HP Storage Mirroring Software - Manual (Page 49)

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8
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 the DTSetup Diagnostics utility to
automatically collect this data. It gathers Storage Mirroring log files, Storage Mirroring and system
settings, network configuration information, and other data which may be necessary in evaluating
Storage Mirroring performance.
1. Run the DTSetup command from the shell prompt.
2. Select option 4 for troubleshooting.
3. Select option 2 for diagnostics.
4. When you run DTSetup, it may take several mintues for it to finish processing. When it is
complete, a .tar.gz file will be created in /var/run/DT. The file name will have DTInfo with the
date and time.
Be sure and run the diagnostics before and after your simulation.
NOTE: Do not run DTSetup using the sudo command. Use a real root shell to launch DTSetup
instead, either by logging in as root on the console or by using the login session of a
non-privileged user to run su - to start a root shell.