HP StorageWorks HSG60 and HSG80 Array Controller and Array Controller Software Troubleshooting Guide (EK-G80TS-SA. C01, March 2005)

Utilities and Exercisers
119HSG60 and HSG80 Array Controller and Array Controller Software Troubleshooting Guide
Disk Inline Exerciser (DILX)
Use DILX to check the data transfer capability of a unit (which may be composed
of one or more disk drives).
Checking for unit problems
DILX generates intense read and write loads to the unit while monitoring drive
performance and status. Run DILX on as many units as desired; however, since
this utility creates substantial I/O loads on the controller, HP recommends
stopping host-based I/O activity during the test.
Note: DILX cannot be run on Snapshot units (ACS V8.8S) or remote copy sets (ACS
V8.8P only).
Finding a unit in the subsystem
To find a unit or device in the subsystem:
1. Connect a PC or a terminal to the controller maintenance port.
2. Show the devices that are configured on the controller with the following CLI
command:
SHOW UNITS
3. Find the specific device in the enclosure with the following CLI command:
LOCATE unit-number
This command causes the device fault LED to Flash continuously.
4. Enter the following CLI command to turn off the LED:
LOCATE CANCEL
Testing the read capability of a unit
To test the read capability of a unit:
1. From a host console, dismount the logical unit that contains the unit being
tested.
2. Connect a terminal to the controller maintenance port that accesses the unit
being tested.