Managing Serviceguard Eighteenth Edition, September 2010

Server Number The series number; for example, rp8400 or
rx8620-32.
Host Name
The name to be used on the system as the host name.
Memory Capacity
The memory in MB.
Number of I/O slots
The number of slots.
Network Information
Serviceguard monitors LAN interfaces.
NOTE: Serviceguard supports communication across routers between nodes in the
same cluster; for more information, see the documents listed under “Cross-Subnet
Configurations” (page 41).
Serviceguard communication relies on the exchange of DLPI (Data Link Provider
Interface) traffic (for nodes on the same subnet) and UDP/TCP (User Datagram
Protocol/Transmission Control Protocol) and ICMP traffic between cluster nodes.
LAN Information
While a minimum of one LAN interface per subnet is required, at least two LAN
interfaces, one primary and one or more standby, are needed to eliminate single points
of network failure.
NOTE: In a cross-subnet configuration, in which the cluster spans subnets joined by
a router, a standby for each subnet is required. See “Cross-Subnet Configurations”
(page 41) for more information.
HP recommends that you configure heartbeats on all subnets, including those to be
used for client data.
Collect the following information for each LAN interface; see the Hardware
Configuration Worksheet (page 127) for an example:
Subnet Name
The IP address mask for the subnet. Note that,
except in cross-subnet configurations (page 41),
heartbeat IP addresses must be on the same
subnet on each node.
Interface Name
The name of the LAN card as used by this node
to access the subnet. This name is shown by
lanscan after you install the card.
124 Planning and Documenting an HA Cluster