Quantum QXS G2 Series, Hardware Installation And Maintenance Manual

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100 QXS G2 Hardware Installation and Maintenance Guide
Host Ports and Replication
QXS-G2-312, QXS-G2-324, QXS-G2-412, QXS-G2-424, and QXS-G2-484 RAID chassis controller
modules can use qualified SFP options of the same type, or they can use a combination of qualified
SFP options supporting different interface protocols. If you use a combination of different protocols,
then host ports 0 and 1 are set to FC (either both 16Gb/s or 8Gb/s), and ports 2 and 3 must be set to
iSCSI (either both 10GbE or both 1Gb). FC and iSCSI ports can be used to perform I/O or replication.
IMPORTANT: QXS-G2-312, QXS-G2-324, QXS-G2-412, QXS-G2-424, and QXS-G2-484 RAID chassis
support dual-controller configuration only. If a partner controller fails, the storage system will fail
over and run on a single controller module until the redundancy is restored. A controller module must
be installed in each slot to ensure sufficient airflow through the chassis during operation.
Each of the following diagrams show the rear panel of two QXS-G2-312, QXS-G2-324, QXS-G2-412,
QXS-G2-424, and QXS-G2-484 RAID chassis equipped with dual-controller modules. Some of the
diagrams show 2U chassis, while others show 5U chassis. The controller modules can use qualified
SFP options of the same type, or they can use a combination of qualified SFP options supporting
different interface protocols.
IMPORTANT: QXS-G2-312, QXS-G2-324, QXS-G2-412, QXS-G2-424, and QXS-G2-484 RAID chassis
support FC and iSCSI host interface protocols for host connection or for performing replications.
Multiple Servers/Single Same Network
Figure 85 shows the rear panel of two 2U chassis with I/O and replication occurring on the same
physical network. Figure 87 on page 101 shows the rear panel of two 5U chassis with I/O and
replication occurring on the same physical network.
With the replication configurations shown in each of these figures, Virtual Local Area Network (VLAN)
and zoning could be employed to provide separate networks for iSCSI and FC, respectively. Create a
VLAN or zone for I/O and a VLAN or zone for replication to isolate I/O traffic from replication traffic.
Either or these configurations would appear physically as a single network, while logically, either
configuration would function as multiple networks.
Connecting Two 2U Storage Systems (4-Host Ports) for Replication
Figure 85 provides an illustration of connecting two 2U12/2U24 RAID chassis (4-host ports per
controller, storage systems) for replication (multiple servers/one switch/one location)..
Figure 85
Connecting Two 2U Storage Systems (4-Host Ports) for Replication
RAID Chassis
RAID Chassis
Switch
To Host Server(s)