Administrator Guide

Table Of Contents
Remote Storage Centers and Replication
QoS
A remote Storage Center is a Storage Center that is configured to communicate with the local Storage Center over the Fibre
Channel and/or iSCSI transport protocols. Replication Quality of Service (QoS) definitions control how bandwidth is used to
send replication and Live Volume data between local and remote Storage Centers.
Topics:
Connecting to Remote Storage Centers
Creating and Managing Replication QoS Definitions
Connecting to Remote Storage Centers
A remote Storage Center is a Storage Center that is configured to communicate with the local Storage Center over the Fibre
Channel and/or iSCSI transport protocols.
Storage Centers can be connected to each other using Fibre Channel, iSCSI, or both. Once connected, volumes can be
replicated from one Storage Center to the other, or Live Volumes can be created using both Storage Centers.
Connecting Storage Centers Using Fibre Channel
When Storage Centers are connected to the same Fibre Channel fabric and zoning is configured correctly, each Storage Center
automatically appears as a remote Storage Center; no additional configuration steps are required.
Steps
1. Connect both Storage Centers to the same Fibre Channel fabric.
2. Configure Fibre Channel zoning to allow the Storage Centers to communicate. When communication is established, each
Storage Center automatically appears as a remote Storage Center.
Connecting Storage Centers Using iSCSI
The following tasks describe how to add and remove iSCSI connections to remote Storage Centers.
About this task
NOTE: For user interface reference information, click Help.
Configure an iSCSI Connection for Remote Storage Systems
Add an iSCSI connection to a remote Storage Center or PS Group if you want to transfer replication and/or Live Volume data
using the iSCSI protocol.
Prerequisites
The Storage Center or PS Group for which you want to configure iSCSI connections must be added to Storage Manager.
Remote connections from Storage Center to PS Group require virtual fault domains.
If the local Storage Center iSCSI ports are configured for virtual port mode and the ports are located behind a router that
performs network address translation (NAT), NAT port forwarding must be configured for the iSCSI fault domain.
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