NQSError: 47051 error on Windows cluster

I’m getting nQSError: 47051 while installing OBIEE cluster on windows.
Here’s the situation. We are installing OBIEE (10.1.3.4) on a two node (Windows 2003, SP2) cluster. The shared file system is built on a SAN using windows clustering. This windows SAN cluster is also attached to the primary OBIEE server as a local drive. All the shared files (Repository Publishing Directory, Cache directory etc.) are mapped to this cluster.
After the configuration the OBI Server doesn’t start and throws error
[nQSError: 47024] The Oracle BI Server participates in a cluster but errors were found in the cluster configuration file.
[nQSError: 47051] The Oracle BI Server is specified as participating in a cluster, but global cache file storage location, <My shared file location, is invalid.
I am perplexed since I (or the user owning OBIEE) can see this disk using ‘Windows explorer’ and read and right to it. Then what can be the issue with OBIEE server?
Funny thing is when I specify my local directory (the SAN cluster attached locally) as the cache location it works!
Interestingly I found out that there is a bug (6165192) on OBIEE 10.1.3.3 where simillar problem is listed. Not sure if that is still applicable to 10.1.3.4.
I noticed that we have all kinds of firewall (internally) between the servers. Can that block the OBIPS communication with the server to which the SAN disk is attached? If yes, then what Protocol is used for such a communication and on what port?
Did any of you face similar situation? If yes, then what was your resolution?
Any help on this will be greatly appreciated.

Hi,
In our environment we have installed OBIEE 10.1.3.4 on two windows servers(primary and secondary) and these servers not clustered using Microsoft or any other cluster software .
We are planning to use SAN drive to hold the shared cache, now we are facing a challenge in configuring the SAN to see from both OBIEE servers, is it possible to use the SAN with out installing any cluster between these servers.
I understood from above post that you guys implemented/installed OBIEE on Windows environment with SAN.
Is it possible to have a quick call. Your help is greatly appreciated.
Thanks

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