and a ESS 800 , an approved solution by itself, and combine it with
> the same servers and other storage solution, do I assume that will
> invalidate
> the total system? Is there a way to get Microsoft's opinion on this?
>
> Yep - I follow you on the Quorum drive.
>
> And you stated: "We run multiple SANS for our clusters, without any
> problems". Is that multiple SAN networks or Storage Servers? To the same
> cluster instance?
>
> Thank you again,
>
> Terry G Phillips
>
>
> "Mike Epprecht (SQL MVP)" wrote:
>
>> Hi
>>
>> For clustering HCL hardware can not be picked and matched, it is
>> certified
>> as a whole system. According to
>> http://www.microsoft.com/windows/catalog/server/default.aspx?subID=22&xslt=detail&pgn=76C84FEB-4F30-8E40-4505-AA4450AC627E,
>> the 445 server is certified with the storage solution.
>>
>> You then have to decide on which SAN you are going to put the Quorum
>> drive,
>> and this SAN will be your single point of failure for the cluster. Once
>> you
>> cluster, you really need both SAN's up always up, especially the Quorum
>> one.
>>
>> We run multiple SANS for our clusters, without any problems.
>>
>> Regards
>> --------------------------------
>> Mike Epprecht, Microsoft SQL Server MVP
>> Zurich, Switzerland
>>
>> IM: mike@xxxxxxxxxxxx
>>
>> MVP Program: http://www.microsoft.com/mvp
>>
>> Blog: http://www.msmvps.com/epprecht/
>>
>> "Terry G Phillips" <TerryGPhillips@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in
>> message news:FF1F4968-0077-48C3-AF27-C9F788592538@xxxxxxxxxxxxxxxx
>> > We have a pair of identical IBM 445s and would like to run them in an
>> > active/active cluster. We have a new IBM TotalStorage DS8100 and an
>> > older
>> > IBM
>> > TotalStorage Enterprise Storage Server Model 800 that along with the
>> > servers,
>> > are a small part of our SAN. We run Emulex & Qlogic HBAs and McData
>> > 6064
>> > switching.
>> >
>> > The plan was to run 1 node/SQL instance A with SQL storage on the 8100.
>> > And
>> > the other node/SQL instance B with SQL storage on the 800. The design
>> > has
>> > been scoped to where each cluster group will point to a single storage
>> > server. Although both of the configurations by themselves, are on the
>> > HCL,
>> > our storage VAR raised an eyebrow and questioned MS Support if using
>> > both
>> > ESSs in a single cluster environment.
>> >
>> > So what do ya'll think? Does merging 2 approved storage solutions into
>> > a
>> > single cluster make it un-approved?
>> >
>> > Any advise, questions or comments would be appreciated.
>> >
>> > Thx,
>> >
>> > Terry G Phillips
>>
>>
>>


.

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