Reference Guide

Introduction 9
Optional software for the shared storage system includes:
• Data Progression—leverages cost and performance differences between
storage tiers, allowing the maximum use of lower-cost drives for stored
data, while maintaining high performance drives for frequently-accessed
data.
• Data Instant Replay—A Replay is a point-in-time copy of one or more
volumes. Once an initial Replay of a volume is taken, subsequent Replays
preserve pointers to data that has changed since the previous Replay. This
minimizes the amount of storage space required to preserve periodic
copies of a volume.
• Remote Instant Replay—replicates volumes to a remote Storage Center. It
offers two modes: asynchronous and synchronous.
Other Documents You May Need
WARNING: The safety information that shipped with your system provides
important safety and regulatory information. Warranty information may be
included within this document or as a separate document.
•The Rack Installation Guide included with your rack solution describes
how to install your system into a rack.
•The Getting Started Guide provides an overview of initially setting up your
system.
•The Dell Failover Clusters with Microsoft Windows Server 2008 Installation
and Troubleshooting Guide
provides information on deploying your cluster
with Windows Server 2008 operating systems.
•The Storage Center System Manager Setup Guide describes how to set up a
new Storage Center.
•The Storage Center System Manager User Guide provides instructions for
using Storage Center System Manager to manage storage.
•The Enterprise Manager User Guide provides instructions for managing
multiple Storage Centers.
• The HBA documentation provides installation instructions for the HBAs.
• Systems management software documentation describes the features,
requirements, installation, and basic operation of the software.