You must create the soft link for $ORACLE_HOME on each of the nodes in the cluster, and then modify the values for the agent attributes.
To replace the long pathnames
# ln -s /opt/apps/oracle/home/directory/is/longer/than\ /eighty/characters/oracle /opt/link_to_longpath
For ASM, also modify these attributes for the ASMInst and the ASMDG resource types.
For example:
Home = "/opt/link_to_longpath" Pfile = "/opt/link_to_longpath/dbs/initVRT.ora"
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