RAW device permission changing dynamically on HPUX
Date: Wed, 30 Jul 2008 11:43:08 +0300
Message-ID: <97b7fd2f0807300143r7508978do7dd041528e0ccdbd@mail.gmail.com>
Hi list,
We currently have a 4 node Oracle RAC on HP UX Superdom Itanimum II with EMC SAN (Symatrix DMX4) storage. Since few days, we are facing an abnormal situation where the RAW disks permissions (includes OCR, Voting and ASM disks) are getting changed dynamically and sometime during the node reboot too, which cause Cluster hung situation. Our current workaround is to reset the permissions to RAW disks.
If I am not wrong, this sort of problem exists on Linux reboot and to prevent this, we need to set a parameter which keeps the existing parameter alive. I am not sure this is the same case on HP. Does anyone out there has faced similar kind of issue? or it is very abnormal situation?
We did open a call with HP support and they said, basically, OS doesn't have any control on the RAW devices and definately it won't change the permission either dynamically or during the reboot time and they suspect Oracle might be doing something to change the permission.
I have opened a TAR with Oracle too and waiting for the reply. Appreciate if someone can put some limelight on this issue.
-- Best Regards, Syed Jaffar Hussain Oracle ACE 8i,9i & 10g OCP DBA RAC Certified Expert Official Oracle RAC SIG Representative for Saudi Arabian region ( http://www.oracleracsig.org/) http://jaffardba.blogspot.com/ http://apex.oracle.com/pls/otn/f?p=19297:4:1579866181463918::NO:4:P4_ID:126 ----------------------------------------------------------------------------------Received on Wed Jul 30 2008 - 03:43:08 CDT
"Winners don't do different things. They do things differently."
-- Best Regards, Syed Jaffar Hussain Oracle ACE 8i,9i & 10g OCP DBA RAC Certified Expert Official Oracle RAC SIG Representative for Saudi Arabian region ( http://www.oracleracsig.org/) http://jaffardba.blogspot.com/ http://apex.oracle.com/pls/otn/f?p=19297:4:1579866181463918::NO:4:P4_ID:126 ----------------------------------------------------------------------------------
"Winners don't do different things. They do things differently."
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