Saturday, April 21, 2012

Change ASM instance number in the cluster

We cannot change the asm instance number to a NOn-default value.
The reason for this restriction is :
If we have Non-default name to ASM instance then tools like GC and
Configuration assistants may fail in future in 11.2.
There is some code which checks for +ASM and determines this as ASM.
In 11.2 on-wards,the ASM Instance number will be assigned the order of root.sh ran.
For example :-
If we run the root.sh first on node B,then +ASM1 will be configured on node B ,next root.sh ran node C ,
then ASM2 will run node C .like respectively.
If we want to change the order,then we need to re-configure the cluster .
ie need to de-configure the CRS ,re-configure the CRS with re-creating the

1 comment:

  1. it's not 100% true
    chk this post http://oracleappsdba.wordpress.com/2008/08/26/rename-asm-instance-in-rac/

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