Quantum QXS G2 Series, Hardware Installation And Maintenance Manual

Page: 86 / 246

74 QXS G2 Hardware Installation and Maintenance Guide
• If the customer changes SFPs, you must use the CLI (not the disk management utility, GUI) to
specify which ports will use FC or iSCSI.
• It is best to do this before inserting the SFPs into the CNC ports (see Change CNC Port Mode on
page 98 for instructions).
Fibre Channel (FC) Protocol
NOTE: A FC protocol connectivity kit must be purchased from Quantum; it contains qualified SFPs
and cables to support the FC protocol.
The QXS-G2-312, QXS-G2-324, QXS-G2-412, QXS-G2-424, and QXS-G2-484 RAID chassis support two
controller modules using the Fibre Channel interface protocol for host connection.
• The QXS-G2-312 and QXS-G2-324 FC controller module provides two host ports.
• The QXS-G2-412, QXS-G2-424, and QXS-G2-484 FC controller module provides four host ports.
• CNC ports are designed for use with an FC SFP supporting data rates up to 16Gb/s.
The controllers support Fibre Channel Arbitrated Loop (public or private) or point-to-point topologies.
Loop protocol can be used in a physical loop or for direct connection between two devices.
Point-to-point protocol is used to connect to a fabric switch. Point-to-point protocol can also be used
for direct connection, and it is the only option supporting direct connection at 16Gb/s.
See the
set host-parameters
command within the
QXS G2 CLI Reference Guide
for command
syntax and details about parameter settings relative to supported link speeds. Fibre Channel ports are
used for attachment to FC hosts directly, or through a switch used for the FC traffic. The host
computer must support FC and optionally, multipath I/O.
The Fibre Channel ports are used in either of two capacities:
• To connect two storage systems through a switch for use of replication.
• For attachment to FC hosts directly, or through a switch used for the FC traffic.
The first usage option requires valid licensing for the replication feature, whereas the second option
requires that the host computer supports Ethernet, FC, and optionally, multipath I/O.
TIP:
Use the disk management utility (GUI) to set FC port speed. Within the
QXS G2 Disk
Management Utility User Guide
, see the topic about configuring host ports.
Use the
set host-parameters
CLI command to set FC port options, and use the
show ports
CLI
command to view information about host ports.
10GbE iSCSI Protocol
The QXS-G2-312, QXS-G2-324, QXS-G2-412, QXS-G2-424, and QXS-G2-484 RAID chassis 10GbE iSCSI
controllers support two controller modules using the Internet SCSI interface protocol for host
connection.
• The QXS-G2-312 and QXS-G2-324 10GbE iSCSI controller module provides two host ports.
• The QXS-G2-412, QXS-G2-424, and QXS-G2-484 10GbE iSCSI controller module provides four
host ports.
• CNC ports are designed for use with a 10GbE iSCSI SFP supporting data rates up to 10Gb/s, using
either one-way or mutual CHAP (Challenge-Handshake Authentication Protocol).