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

2 Sample Implementation
This section describes an example of how to configure Storage Mirroring and Volume Shadow Copy.
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.
To protect your data using Storage Mirroring with VSS, you will:
• Create the replication set and connect to the target.
• Set up a snapshot strategy suitable for your environment.
Requirements
• A licensed copy of HP StorageWorks Storage Mirroring version 4.4 or later
• A licensed copy of Microsoft Windows Server 2003, optionally with Service Pack 1 (SP1) or later
NOTE:
With SP1, you can use the Revert command to restore not only a specific file, but the entire volume.
However, you should use caution if updating an entire volume, since this could cause an overwrite
of current data.
Because the driver for Volume Shadow Copy is started before the driver for Storage Mirroring, if you
revert any files on the source that are contained in your replication set, Storage Mirroring will not be
aware of the revert and, therefore, the file change will not be replicated to the target. The file change
will be mirrored to the target during the next mirroring process.
Prepare your source and target
Prior to performing these steps, prepare your source and target machines:
• Ensure that Storage Mirroring is installed on the source and target machines. For more information,
see the HP StorageWorks Storage Mirroring User’s Guide.
• Ensure that VSS is enabled on the source and/or target as appropriate for your configuration.
Create a replication set and connect to the target
1. On the source, select Start, Programs, Storage Mirroring, Management Console.
2. Double-click your source machine to log on.
3. If database files are being replicated, enable Block Checksum All Files. If you are not replicating
database files, continue with step 4.
a. Right-click the source and select Properties.
b. On the Source tab, enable Block Checksum All Files on a Difference Mirror and click OK.
Guidelines for Protecting Data using HP StorageWorks Storage Mirroring with Volume Shadow Copy
Service (VSS) 15