Using Serviceguard Extension for RAC, 3rd Edition, May 2006

Maintenance and Troubleshooting
Replacing Disks
Chapter 4200
Use the following procedure to disconnect a node that is attached to the
bus with an in-line SCSI terminator or with a Y cable:
1. Move any packages on the node that requires maintenance to a
different node.
2. Halt the node that requires maintenance. The cluster will re-form,
and activity will continue on other nodes. Packages on the halted
node will switch to other available nodes if they are configured to
switch.
3. Disconnect the power to the node.
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.