Asm Instance not starting after Cluster Node Reboot

Introduction.

I have been involved again in a situation where  the Rac cluster did not start after a reboot of the server during a maintenance window. And as always a true challenge that was. In such cases it is true that the alert log of the node and the ohasd logging  will be your best friends ( well together with Metalink and Google of course).

Details:

After a Os patching action on one of the nodes on one of my 11.2 Racs (Grid Infrastructure)  i was contacted can you please take a look cause the clusterware is not starting. After first investigation it showed that statement was not entirely true .  The cluster ware itself had been started but the  log file for the ohasd. showed following details , that it was not able to start the asm Resource due to ORA-01031: insufficient privileges.

this is what it showed:

## /opt/crs/product/11.2.0.2_a/crs/log/Mysrvr1r/ohasd [+ASM1]# view ohasd.log
2013-08-06 11:05:01.643: [    AGFW][1980881216] {0:0:2} Received the reply to the message: RESOURCE_CLEAN[ora.asm 1 1] ID 4100:411 from the agent /opt/crs/product/11.2.0.2_a/crs/bin/oraagent_oracle
2013-08-06 11:05:01.644: [    AGFW][1980881216] {0:0:2} Agfw Proxy Server sending the reply to PE for message:RESOURCE_CLEAN[ora.asm 1 1] ID 4100:410
2013-08-06 11:05:01.644: [   CRSPE][1991387456] {0:0:2} Received reply to action [Clean] message ID: 410
2013-08-06 11:05:01.644: [   CRSPE][1991387456] {0:0:2} Got agent-specific msg: ORA-01031: insufficient privileges
2013-08-06 11:05:01.646: [    AGFW][1980881216] {0:0:2} Received the reply to the message: RESOURCE_CLEAN[ora.asm 1 1] ID 4100:411 from the agent /opt/crs/product/11.2.0.2_a/crs/bin/oraagent_oracle
2013-08-06 11:05:01.646: [    AGFW][1980881216] {0:0:2} Agfw Proxy Server sending the reply to PE for message:RESOURCE_CLEAN[ora.asm 1 1] ID 4100:410
2013-08-06 11:05:01.646: [   CRSPE][1991387456] {0:0:2} Received reply to action [Clean] message ID: 410
2013-08-06 11:05:01.829: [    AGFW][1980881216] {0:0:2} Received the reply to the message: RESOURCE_CLEAN[ora.asm 1 1] ID 4100:411 from the agent /opt/crs/product/11.2.0.2_a/crs/bin/oraagent_oracle
2013-08-06 11:05:01.829: [    AGFW][1980881216] {0:0:2} Agfw Proxy Server sending the last reply to PE for message:RESOURCE_CLEAN[ora.asm 1 1] ID 4100:410
2013-08-06 11:05:01.829: [   CRSPE][1991387456] {0:0:2} Received reply to action [Clean] message ID: 410
2013-08-06 11:05:01.829: [   CRSPE][1991387456] {0:0:2} RI [ora.asm 1 1] new internal state: [STABLE] old value: [CLEANING]
2013-08-06 11:05:01.829: [   CRSPE][1991387456] {0:0:2} CRS-2681: Clean of 'ora.asm' on 'Mysrvr1r' succeeded

That did not look all to good. I had a first guess about what was going on by trying to connect to the asm instance on that box via sqlplus ( sqlplus / as sysasm). When that showed  also the ORA-01031: insufficient privileges.

I had to giggle cause when  looking for that  message on the web  i ended up with my blog. Which proves once again that you can help yourself by helping others by sharing in the Oracle community.   Basically i  focused on  three metalink notes that might apply:

Troubleshooting ORA-1031: Insufficient Privileges While Connecting As SYSDBA [ID 730067.1]

UNIX: Checklist for Resolving Connect AS SYSDBA Issues [ID 69642.1]

UNIX: Diagnostic C program for ORA-1031 from CONNECT INTERNAL / AS SYSDBA [ID 67984.1]

The third note (67984.1) was my bingo !  So it was proved that my groupid ( dba) altered from 101 to some other value by a ldap lookup.. I have asked the Linux colleague  to disable these lookups and after that the asm instance started and all the instances as well.  As a workaround , in the /etc/ldap.conf they have added the oracle user to the nss_initgroups_ignoreusers to prevent this from happening.

Happy reading,

Mathijs

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