Cabling For Replication; Connecting Two Ds6200/Ds4200 Storage Systems For Replication: Multiple Servers/One Switch/One Location; Connecting Two Ds2200 Storage Systems For Replication: Multiple Servers/One Switch/One Location - Lenovo ThinkSystem DS Series Hardware Installation And Maintenance Manual

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
Figure 69 and
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.
DS6200/DS4200 controller enclosure
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
Figure 70 show I/O and replication occurring on the same physical network. With these
Switch
DS2200 controller enclosure
Switch
Connecting two storage systems to replicate volumes
DS6200/DS4200 controller enclosure
To host server(s)
DS2200 controller enclosure
To host server(s)
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