HP-UX Serviceguard Heartbeat Configuration Solutions

hw path class drv card cpu cpu intr intr card

name cell ID cell type ID description

======================================================================

0/0/0/0 lan btlan N/A 4 N/A L 1 HP PCI 10/100Base-TX Core

0/0/1/0 ext_bus c720 N/A 1 N/A L 1 SCSI C895 Fast Wide LVD

0/0/2/0 ext_bus c720 N/A 2 N/A L 1 SCSI C87x Ultra Wide Single-Ended

1/10/1 lan btlan N/A 5 N/A L 1 HP PCI 10/100Base-TX 4 port

1/12/2 lan btlan N/A 7 N/A L 1 HP PCI 10/100Base-TX 4 port

1/14/1 lan btlan N/A 9 N/A L 1 HP PCI 10/100Base-TX 4 port

d) In the output example above, look for the hardware path obtained in the previous

step. It will be listed under the column labeled “hw path”. For example, the

hardware path for lan9 was found to be 1/12/2, and the corresponding processor

is listed as 7 under the “cpu ID” column.

e) Likewise, the above output shows that the processor ID for lan15 (hardware path =

1/14/1) is 9, and the processor ID for lan5 (hardware path = 1/10/1) is 5.

f) In this example lan9, lan15, and lan5 are on different processors (7, 9, and 5). In

this case, no further steps are necessary.

However, if you have heartbeat interfaces which overlap on CPUs (primary or

standby interfaces), you would need to follow the instructions in the section

“Managing Interrupts to Improve High Availability.”

If Your System has a Link Aggregate Interface for Serviceguard

NOTE Be sure you have determined that your system has a link aggregate interface by

completing “Ensure that the heartbeat interface drivers are on different processors” before

continuing here.

1. Enter the following command on the target system running HP ServiceGuard:

/usr/sbin/cmgetconf

2. Look at the resulting output from /usr/sbin/cmgetconf. It should look something like

this:

NETWORK_INTERFACE lan903

HEARTBEAT_IP 1.1.1.1

NETWORK_INTERFACE lan905

NETWORK_INTERFACE lan900

HEARTBEAT_IP 1.1.1.1

#Link Aggregate lan900 contains the following port(s):lan9, lan10

#Link Aggregate lan903 contains the following port(s):lan15, lan16

#Link Aggregate lan905 contains the following port(s):lan18, lan19

#Possible standby Network Interfaces for lan900:lan905

In the example above, the primary heartbeat interfaces are link aggregate lan900 and

lan903. lan900 is made up of 2 interfaces – lan9 and lan10. lan903 is made up of 2