Re: Multiple applications on Cluster

From: kk (knightk7_at_hotmail.com)
Date: 12/02/04 

Date: Thu, 02 Dec 2004 17:14:11 -0500

Frank wrote:
> Today we have a Windows Server 2003 cluster runnin on one node SQL Server 2K
> and on the other node Oracle.
> We have to face a problem now and decide where to put Lotus Notes and the
> entire File System.
> We have 2 possibility, one is to put these 2 new virtual server and
> applications on the cluster, the other one is to buy another cluster and /or
> another SAN.
> Regardless of the financial aspect of the problem I am searching for
> articles, Microsoft notes,IBM notes or guru's advises that can show some good
> point and some bad points of these 2 possibility.
> In my opinion I would like to leave SQL Server alone on one Server and
> Oracle on the other node, buy another cluster and another SAN and put Lotus
> Notes on one node and File system on the second node.
>
> Can you please help me with this problem?
> Thank you very much and kind regards.
>
>
Windows 2003 supports up to 8 nodes in the cluster, the best use of
resources is to add an additional node for each application and
configure the cluster such that any of the nodes can fail over to your
passive node(s) Today I would assume that you have at least a 3 node
cluster to support SQL and Oracle since you would never want both of
them on the same box at the same time so I would add another for Notes
and another for File Shares and one more failover target so that you can
suffer at least 2 server outages. The File Share node could probably
handle one of the application failures as well depending on how loaded
up each of your servers are. What I would not do is add the addition
load to the existing nodes running SQL and Oracle unless these are very
beefy boxes and/or nothing is mission critical. :)

With that type environment, a more robust cluster solution might be in
order. You should take a look at VERITAS Cluster Server which handles
this quite a bit more elegantly.

Good Luck

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