Connecting two storage systems to replicate volumes 29
Cabling for replication
This section shows example replication configurations for MSA 1050 FC or iSCSI controller enclosures. The following
illustrations provide conceptual examples of cabling to support Remote Snap replication.
NOTE: Simplified versions of controller enclosures are used in cabling illustrations to show host ports used for I/O or
replication, given that only the external connectors used in the host interface ports differ.
• Virtual replication supports FC and iSCSI host interface protocols.
• The 2U enclosure rear panel represents MSA 1050 models using FC or iSCSI SFPs.
• 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 MSA 1050 systems are physically cabled, see the SMU Reference Guide or online help for information about
configuring, provisioning, and using the optional Remote Snap feature.
Host ports and replication
IMPORTANT: MSA 1050 controller enclosures support dual-controller configuration only. A controller module must be
installed in each IOM slot to ensure sufficient airflow through the enclosure during operation.
Each of the following diagrams show the rear panel of two MSA 1050 FC or iSCSI controller enclosures equipped with
dual-controller modules.
IMPORTANT: MSA 1050 controllers support FC and iSCSI host interface protocols for host connection or for
performing replications.
Multiple servers/single network
The diagram below shows the rear panel of two MSA 1050 controller enclosures with both I/O and replication occurring
on the same physical network. With the replication configuration shown below, 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 17 Connecting two storage systems for Remote Snap: multiple servers/one switch/one location
The diagram below shows the rear panel of two MSA 1050 controller enclosures with I/O and replication occurring on
different physical networks. Use three switches to enable host I/O and replication. Connect one port from each controller
module in the left storage enclosure to the left switch. Connect one port from each controller module in the right storage
enclosure to the right switch. Connect one port from each controller module in each enclosure to the middle switch. Use
MSA 1050 Storage system
Switch To host server(s)
MSA 1050 Storage system
To Next Page
Loading...
