Compaq Infortrend Redundant Controller Cache Coherency Channel RCC Channel, View Channel WWN

Limitation:

1.If host connection is made in FC-AL mode, there can be a total of “16” of Primary and Secondary IDs.

2.Although host connection in point-to-point mode is supported, problems might occur when passing IDs of the failed controller to its counterpart. HA failover software is required in this situation to redirect IO access during the controller failover operation.

Redundant Controller Cache Coherency Channel (RCC Channel):

A host channel can be selected and converted into a communications channel. To convert a drive channel, change it into host mode and then select "RCCOM." Details can be found in the proceeding discussions.

View Channel WWN

Port name is the unique eight-byte address assigned to a FC port.

The controller has multiple channels (I/O paths) and each channel is powered by an I/O processor. This function allows users to inspect the processor's node name and port name. Some management software running on host computers need these names to properly address a storage subsystem.

Fibre Operation 8-7