Connecting two storage systems to replicate volumes
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Cabling for replication
This section shows example replication configurations for CNC-based controller enclosures.
NOTE: Simplified versions of controller enclosures are used in cabling illustrations to show CNC host ports
used for I/O or replication, given that only the external connectors used in the host interface ports differ.
•
Replication supports FC and iSCSI host interface protocols.
•
The 2U enclosure rear panel represents DS6200/DS4200 (4-port) and DS2200 (2-port) models.
•
Host ports used for replication must use the same protocol (either FC or iSCSI).
•
Blue cables show I/O traffic and green cables show replication traffic.
Once the CNC-based systems are physically cabled, see the Storage Manager Guide or online help for information
about configuring, provisioning, and using the optional replication feature with out-of-band management.
Dual-controller configurations
Each of the following diagrams show the rear panel of two DS6200, DS4200, or DS2200 controller enclosures
equipped with dual-controller modules.
Multiple servers/single network
show I/O and replication occurring on the same physical network. With these
configurations, 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. The configuration would appear physically as a single network, while logically, it
would function as multiple networks.
Figure 69 Connecting two DS6200/DS4200 storage systems for replication: multiple servers/one switch/one
location
Figure 70 Connecting two DS2200 storage systems for replication: multiple servers/one switch/one location
Switch
To host server(s)
DS6200/DS4200 controller enclosure
DS6200/DS4200 controller enclosure
Switch
To host server(s)
DS2200 controller enclosure
DS2200 controller enclosure
