![background image](http://html2.mh-extra.com/html/quantum/qx-series/qx-series_setup-manual_3502442128.webp)
Chapter 3: Connecting Hosts
Connect Two Storage Systems to Replicate Volumes
QX and QXS Setup Guide
113
Multiple Servers/One Switch/One Location
This section provides information on the rear panel of two RAID chassis with both I/O and replication
occurring on the same physical network.
Figure 103:
Multiple Servers/One Switch/One Location (2U)
6Gb/s
6Gb/s
S
S
A
S
S
A
6Gb/s
6Gb/s
S
S
A
S
S
A
S
)
s
(
r
e
v
r
e
s
t
s
o
h
o
T
h
c
t
i
w
Figure 104:
Multiple Servers/One Switch/One Location (4U)
6Gb/s
6Gb/s
6Gb/s
6Gb/s
S
)
s
(
r
e
v
r
e
s
t
s
o
h
o
T
h
c
t
i
w
Multiple Servers/Two Switches/One Location
This section provides information on the CNC host interface connections and CNC-based replication, with
I/O and replication occurring on different networks. For optimal protection, use two switches. Connect two
ports from each controller module to the first switch to facilitate I/O traffic, and connect two ports from each
controller module to the second switch to facilitate replication. Using two switches in tandem avoids the
potential single point of failure inherent to using a single switch; however, of one switch fails, either I/O or
replication will fail, depending on which of the switches fails.