When planned outages occur, use pfsctl commands to shut down the
instance on the node where maintenance will be performed. The next procedure
contains general instructions for shutting down both the primary role node
and secondary role node. When one node is unavailable, Oracle RAC Guard
cannot perform failover.Planned Outage on the Secondary Node
The procedure for using pfsctl commands for a planned outage on
the secondary node follows:
- Stop the secondary instance. Use commands similar to the following:
# pfsctl
PFSCTL> stop_secondary
- When the command completes you will see output similar to the
following:
stop_secondary command succeeded.
-
Complete the desired maintenance on the secondary node.
- Restore the secondary instance to the secondary node. Use the following
command:
PFSCTL> restore
The output is similar to:
restore command succeeded.
Planned Outage on the Primary Node
For a planned outage on the primary node use the following pfsctl
commands:
- Move the primary role to the secondary instance. Use commands similar
to the following:
# pfsctl
PFSCTL> move_primary
When the command completes you will see output similar to the
following:
move_primary command succeeded.
-
Complete the desired
maintenance on the former primary node.
- Restore the secondary role to the former primary node. Use the
following command:
PFSCTL> restore
When the command completes you will see output similar to the
following:
restore command succeeded.
(Optional) Move the primary role back to the original primary node and
restore the secondary role to the original secondary node. Use the
following command:
PFSCTL> switchover
When the command completes you will see output similar to the
following:
switchover command succeeded.
 |
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