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Network Name
Enter an ASCII text string that identifies the network.
The network name can include alphabetic and numeric
characters and underscores. Use no more than 31
characters. The network name is arbitrary, but must be
used consistently for adapters on the same physical
network.
If several adapters share the same physical network,
make sure you use the same network name for each of
these adapters.
Network Attribute Indicate whether the network is public, private, or
serial. Press Tab to toggle the values. In the context of
HACMP, serial networks means "non-TCP/IP"; public
and private networks are TCP/IP networks. Ethernet,
Token-Ring, FDDI, and SLIP are public networks.
SOCC, ATM, and an SP Switch are private networks.
RS232 lines, target mode SSA loops, and target mode
SCSI-2 buses are serial networks.
Adapter Function
Indicate whether the adapter's function is service ,
standby , or boot . Press Tab to toggle the values. A node
has a single service adapter for each public or private
network. A serial network has only a single service
adapter.
A node can have none, one, or more standby adapters
for each public network. Serial and private networks do
not have standby adapters, with the exception of ATM
networks. ATM networks must be defined as private,
and therefore standby adapters are supported.
In an HACMP environment on the RS/6000 SP, the
ethernet adapters can be configured as service
adapters but should not be configured for IP address
takeover. Regarding the SP Switch, network, boot, and
service addresses used for IP address takeover are
ifconfig alias addresses used on the css0 network. See
the appendix entitled HACMP for the RS/6000 SP in the
HACMP Installation Guide Version 4.3 for more
information on adapter functions in an SP Switch
environment.
In an ATM network, the adapter function should be listed
as svc_s to indicate that the interface is used by
HACMP servers. Keep in mind that the netmask for all
adapters in an HACMP network must be the same.
HACMP Installation and Cluster Definition
103
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