HP Storage Mirroring V5.1 Software - Manual (Page 61)

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Simulating a
Connection
Storage Mirroring offers a simple way for you to simulate a connection in order to generate statistics
that can be used to approximate the time and amount of bandwidth that the connection will use when
actively established. This connection uses the TDU (Throughput Diagnostics Utility), which is a built-in
null (non-existent) target to simulate a real connection. No data is actually transmitted across the
network. Since there is no true connection, this connection type helps you plan for a disaster recovery
solution.
Gathering system information
Before and after simulating your connection, you may want to gather network and system
information specific to Storage Mirroring operations. Use DTInfo to automatically collect this data. It
gathers Storage Mirroring log files; Storage Mirroring and system registry settings; network
configuration information such as IP, WINS, and DNS addresses; and other data which may be
necessary in evaluating Storage Mirroring performance. The utility can be found on product CD or on
the HP web site.
1. Copy DTInfo.exe to the source machine where you are going to install Storage Mirroring and run
the TDU.
2. Run DTInfo.exe. It may take several mintues for DTInfo to finish processing.
3. After DTInfo is complete, the directory C:\Program Files\StorageWorks\Storage
Mirroring \ support will automatically be created containing a .zip file containing the
information gathered. The file name is based on the machine name. To distinguish this file from
the next time you run DTInfo, append a unique identifier, perhaps the date and time, to the end
of the file name.
Be sure and run DTInfo before and after your simulation.