HP ProLiant ML310 G3 Data Protection Storage Server - Manual (Page 21)

Expanding DP Storage Server to support additional file servers
Your DP Storage Server ships with a full copy of Microsoft System Center
Data Protection Manager (DPM) 2006, which includes licenses to back
up three network file servers. Each file server in the DPM protection group
must have a valid license.
To be licensed to back up more than three file servers, you must order an
additional Microsoft System Center Data Protection Management License
2006 (DPML) (p/n 403557–B21). Each DPML allows you to back up an
additional server. For example, to support six additional servers, order
six additional DPMLs. This would license you to support a total of nine
file servers.
You can obtain additional DPMLs from your authorized HP sales channel.
When you expand the DP Storage Server to support additional network
file servers, keep in mind the maximum amount of data that the DP
Storage Server can handle during each backup session. HP and Microsoft
recommend implementing 1.5 times the available capacity on your
disk-to-disk backup target; however this multiplier varies based on the rate
that data changes on your network. For example, if you need to protect 1
TB of data, you will require 1.5 TB available capacity on your DP Storage
Server.
NOTE:
The SATA-based DL100 G2 DP Storage Server is optimized for total
configurations of less than 7 TB. If you need to back up more than 7 TB
of file data, HP recommends either adding another DP Storage Server
to distribute the workload or upgrading to the SCSI-based DL380 9TB
DP Storage Server. SCSI-based configurations can adequately scale to
20 TB of total capacity, after which HP recommends adding another DP
Storage Server to distribute the workload.
To update the file server agent licenses in the DPM interface:
1. From the DPM 2006 main window, select Action>Update Agent.
The Update Agent License window opens.
HP ProLiant Data Protection Storage Server user guide 21