Hi List, maybe some RAC-guru can help me: Config: 2 node RAC (Solaris@SPARC) 11.1.0.7 several DBs there, one particular DB: CDB111T11_SITE1 Instance1: CDB111T11 Instance2: CDB111T12 currently, both instances are using the ORACLE_HOME=/appl/oracle/product/11107 (local installed on every node) I would like to do the following steps: 1) install a new O_H on both nodes: /appl/oracle/product/11107_PATCH (with PSU 11.1.0.7.2 - this patch is marked as "rolling RAC installable") 2) shutdown Instance1 CDB111T11 3) change the config for Instance1 to use the new O_H /appl/oracle/product/11107_PATCH 3) startup Instance1 4) shutdown Instance2 CDB111T12 5) change the config for Instance2 to use the new O_H /appl/oracle/product/11107_PATCH 6) startup Instance2 7) run the post-sql "@catbundle.sql psu apply" on Instance2 I just does not know how to change the O_H on a per Instance base; srvctl modify seems to only let me chose one O_H per database (which is a nonsens in my opinion). can someone please help me if (and how) step 3 and 5 is possible? thank you, Martin -- //www.freelists.org/webpage/oracle-l