SunCluster rebooting due to faulty quorum device

Hi,
I have a 2 node SunCluster on 2 E2900's running Solairs 10 11/06.
Ive got a problem with the Cluster quorum which I hope someone can assist with�.
Basically, the 2 node cluster has 1 quorum device called d17s2 configured from an EMC SAN and we are using Powerpath, this is a 16GB partition on a separate LUN (previously used for a zone). I added the quorum using clsetup and used the global device d17
The �*scstat �q*� output shows:-
Quorum device added by clsetup�
-- Quorum Summary �
Quorum votes possible:     3
Quorum votes needed:     2
Quorum votes present:     2
-- Quorum votes by node �
          Node Name          Present          Possible     Status
Node votes:     server1          1          1     Online
Node votes:     server2          1          1     Online
-- Quorum Votes by Device --
          Device Name          Present          Possible     Status
Device Votes:     /dev/did/rdsk/d17s2     1          1     Online
When I reboot server1, server2 panics with the following message:-
Panic [cpu1]/thread=300065be060: CMM: Cluster lost operational quorum aborting.
And goes back to the ok prompt..
When both servers reboot the following message appears:-
WARNING: clq_scsi3: Ioctl to register node�s key returned success but read check found that key is not present on quorum device /dev/did/rdsk/d17s2
WARNING: CMM: Registering reservation key on quorum device /dev/did/rdsk/d17s2 failed with error 2
And then they both start up in cluster mode and start the 3 oracle resource groups as they should. I can failover the RG�s and it works ok but as I say when I reboot one of the servers the other one panics as if it can�t see quorum�
Ive googled, am on Sunsolve as I write and it seems to point to a bad quorum device but this is a shared EMC LUN presented and as you can see, im using the global device which I think is correct�
Is there anything I need to ask Storage to do with regard to the LUN presentation..??.. if not how do I fix the faulty quorum device..??.. ive also tried the quorum device on a shared data disk but this give me the same issue..
Thanks in advance..
Steve...

Hi,
there are 2 problems here:
a) you can configure the QD, and it shows as online, but is not counted as being online. You only have 2 out of 3 votes although everything looks ok. That is a bug. If I could reproduce it I would file a bug. But I do not have access to an EMC system.
b) you cannot succesfully configure a QD on an EMC using PP.
There is a document available from EMC that tells you how to configure the storage. The only thing that I found browsing through it, is the PER bit
"Sun Cluster 3.x uses SCSI-3 PGR (persistent group reservation) for
storage devices that are accessible through more than two paths.
Symmetrix systems support this functionality using the PER setting
on the SymmWin Edit Volumes dialog. This flag must be set for all
devices that will be presented to the Sun Cluster nodes."
This is from "EMC host connectivity with Sun SOlaris".
It would be interesting to see what error messages are logged when you first configure the QD.
Then try again with the PER setting. Maybe that is the problem.
The fact that the "other" node panic's with loss of operational quorum is only a logical consequence of what is happening with the QD.
Hartmut

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