Compaq Infortrend Manual De Usuario

Enter a unique ID for any RAID controller no matter it is configured
in a single or dual-controller configuration.  The unique ID is
necessary for the following:

1.  A controller-specific identifier that helps controllers to identify

its counterpart in a dual-active configuration.

2.  The unique ID is generated into a Fibre channel WWN node

name for controllers or RAID systems using Fibre channel host
ports.  The node name is used to prevent host computers from
mis-addressing the storage system during the controller
failover/failback processes.

3.  MAC addresses for the controller’s Ethernet port that should be

taken over by a surviving controller in the event of controller
failure.

In redundant mode, configuration data is synchronized between
controllers.  Host ports on both controllers appear with the same
node name but each with a different port name (WWPN).

When a controller fails and a replacement is combined as the
Secondary controller, the node name will be passed down to the
Secondary controller.  The host will not acknowledge any
differences so that controller failback is totally transparent.

   

The unique identifier setting can be accessed from "View and Edit
Configuration Parameters" → "Controller Parameters" → "Controller
Unique ID."