Create guaranteed restore point in oracle 10g RAC ASM

Question

Hi DBAs,
In our production environment we have 2 node master RAC database (Oracle 10.2.0.5) (node1 name=master1 and node2 name=master2)
for which there is going to be a release tonight so want to create a guaranteed restore point for this RAC database.
I have googled many and found some ways, but before I implement it wanted a reviews from experts here.
Note: We already have db_recovery_file_dest set up in ASM...db_flashback_retention_target=1440 and db_recovery_file_dest_size=200GB with arch mode ON.
The steps are
STOP the RAC Database on Both Nodes...
Node1:
$srvctl stop database -d
$Srvctl stop database –d master1
Node2:
$srvctl stop database -d
$Srvctl stop database –d master2
And now start one instance only in mount state:
On node1:
SQL> startup mount
Now enable flashback on Node1...
SQL> alter database flashback on;
SQL> alter database open;
SQL>CREATE RESTORE POINT before_upgrade GUARANTEE FLASHBACK DATABASE;
Now start the second instance…
$srvctl start instance -d -i
$srvctl start instance –d master1 –d master2
Please let me know if there is something needs to be rectified.
Regards,
Ritz

Answer 1

The steps look fine.
Presumably you've already checked to see if the database is in flashback mode and it isn't...hence you putting it into flashbac mode?
Probably just typos but it looks like you have interchanged database names and instance names in your commands....you have the following commands.  The srvctl commnds can be run from any node  (ie you do not have to run it on node1 to shutdown instance1 and node2 to shutdown instance2).
Node1:    srvctl stop database –d master1
Node2:    srvctl stop database –d master2
You would run either:
Any node:    srvctl stop database -d master (assuming you database name is master...this will shut down both instances)
OR shutdown each instance individually
Any node:    srvctl stop instance -d master -i master1
Any node:    srvctl stop instance -d master -i master2
Same commnds as above to start using "srvctl start"...the following start commands do not look right to me:
srvctl start instance -d -i
srvctl start instance –d master1 –d master2