User guide

Features

I/O Option Modules The two rear I/O option modules can contain a range of

different option modules. The LS module will detect the type

of option module installed. The available option modules

are:

Fibre Channel RAID Controller

A 1 x 2 FC to FC (1FC host port x 2 FC drive ports)

controller is available. Active / Active failover is supported

when redundant RAID controllers are used. The redundant

controllers can be installed in the same enclosure and have

shared FC device channels. The RAID Controller module

also provides an HSSDC expansion port for one of the

device loops. Correspondingly, a dual controller configu-

ration will provide port expansion for both device loops. The

voltage required for MIA support is provided by the RAID

controller’s DB9 connector.

I/O Expansion Module - Copper HSSDC

The I/O expansion module is used for JBOD applications.

This expansion module has two HSSDC connectors. The first

is the primary FC loop input port and the second is available

for FC loop expansion / input. A fibre channel loop back

terminator is not required. The I/O Expansion module should

also be installed in single RAID controller enclosures, if the

expansion to other enclosures is to be in dual loop mode.

I/O Expansion Module - Optical

The I/O expansion module is used for JBOD applications.

1GB/Sec Optical FC I/O Expansion Module has an SC

optical connector as the FC Loop Input port. Loop expansion

is supported by the HSSDC. A loop back terminator is not

required.