HP StorageWorks HSG60 and HSG80 Array Controller and Array Controller Software Command Line Interface Reference Guide (EK-G80CL-RA. C01, March 2005)

CLI Command Descriptions
192 HP StorageWorks HSG60 and HSG80 Array Controller and Array Controller Software
Command Line Interface Reference Guide
In Multiple-bus Failover mode, all four ports are independent, and each has its
own port ID. The port IDs are assigned as follows:
■ Controller B port 1 = node ID + 1
■ Controller B port 2 = node ID + 2
■ Controller A port 1 = node ID + 3
■ Controller A port 2 = node ID + 4
If one of the pair of controllers in a dual-redundant configuration is replaced,
the remaining controller remembers the node ID. If the replacement controller
is installed, the in-place controller copies the node ID to the replacement
controller, and the replacement controller automatically assumes the correct
port IDs.
If a situation occurs that requires the node ID to be reset, it can be done
through the CLI by specifying the NODE_ID parameter in the SET
controller command. The node ID must be reset to the number on the
enclosure sticker. (The sticker calls it the WWN.) The sticker also contains a
checksum, which verifies the ID number. If the node ID is entered, both
controllers assume the correct port IDs automatically. Figure 6 on page 193
shows the location of the sticker.