Guidelines for Protecting Data using HP StorageWorks Storage Mirroring with Volume Shadow Copy Service (VSS) Application Note (T2558-96332, April 2009)

About this guide
This document is a Double-Take® application note. An application note provides guidelines on the
use of Double-Take in a specific environment.
This document contains:
Document Overview:Explains what an application note contains, how it should be used, what you
need to know before trying to use the application note, and where you can go for more information.
Solution Overview: Explains how the application works with Double-Take and describes the
considerations that you must weigh when implementing your Double-Take solution. Review this section
to make sure that you understand the theory involved with using Double-Take and your application.
Includes both basics, such as system requirements, as well as configuration and environment-specific
topics, such as interactions with specific clients or special considerations for WAN (Wide Area
Network) environments. Pay special attention to those topics that are directly related to your
environment.
Sample Implementations: Describes specific examples of how to use Double-Take for this solution.
This includes information about the specific system setup used in the sample implementation. Use these
procedures as a guideline for creating your own implementation. Because no two environments or
configurations are exactly the same, you will probably need to implement additional or different steps
than what is documented here in order to make the solution work in your environment.
Intended audience
This document is written for network and application administrators who have a working understanding
of the applications and environments where the Double-Take solution is to be deployed. You may
need to expand on the documented information in order to customize the solution to fit your
environment.
Before you use this application note, you should have an understanding of:
• Double-Take
• Volume Shadow Copy
Prerequisites
Application notes are intended to provide a framework for configuring a Double-Take solution in a
specific environment and to draw attention to decisions you will need to make when configuring your
solution.
Because there are an infinite number of possible configuration, network, and environment scenarios,
application notes contain general configuration guidelines as well as an example configuration
procedure that has been tested for a specific environment.
This document assumes that you are comfortable working with your operating system, Double-Take,
and Volume Shadow Copy.
Guidelines for Protecting Data using HP StorageWorks Storage Mirroring with Volume Shadow Copy
Service (VSS) 5