Managing HP Serviceguard for Linux Ninth Edition, April 2009

LAN Information
While a minimum of one LAN interface per subnet is required, at least two LAN
interfaces are needed to eliminate single points of network failure.
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:
Subnet Name
The IP address for the subnet. Note that 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 ifconfig after you
install the card.
IP Address
The IP address to be used on this interface.
An IPv4 address is a string of 4 digits separated with
decimals, in this form:
nnn.nnn.nnn.nnn
An IPV6 address is a string of 8 hexadecimal values
separated with colons, in this form:
xxx:xxx:xxx:xxx:xxx:xxx:xxx:xxx
For more details of IPv6 address format, see Appendix D
(page 317).
Kind of LAN Traffic
The purpose of the subnet. Valid types include the
following:
• Heartbeat
• Client Traffic
Label the list to show the subnets that belong to a bridged net.
This information is used in creating the subnet groupings and identifying the IP
addresses used in the cluster and package configuration files.
Shared Storage
SCSI can be used for up to four-node clusters; FibreChannel can be used for clusters
of up to 16 nodes.
FibreChannel
FibreChannel cards can be used to connect up to 16 nodes to a disk array containing
storage. After installation of the cards and the appropriate driver, the LUNs configured
on the storage unit are presented to the operating system as device files, which can be
used to build LVM volume groups.
Hardware Planning 95