Fwd: Re: Multiple DBs on One RAC - Adding New Nodes and Different Storage

From: Tim Gorman <tim_at_evdbt.com>
Date: Thu, 26 Dec 2013 12:46:46 -0700
Message-ID: <52BC87A6.7020705_at_evdbt.com>

Vote disk and OCR are likely on the EMC and thus would need to be shared to the new nodes.                                                                                    

On 12/26/2013 12:22 PM, David Barbour wrote:
> Merry Christmas (to those of you who celebrate), Happy Holidays (to
> those who may not but have something going on - including New Year's),
> and Good Afternoon:
>
> We are currently running a 3-node RAC on RHEL 6.3(version
> 2.6.32-279.22.1.el6.x86_64), Oracle 11.2.0.3.0 on ASM. Storage is
> fibre-connected EMC VMAX. Cluster cache communication is handled via
> Infiband. We are adding a new application and two nodes. The
> question arises with the storage. We're putting the new application
> on a Dell Compellent SAN. Also fibre connected. The plan is to make
> the 2 new nodes the primary nodes for this application, and make node
> 3 of the current cluster the fail-over.
>
> Can anyone who has used multiple different SANs before provide any
> hints/tips/tricks/pitfalls?
>
> Will we have to serve the current EMC Storage to the new nodes? I
> don't see why as we're not expanding the number of instances of the
> currently running application. But we will have to zone the new
> storage to connect to the third node of the current cluster. Any
> thoughts on how to install this new application? I don't really want
> instances of it on Nodes 1 & 2 at all. If I make Node 3 the master
> node and install from there, I should be able to pick Nodes 4 & 5 on
> which to create the other new instances.
>
> Any thoughts?

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Received on Thu Dec 26 2013 - 20:46:46 CET