Database Software

Hello

I know it's an oldie but I could not find the same scenario as what I have.


Oracle 11.2.0.3 on Oracle Linux 6.2 UEK, 64-bit using ASM/Grid 11.2.0.3, single instance, not RAC


ASM does not start

SQL> startup mount;
ASM instance started

Total System Global Area 371617792 bytes
Fixed Size 2228504 bytes
Variable Size 344223464 bytes
ASM Cache 25165824 bytes
ORA-15032: not all alterations performed
ORA-15017: diskgroup "ASMREDO_20120720170447573_0" cannot be mounted
ORA-15063: ASM discovered an insufficient number of disks for diskgroup "ASMREDO_20120720170447573_0"
ORA-15017: diskgroup "ASMFRA_20120720170447553_0" cannot be mounted
ORA-15063: ASM discovered an insufficient number of disks for diskgroup "ASMFRA_20120720170447553_0"
ORA-15017: diskgroup "ASMDATA_20120720170447521_0" cannot be mounted
ORA-15063: ASM discovered an insufficient number of disks for diskgroup "ASMDATA_20120720170447521_0"

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I dont know if this is the reason for ASM not starting but the fact remains that ASM does not start.

All other disks appear to be OK, besides I expect ASM to startup even if all database disks are dead.
Clearly I am missing a vital piece of the puzzle.

The problem is that above mentioned disks groups were removed several weeks ago, we dont need them, they were temporary.
Since ASM fails to start (sqlplus fails, srvctl start asm fails, asmcmd fails) I am not able to even connect to ASM to see if I can clean up above disksgroups.

Any suggestions? The logs dont seem to have any answers.

many thanks in advance