Chapter 3: Connecting Hosts
Connect the Chassis to Hosts
QX and QXS Setup Guide
98
qualified SFF-8644 to SFF-8644 cable option when connecting to a 12 Gbit/s host. Use a qualified SFF-
8644 to SFF-8088 option when connecting to a supported 6 Gbit/s host.
Connecting Direct Attach Configurations
Table 8 below provides the available Hybrid QXS Supported Configurations.
Product
Chassis
Max Chassis
Max Drives
QXS-312
2U12
4
48
QXS-324
2U24
4
96
QXS-412
2U12
8
96
QXS-424
2U24
8
192
QXS-448
2U48
4
192
QXS-456
4U56 (4) & 2U12 (2)
6
248
QXS-648
2U48
4
192
QXS-656
4U56 (4) & 2U12 (2)
8
248
Note 1: Always consider the max drive number when mixing different chassis combinations.
Note 2: It is impossible to identify all possible chassis combinations within the hybrid QXS supported
configurations.
Table 8:
Available QXS Systems
Connect appropriate cables from the server’s HBAs to the controller module’s host ports as described
below, and shown in the following illustrations.
Fibre Chanel Host Connection
To connect to the QXS-3, QXS-4, and QXS-6 Series storage RAID chassis supporting (4/8/16 Gb) FC host
interface ports to a server HBA or switch—using the controller’s CNC ports—select a qualified FC SFP
option.
Qualified options support cable lengths of 1 m (3.28'), 2 m (6.56'), 5 m (16.40'), 15 m (49.21'), 30 m (98.43'),
and 50 m (164.04') for OM4 multimode optical cables and OM3 multimode FC cables, respectively. A 0.5 m
(1.64') cable length is also supported for OM3. In addition to providing host connection, these cables are
used for connecting a local storage system to a remote storage system via a switch, to facilitate use of the
optional replication feature.
