GPFS node adapter interface names

An adapter interface name refers to the hostname or IP address that GPFS™ uses to communicate with a node. Specifically, the hostname or IP address identifies the communications adapter over which the GPFS daemons or GPFS administration commands communicate.

The administrator can specify two node adapter interface names for each node in the cluster:

GPFS node name: Specifies the name of the node adapter interface to be used by the GPFS daemons for internode communication.
GPFS admin node name: Specifies the name of the node adapter interface to be used by GPFS administration commands when communicating between nodes. If not specified, the GPFS administration commands use the same node adapter interface used by the GPFS daemons.

These names can be specified by means of the node descriptors passed to the mmaddnode or mmcrcluster command and can later be changed with the mmchnode command.

If multiple adapters are available on a node, this information can be communicated to GPFS by means of the subnets parameter on the mmchconfig command.