Database Software

Environment:

O.S :          HP-UX  B.11.31 U ia64

RDBMS:   Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production

It is a 2 Node RAC.

Question:

1. How to failover the SCAN VIP and SCAN LISTENER running on node 1 to node 2?
2. What is the relation between standard LISTENER and SCAN LISTENER ?
3. Why do we need LISTENER, when we have SCAN LISTENER ?
4. When I tried with SRCVTL STOP LISTENER , I thought the SCAN LISTENER adn SCAN IP will failover, but it did not?
5. Also please clarify if I use SRVCTL RELOCATE SCAN -i 1 -n Node1
   Actalluy I am trying that by moving the SCAN listeners so that when I do PSU 7 patching on 1 node, no incoming attempt to connect will spawn
   a process and thereby opening files in $ORACLE_HOME (which would prevent the patch from occurring)

Please clarify my queries.

Thanks,  Sivaprasad.S