HP ProLiant DL100 G2 Data Protection Storage Server administration guide (June 2006)

W A N
End u s e r
r e s t o r e
Sn a p s h o t image
o f f ile s e r v e r s
MSA Arrays
(provided with some DP Storage Servers)
DP Storage
Server
To tape
File
servers
10692a
Figure 2 C entralized branch office environment
DPM end-u
ser recovery option
The DP M en
d-user recovery feature allows end users to independently recover data by retrieving shadow
copies of
files. To use this feature, you must enable it on your Data Protection Storage Server a nd on
the end-
user client PC. For detailed instructions on enabling the end-user recovery function, please
see Micr
osoft DPM help .
Supporting Single Instance Storage on protected file servers
This section only applies if one or m ore of your protected file servers are running Single Instance Storage
(SIS) on a volume protected by DPM. By default, DPM does not support SIS on a protected volume, but
hotfixes are provided in the c:\hpnas\components\DPM\SIS-QFE folder that can b e app lied.
SIS works by searching a hard disk volume to identify duplicate files. If SIS finds identical files, it saves
one copy of the file to a central repository, c alled the SIS Common Store, and replaces other copies
with pointers to the stored versions. If SIS linked files are backed up by D PM, the link information is not
restored properly when the files are restored. To resolve this problem follow the procedure below.
1. Install the provided DataProtectionManager2006-KB917642.exe on the Data Protection
Storage Server. This hotfix cannot be applied until the D PM m i ni-setup h as been performed. DPM
mini-setup is discussed in your Data Protection Storage Server installation guide.
2. Go to the Management/Agents tab of the DPM user interface. Update the agent on the protected
file ser ver that uses SIS.
3. Install the provided WindowsServer2003-KB913109.exe hotfix on both the Da ta Protection
Storage Server and the protected server.
4. Go to the Protection tab on the D PM user interface and run a synchronization with consistency check
on the protected volumes.
HP ProLiant DL100 G2 Data Protection Storage Server
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