Compaq External RAID Controller & Subsystem Infortrend, Руководство по эксплуатации

Страница: 170 / 347

Fibre Operation
8-7
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.