TERMINATE AFTER A MAXIMUM NUMBER OF PASSES THROUGH THE TESTS OR MAXIMUM NUMBER OF SPECIFIC OPERATION CODES (SVC)

TO ALTER THE TERMINATION MODE, ENTER YES. TO CONTINUE, ENTER NO.

CHANGE TERMINATION MODE (YES, NO)? NO

13. Since some of the disk tests take a long time to complete, you may want to change the termination mode when executing a disk diagnostic session. Enter YES.

- The following screen displays appear successively:

THE 'EXECUTE CONTINUOUSLY' TERMINATION MODE CAUSES THE TASK TO EXECUTE UNTIL YOU ENTER A KD COMMAND VERB.

ENTER 'YES' TO SELECT THIS TERMINATION MODE.

ENTER 'NO' TO CONTINUE.

EXECUTE CONTINUOUSLY (YES, NO)? NO

NOTE

If you select continuous execution, be sure to terminate the task with a Kill Diagnostic Task (KD) command verb and the driver with a Quit Online Diagnostics (aD) command verb when the session has run as long as you want.

IF YOU WANT THE DEVICE DIAGNOSTIC TASK TO EXECUTE FOR A NUMBER OF MINUTES LESS THAN OR EQUAL TO 32767, ENTER THE NUMBER.

IF NOT, ENTER THE WORD 'IGNORE'. THE TASK TERMINATES WHEN THE TIME IS UP. IF THE NUMBER OF MINUTES IS MORE THAN 32767, ENTER 'R' FOR REJECT AND SELECT THE 'EXECUTE CONTINUOUSLY' TERMINATION MODE.

ENTER NUMBER OF MINUTES FOR TASK EXECUTION (1 •. 32767)? IGNORE IF YOU WANT THE TASK TO STOP WHEN A MINIMUM NUMBER OF ERRORS HAVE OCCURRED, ENTER THE NUMBER. IF NOT, ENTER 'IGNORE'.

ENTER MINIMUM NUMBER OF ERRORS FOR TERMINATION (1 .• 32767)? IGNORE

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IF YOU SELECTED THE TEST EXECU,ION MODE, ENTER THE MAXIMUM NUMBER OF PASSES THROUGH THE TESTS. IF YOU SELECTED THE SPECIFIC SVC OPERATION EXECUTION MODE, ENTER THE MAXIMUM NUMBER OF TIMES TO REPEAT THAT SVC SUBOPCODE. THE DIAGNOSTIC TASK ENDS WHEN THE NUMBER YOU ENTER IS REACHED.

ENTER NUMBER OF PASSES OR SPECIFIC OPERATIONS (1 •. 32767)? 1

14. Accept the default in each case. The default termination is one pass through all the tests. For many sessions, however, you may want to respond YES to the prompt for con-tinuous operation and stop the test at your discretion with a KD command verb.

- The diagnostics driver now has all the information it needs to start the disk diag-nostic task. When the task starts, the driver returns the command prompt (step 6) to the screen.

The driver is monitoring the diagnostic message queue and can be called back to the terminal with the Command key. If you want to leave the terminal while the tests are executing, be sure that the comma.nd prompt is on the screen. It is displayed after exe-cution of either the CO or SP command verbs. When the task terminates, the following prompt appears:

DEVICE DIAGNOSTIC XXXX TERMINATED WITH X ERRORS, X PASSES

15. If you want to ensure the task is operating as desired, execute the Show Progress (SP) command verb.

- A chart appears, showing which tests are operating and the number of errors found.

The chart is a dynamic picture that changes as the tests are executed. Paragraph 3.5.5 shows an example of a typical progress chart.

For the nonextended tests, the SP chart displays a total of four tests as they begin operation. After that, the chart goes blank, indicating that the nonextended tests have completed executing. When that happens, press the Command key. The command verb menu appears with the prompt:

ENTER COMMAND VERB?

