1. Replace the drive with the following instructions located here. Be sure to note the WWN of the failed HDD, as as well as the replacement HDD.
2. Open the cluster configuration file with your favorite editor (we will use vim in this example)
# vim /opt/HAC/RSF-1/etc/config
3. Take note of the “Machines section”. This is where we will be making our edit.
DISCLAIMER: These instructions must be followed exactly as they are stated, or you risk downtime if the config file is edited incorrectly.
Example “Machines section” shown below:
# Machines section
DISC zstax02 /dev/rdsk/c0t5000C500409BD39Bd0s0:518:512 TAG pool1
DISC zstax02 /dev/rdsk/c0t5000C5003C9AE94Fd0s0:518:512 TAG pool0
DISC zstax02 /dev/rdsk/c0t5000C5003CA49C3Fd0s0:518:512 TAG pool0
DISC zstax02 /dev/rdsk/c0t5000C500409B084Fd0s0:518:512 TAG pool1
DISC zstax01 /dev/rdsk/c0t5000C500409BD39Bd0s0:512:518 TAG pool1
DISC zstax01 /dev/rdsk/c0t5000C5003C9AE94Fd0s0:512:518 TAG pool0
DISC zstax01 /dev/rdsk/c0t5000C5003CA49C3Fd0s0:512:518 TAG pool0
DISC zstax01 /dev/rdsk/c0t5000C500409B084Fd0s0:512:518 TAG pool1
In this example, we need to replace c0t5000C500409BD39Bd0. It has been highlighted in red.
4. Replace the old WWN with the replacement WWN. You need to do this for both instances of the WWN
5. Save and exit the file.
6. On the other cluster node, make the exact same changes to the configuration file.
7. Distribute the updated config file.
# /opt/HAC/RSF-1/bin/config_dist --hot /opt/HAC/RSF-1/etc/config <node1> <node2>
<node1> and <node2> are the machine names, ex. zstax01, zstax02
8. The updated config file should have been served out to both nodes, and the new heartbeat device should be up and running. You can check this via NMV, or with rsfcli:
# /opt/HAC/RSF-1/bin/rsfcli status
9. Look for the updated WWN and make sure the status is “Up”