Managing Serviceguard 12th Edition, March 2006
Troubleshooting Your Cluster
Replacement of LAN or Fibre Channel Cards
Chapter 8 369
Replacement of LAN or Fibre Channel Cards
If you have a LAN or fibre channel card failure, which requires the LAN
card 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
The following steps show how to replace an I/O card off-line. These steps
apply to both HP-UX 11.0 and 11i:
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, and if the system is
running HP-UX 11i (B.11.11 or later), you have the option of replacing
the defective I/O card on-line. This will significantly improve the overall
availability of the system. To do this, follow the steps provided in the
section “How to On-line Replace (OLR) a PCI Card Using SAM” in the
document Configuring HP-UX for Peripherals. The OLR procedure also
requires that the new card must be exactly the same card type as the
card you removed to avoid improper operation of the network driver.
Serviceguard will automatically recover a LAN card once it has been
replaced and reconnected to the network.