HP Device Manager 4.5 - Deployment Guide
4000 MB ÷ 3.5 MBps ÷ 60 sec per min ≈ 20 minutes to transfer the image file
The actual imaging task takes longer because there are extra steps before and after the file transfer. However, you can start
another batch without influencing the previous batch because the extra steps do not need much bandwidth. In this example,
the recommended value would be 30 units per batch and 30 minutes between batches because leaving a buffer is
recommended. The thin client OS type makes no difference; only the image size makes a difference.
HPDM supports FTP, FTPS, SFTP, and SMB protocols for transferring files. Compared to FTP, FTPS (FTP over SSL) is slower,
and SFTP (SSH File Transfer Protocol) is the slowest. If you use these protocols for repositories, set a larger amount for each
batch and a longer interval between batches to make full use of bandwidth.
Database size
The disk space usage of the database grows with the device and task amount. Calculate the required disk space with the
following pattern:
• The initial disk space is less than 50 MB.
• Add an additional 100 MB for every 1,000 devices.
• Add an additional 1 MB for every 100 tasks.
Database latency
HP recommends deploying the HPDM Server as close to the database server as possible because the network latency
between them has significant impact on the performance. HPDM Console users will experience obvious delays if the
network latency between the HPDM Server and database is higher than 30 milliseconds.
Simultaneously connected users
There is no significant increase of memory or CPU usage on the HPDM Server for any additional, connected HPDM Consoles.
However, requires more resources for database access and communication.
The HPDM Server spends an additional 3 minutes 30 seconds to notify for 10,000 tasks for each addition HPDM Console. Do
not to have too many connected HPDM Consoles.
Console startup
This tip speeds up the startup process of the HPDM Management Console.
Reducing the visible task amount
The HPDM Console takes time to render task summaries when initializing. Reduce the amount of tasks to view for both
Manual Tasks and Rule Tasks of each OS tab before closing the HPDM Console by changing the following setting.
Figure 3. Setting number of tasks to view
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