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crsctl modify resource tips

Oracle Database Tips by Donald BurlesonFebruary 16, 2015

Question:  How do I use the crsctl modify resource command to change the attributes to autostart ASM, Oracle and my listener in RAC systems?

Answer:  The CRSCTL commands are used to control cluster ready services (CRS) in RAC environments.  Starting in 11g, you can use the crsctl modify resource command starting in 11g to check and modify the AUTO_START status of a CRS resource in RAC.  The crsctl modify resource does the same thing for the database as the ORATAB file, but it only for RAC databases.  But you can also autostart the listener on each RAC node and autostart ASM.

You start by checking the current restart values with crsctl stat.  You can use crs_stat -p command to get the profile of any RAC resource.
          crsctl stat res -p  

Here you can specify to never to autostart-start a CRS resource:

      crsctl modify resource resource_name -attr "AUTO_START=never"

Here you can specify to always auto-start a CRS resource: by specifying AUTO_START=1:

        crsctl modify resource resource_name -attr "AUTO_START=1"

Here are some examples of the crsctl modify resource command:

      crsctl modify resource "ora.asm"   -attr "AUTO_START=1"
     crsctl modify resource "" -attr "AUTO_START=1"
     crsctl modify resource "ora.listener.lsnr" -attr "AUTO_START=1"

Beware that the "crsctl modify resource" option is only available for 11g and beyond. 

The crsctl executable is locate in the $GRID_HOME/bin directory and is used in Oracle RAC/Grid clusters.  Note that AUTO_START must always be in capital letters, else you get the CRS-0160 error:
crsctl modify resource ora.db -attr "auto_start=always"

CRS-0160: The attribute 'auto_start' is not supported in this resource type.
CRS-4000: Command Modify failed, or completed with errors.

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