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16. During the execution of the disk tests, all diagnostic error and progress messages from the diagnostic task are stored by the driver in the diagnostic history file. To view the his-tory file, enter the Show Diagnostic File (SF) verb.

- The SF command verb message and prompt appear:

YOU HAVE CHOSEN TO DISPLAY A DIAGNOSTIC FILE. ENTER THE NAME OF THE FILE YOU WISH TO SHOW.

VALID FILES ERRORS HISTORY LOG1 LOG2 SLARPT

ARE:

- ONLINE DIAGNOSTIC ERROR FILE - ONLINE DIAGNOSTIC HISTORY FILE - SYSTEM LOG FILE 1

- SYSTEM LOG FILE 2

- SYSTEM LOG ANALYSIS REPORT FILE

WHILE IN SF MODE, ALL KEYS RESPOND THE SAME AS A SCI SHOW FILE.

ENTER FILE NAME? HISTORY

17. Accept the default for the SF command verb prompt. The diagnostic history file is dis-played. You can find an example of a history file from a disk diagnostic session in para-graph 3.5.2.1.

The error messages are extracted from the history file and stored in the diagnostic error ~

file. If you want to see only errors, you can view the error file as indicated in paragraph 3.5.2.2. When you have finished looking at the files, press the Command key to return to the command verb menu.

18. You are now ready to perform the extended read only disk tests. To do so, enter XD, the Execute Diagnostic Task command verb.

- The following message and prompt appear on the screen:

YOU HAVE CHOSEN TO EXECUTE A DIAGNOSTIC TASK.' YOU CAN SELECT ALL AVAILABLE DEVICES, ALL DEVICES OF ONE CLASS (SUCH AS ALL DISKS), OR ANY ONE SPECIFIC DEVICE. ENTER YOUR SELECTION AS FOLLOWS:

ALL - SELECTS ALL DEVICES AVAILABLE

OS - SELECTS ALL TILINE DISK DEVICES AVAILABLE MT - SELECTS ALL MAG TAPE DEVICES AVAILABLE LP - SELECTS ALL PRINTER DEVICES AVAILABLE RP - SELECTS ALL REMOTE LP810 DEVICES AVAILABLE ST - SELECTS ALL TERMINAL DEVICES AVAILABLE

REJECT -- RETURN TO COMMAND PROMPT

COMPLETE DEVICE NAME (ST02, DS01) - SELECTS THAT DEVICE ENTER DEVICE NAME? ALL

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19. Enter the device name OS02.

-+ A message appears stating that device DS02 has been selected. Device 0802 is being readied for testing.

-+ The following message is displayed asking you if you want the nonextended or extended disk tests.

DO YOU WANT TO EXECUTE THE EXTENDED DISK TESTS (YES, NO)? YES

20. The target disk is still in the ON state, so you can execute either the nonextended disk tests or the extended read only disk tests. You now want to execute the extended read only disk tests, so accept the default value YES.

-+ The following screen is displayed asking you if you want to operate your session with all of the default options.

THE DEFAULT OPTIONS ARE:

PRIORITY LEVEL

=

TESTS SELECTED (1-5)

=

TERMINATION MODE

=

TO SELECT THESE DEFAULT OPTIONS, ENTER YES.

TO SELECT OTHER OPTIONS, ENTER NO.

TO R~TURN TO THE COMMAND PROMPT, ENTER 'R' FOR REJECT.

USE DEFAULT OPTIONS (YES, NO)? YES

21. Again, you will use the same values listed as the default options. However, to view the available options for the extended read only disk tests, enter NO.

-+ The following screen display appears:

CHOOSE A NEW PRIORITY FOR THIS TASK. THE DIAGNOSTIC WILL MAKE THIS PRIORITY CHANGE WHEN THE TASK IS GIVEN CPU TIME SLICES.

ENTER PRIORITY LEVEL (1, 2, 3)? 3

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22. Accept the default unless you want to assign a priority level higher than 3.

- The next display appears as follows:

THE FOLLOWING READ TESTS ARE PERFORMED BY THE EXTENDED DISK TASK.