HP StorageWorks SAN Virtualization Services Platform administrator guide (5697-0204, January 2010)

Recommendations
Practical measurements with the VSM show that it behaves properly as long as the average write
response time to the setup volume does not exceed 20mSec (or 20000 micro seconds in the
Performance Monitor counter).
Monitoring DPM performance
You can use the Diagnostics panel in the DPM Management GUI to monitor the performance of a
DPM. Use a web browser to access the GUI and log in with a user name and password. Choose the
Diagnostics function on the left pane, then select Plot, Object Type Port, Value all (this can take awhile),
and then choose (or mark) the ports, and then select a variable (for example, Rx Bytes or Tx Bytes).
To activate, click below the Object Type, select port, click below value, and then select all.
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