Using Serviceguard Extension for RAC, 4th Edition, February 2007

Maintenance and Troubleshooting
Replacing Disks
Chapter 4210
4. Disconnect the node from the in-line terminator cable or Y cable if
necessary. The other nodes accessing the bus will encounter no
problems as long as the in-line terminator or Y cable remains
connected to the bus.
5. Replace or upgrade hardware on the node, as needed.
6. Reconnect the node to the in-line terminator cable or Y cable if
necessary.
7. Reconnect power and reboot the node. If AUTOSTART_CMCLD is set to 1
in the /etc/rc.config.d/cmcluster file, the node will rejoin the
cluster.
8. If necessary, move packages back to the node from their alternate
locations and restart them.