Microsoft Office Tutorials and References
In Depth Information
Restrictions
Restrictions
DPM has to be installed on a dedicated server. It is best to make sure that DPM is the
only server role running on the server you use for it. You will run into issues if you
try to install DPM on a server with other roles on it. The following are the restrictions
you need to pay attention to when installing DPM:
• DPM should not be installed on a domain controller (not recommended)
• DPM cannot be installed on an Exchange server
• DPM cannot be installed on a server with System Center Operations
Manager installed on it
• The server you install on cannot be a node in a cluster
There is one exception—you can install DPM on a domain controller and make it
work but this is not supported by Microsoft.
Single Instance Store
Before you install DPM on your server, it is important to install a technology called
Single Instance Store (SIS). SIS will ensure you get the maximum performance out of
your disk space and reduce bandwidth needs on DPM.
SIS is a technology that keeps the overhead of handling duplicate files low. This
is often referred to as de-duplication . SIS is used to eliminate data duplication by
storing only one copy of files on backup storage media. SIS is used in storage, mail,
and backup solutions such as DPM. SIS helps to lower the costs of bandwidth when
copying data across a network as well as needed storage space.
Microsoft has used a single installation store in Exchange since version 4.0. SIS
searches a hard disk and identifies duplicate files. SIS then saves only one copy
of the files to a central location such as a DPM storage pool. SIS will then replace
other copies of the files with pointers that direct you to the copy of the files the SIS
repository already has stored.
Installing Single Instance Store (SIS)
The following procedure walks you through the steps required to install SIS:
1. Click Start and then click Run.
2.
In the Run dialog box, type CMD.exe and press OK:
 
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