Dell PowerVault DP600 - Manual (Page 62)

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Choosing a Replica Creation Method
When you create a protection group, you must choose a method for creating the replicas for the
volumes included in the group. Replica creation involves copying all the data selected for
protection to the DPM server and then running synchronization with consistency check for each of
the replicas.
DPM can create the replicas automatically over the network, or you can create the replicas
manually by restoring the data from removable media such as tape. Automatic replica creation is
easier, but, depending on the size of the protected data and the speed of the network, manual
replica creation can be faster
On the Choose Replica Creation Method page, select when you want DPM to replicate your
data.
To choose a replica creation method
1. Select the Automatically option to have DPM replicate the data across the network. For
large replica creation jobs, you might want to schedule the job to run only during periods
of light network traffic.
• Select Now to have DPM immediately begin copying the data from the computers
you are protecting to the DPM server.
• Select Later to schedule the initial copy at a later time—most likely after business
hours.
• Select Manually to use tape, USB storage, or other portable media to transfer the
baseline data to the DPM server.
This is the preferred option when synchronizing large amounts of data across a slow
WAN connection for the first time. For more information about manual replica
creation, in the DPM 2007 Operations Guide, see "Creating Replicas Manually"
in Managing Performance (http://go.microsoft.com/fwlink/?LinkId=91859).
If you choose manual replica creation, you must know the details of the source
(protected server) and the replica path (DPM server). It is critical that you retain the
same directory structure and properties such as time stamps and security
permissions for the data that you are protecting.
2. Click Next.
Optimizing Performance
DPM 2007 provides several methods you can use to modify protection workloads and optimize
performance. To optimize the performance of the protection group, on the Summary page, click
the optimize performance link to launch the Optimize Performance dialog box.