IBM 689912U Hardware Maintenance Manual - Page 227
Scripting, Changing Logical Unit Numbers, Test Group Specifications, Starting the Diagnostics Diskette
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specific area of memory. By selecting these limiting parameters, you reduce memory testing time. Scripting Scripting allows you to select specific groups of tests, testing parameters, and options. Your selection is saved for later use as a test Script. To set up a test script, first select all the appropriate test groups and specific tests you want to run from the Module Testing section under Diagnostics. You should also select appropriate testing parameters and options. See "Program Navigation" on page 215, for instructions to save a test script. Changing Logical Unit Numbers In some instances, you can have more than one logical unit number (LUN) for a particular module. LUNs represent individual devices within a test group or module. For example, you might have two diskette drives or two hard disk drives; or, you might have base, extended, shadow, and cache memory installed in the computer. This configuration might result in as many as four or five different LUNs in the Memory Test Group. Or you might have base, extended, shadow, and cache memory installed in the system which might result in as many as four or five different LUNs in the Memory Test Group. From either the Module Test Menu or the Test Group window, you can change to a different LUN (where applicable) by pressing the plus (+) key (next LUN), or the minus (−) key (previous LUN). Test Group Specifications In the upper-right-hand portion of the testing screen (or just the upper portion if you switched to an individual test group screen) are the specifications for the related test group. Note: In the Hard Disk Test Group specification area, if a software program was to compress your drive, the indicated size is the compressed size of the logical drive. Starting the Diagnostics Diskette 1. Insert the Diagnostics diskette into drive A. 2. Power-on the computer. 3. When the Diagnostics Main Menu is displayed, press Ctrl+A. (The screen will not change.) 4. Select Diagnostics; then, press Enter. 5. Follow the instructions that appear on your screen. If an error is displayed, go to "Symptom-to-FRU Index" on page 32. Reference Information 217