Apply the patch to one node in the cluster at a time. When applying a non-rebooting patch, you do not need to first shut down the node receiving the patch.
Before applying the patch, check the Sun Cluster product web page for any special pre- or post-installation instructions.
Apply the patch on a single node.
| # patchadd patch-dir patch-id | 
Specifies the directory location of the patch.
Specifies the patch number of a given patch.
Verify that the patch has been installed successfully.
| # showrev -p | grep patch-id | 
Verify that the patch works, and that the node and cluster are operating normally.
Repeat Step 2 through Step 4 for the remaining cluster nodes.
| # patchadd 10-34567 ... # showrev -p | grep 10-34567 | 
If you need to back out a patch, see "7.2.4 How to Remove a Sun Cluster Patch".