Managing Serviceguard 14th Edition, June 2007

Troubleshooting Your Cluster
Replacing LAN or Fibre Channel Cards
Chapter 8398
Replacing LAN or Fibre Channel Cards
If a LAN or fibre channel card fails and the card has to be replaced, you
can replace it on-line or off-line depending on the type of hardware and
operating system you are running. It is not necessary to bring the cluster
down to do this.
Off-Line Replacement
Follow these steps to replace an I/O card off-line.
1. Halt the node by using the cmhaltnode command.
2. Shut down the system using /usr/sbin/shutdown, then power down
the system.
3. Remove the defective I/O card.
4. Install the new I/O card. The new card must be exactly the same card
type, and it must be installed in the same slot as the card you
removed.
5. Power up the system.
6. If necessary, add the node back into the cluster by using the
cmrunnode command. (You can omit this step if the node is
configured to join the cluster automatically.)
On-Line Replacement
If your system hardware supports hotswap I/O cards, you have the option
of replacing the defective I/O card on-line, using the HP-UX olrad
command. The new card must be exactly the same card type as the card
you removed. Serviceguard will automatically recover a LAN card once it
has been replaced and reconnected to the network.
For more information, see the olrad (1m) manpage and the Interface
Card OL* Support Guide at http://docs.hp.com -> High
Availability -> System Administration. See also “Removing a LAN
or VLAN Interface from a Node” on page 358.