Database Reference
In-Depth Information
Startup and Shutdown of ASM Instance
Similar to an Oracle Database instance, an ASM instance can be shut down or started up using the startup
or shutdown command after you log in to ASM instance using SQLPLUS or using the command srvctl
stop -n <nodename>.
However if the OCR and voting disk files of the Clusterware are stored in Oracle ASM, shutting down ASM will
also bring down Oracle CRS of the Clusterware. Here are some of the error messages shown in the alert.log file of
Clusterware after executing the “shutdown” command in the ASM instance:
crsd(5491)]CRS-1013:The OCR location in an ASM disk group is inaccessible. Details in /u01/
app/12.1.0/grid/log/k2r720n1/crsd/crsd.log.2013-02-01 17:17:29.604
...
[crsd(5491)]CRS-2765:Resource 'ora.VOCR.dg' has failed on server 'k2r720n1'.2013-02-01 17:17:29.924
[/u01/app/12.1.0/grid/bin/oraagent.bin(5600)]CRS-5822:Agent '/u01/app/12.1.0/grid/bin/oraagent_grid'
disconnected from server. ...
...
[crsd(8205)]CRS-0804:Cluster Ready Service aborted due to Oracle Cluster Registry error [PROC-26:
Error while accessing the physical storage
...
[ohasd(3813)]CRS-2765:Resource 'ora.crsd' has failed on server 'k2r720n1'.
2013-02-01 17:17:50.104
[ohasd(3813)]CRS-2771:Maximum restart attempts reached for resource 'ora.crsd'; will not restart
In Cluster Registry process log: crsd.log:
...
2013-02-01 17:17:39.253: [ OCRASM][2793891616]ASM Error Stack : ORA-15077: could not locate ASM
instance serving a required diskgroup
2013-02-01 17:17:39.254: [ OCRASM][2793891616]proprasmo: The ASM instance is down
2013-02-01 17:17:39.254: [ OCRRAW][2793891616]proprioo: Failed to open [+VOCR]. Returned
proprasmo() with [26]. Marking location as UNAVAILABLE.
2013-02-01 17:17:39.254: [ OCRRAW][2793891616]proprioo: No OCR/OLR devices are usable
...
2013-02-01 17:17:39.258: [ CRSOCR][2793891616] OCR context init failure. Error: PROC-26: Error
while accessing the physical storage
ORA-15077: could not locate ASM instance serving a required diskgroup
2013-02-01 17:17:39.258: [ CRSMAIN][2793891616] Created alert : (:CRSD00111:) : Could not init OCR,
error: PROC-26: Error while accessing the physical storage
ORA-15077: could not locate ASM instance serving a required diskgroup
2013-02-01 17:17:39.258: [ CRSD][2793891616][PANIC] CRSD exiting: Could not init OCR, code: 26
2013-02-01 17:17:39.258: [ CRSD][2793891616] Done.
The crsctl check also showed that the CRS was offline.
$crsctl check crs
CRS-4638: Oracle High Availability Services is online
CRS-4535: Cannot communicate with Cluster Ready Services
CRS-4529: Cluster Synchronization Services is online
CRS-4533: Event Manager is online
At this point, restarting ASM instance still failed to mount the diskgroup for the OCR/voting disk,
which prevented OCR and voting disk files being accessible from the Clusterware. Without being able
to access OCR and voting disk files, we were not able to start the CRS service.
SQL> startup
ASM instance started
