Cabling For Replication; Connecting Two 5005/4005 Series Storage Systems For Replication: Multiple Servers/One Switch/One Location - Seagate RealStor 5005 Series Hardware Installation

• Ensure that all ports assigned for replication are able to communicate appropriately with the replication system (see
the CLI Reference Guide for more information):
For virtual replication, use the CLI query peer-connection command.
• Allow two ports to perform replication. This permits the system to balance the load across those ports as I/O
demands rise and fall. On dual-controller enclosures, if some of the volumes replicated are owned by controller A and
others are owned by controller B, then allow at least one port for replication on each controller module—and possibly
more than one port per controller module—depending on replication traffic load.
• For the sake of system security, do not unnecessarily expose the controller module network port to an external
network connection.
Conceptual cabling examples are provided addressing cabling on the same network and cabling relative to physically
split networks.
IMPORTANT: Controller module firmware must be compatible on all systems used for replication. For license
information, see the Storage Management Guide

Cabling for replication

This section shows example replication configurations for iSCSI controller enclosures.
NOTE: Simplified versions of controller enclosures are used in cabling illustrations to show either 10GbE iSCSI or 1Gb/s
iSCSI host interface protocol, given that only the external connectors used in the host interface ports differ.
• Virtual replication supports iSCSI host interface protocol.
• The 2U enclosure rear panel represents 5005/4005 (4-port) models.
• iSCSI ports used for replication must be the same type (either both 10GbE or both 1Gb/s).
• Blue cables show I/O traffic and green cables show replication traffic.
Once the iSCSI-based systems are physically cabled, see the Storage Management Guide or online help for information
about configuring, provisioning, and using the optional replication feature.
Dual-controller configurations
Each of the following diagrams show the rear panel of two 5005 or 4005 controller enclosures equipped with
dual-controller modules.
Multiple servers/single network
Figure 37 shows I/O and replication occurring on the same physical network.
Controller enclosure
Figure 37 Connecting two 5005/4005 Series storage systems for replication: multiple servers/one switch/one location
52 Installation
Switch
Controller enclosure
To host server(s)