Administrator Guide

Table Of Contents
Remote Storage Centers and Replication
Bandwidth Controls
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 Bandwidth Controls 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 Bandwidth Controls 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.
Configure an iSCSI Connection for Remote Storage Systems
Add an iSCSI connection to a remote Storage Center to transfer replication and/or Live Volume data using the iSCSI protocol.
Prerequisites
The Storage Center for which you want to configure iSCSI connections must be added to Unisphere Central.
Remote connections from Storage Center require virtual fault domains.
In virtual port mode , when the ports are located behind a router that performs NAT, NAT port forwarding must be
configured for the iSCSI fault domain.
If you intend to use CHAP authentication for iSCSI replication traffic, the iSCSI fault domains that are used for replication on
each Storage Center have CHAP enabled.
Steps
1.
Click the
HOME menu.
The Unisphere Central Home page is displayed.
If a Storage Center is selected from the drop-down list in Unisphere Central, click (Home).
2. From the
Data Mobility menu, click Replications & Live Volumes.
8
210 Remote Storage Centers and Replication Bandwidth Controls