Managing Serviceguard 11th Edition, Version A.11.16, Second Printing June 2004

Planning and Documenting an HA Cluster
Cluster Configuration Planning
Chapter 4150
IP notation indicating the subnet that will carry the
cluster heartbeat. Note that heartbeat IP addresses
must be on the same subnet on each node. A heartbeat
IP address can only be an IPv4 address.
If you will be using VERITAS CVM disk groups for
storage, you can only use a single heartbeat subnet. In
this case, the heartbeat should be configured with
standby LANs or as a group of aggregated ports.
NOTE The use of a private heartbeat network is not advisable
if you plan to use Remote Procedure Call (RPC)
protocols and services. RPC assumes that each network
adapter device or I/O card is connected to a route-able
network. An isolated or private heartbeat LAN is not
route-able, and could cause an RPC request-reply,
directed to that LAN, to risk time-out without being
serviced.
NFS, NIS and NIS+, and CDE are examples of RPC
based applications that are frequently used on HP-UX.
Other third party and home-grown applications may
also use RPC services directly through the RPC API
libraries. If necessary, consult with the application
vendor to confirm its usage of RPC.
STATIONARY_IP
The IP address of each monitored subnet that does not
carry the cluster heartbeat. You can identify any
number of subnets to be monitored. If you want to
separate application data from heartbeat messages,
define a monitored non-heartbeat subnet here.
A stationary IP address can be either an IPv4 or an
IPv6 address. For more details of IPv6 address format,
see the Appendix , “IPv6 Address Types,” on page 424
FIRST_CLUSTER_LOCK_PV, SECOND_CLUSTER_LOCK_PV
The name of the physical volume within the Lock
Volume Group that will have the cluster lock written
on it. This parameter is FIRST_CLUSTER_LOCK_PV for