Fujitsu M2488 manual Options Byte Field Descriptions, Types of Diagnostic Procedures

MAINTENANCE AND SERVICING M2488 PRODUCT GUIDE

		Table 8-18. Options Byte Field Descriptions
BINARY	HEX	DESCRIPTION
00000001	0x01	Continue on error
		If an error occurs, the next test in the test list is executed.
00000010	0x02	Reserved
		Not used at this time.
00000100	0x04	Reserved
		Not used at this time.
00001000	0x08	Loop all Tests Forever
		Loop all tests in the current test list until the operator aborts test execution.
00010000	0x10	Reserved
		Not used at this time.
00100000	0x20	Suppress Errors
		Do not display errors when they occur.
01000000	0x40	Suppress Status
		Do not display status as tests are executing.
10000000	0x80	Reserved
		Not used at this time.

8-4.4 Types of Diagnostic Procedures

The Diagnostic Microcode architecture is a list based architecture. Therefore, the basic sequence of operations for any diagnostic procedure is as follows:

1. Create or modify a test list - (optional, FACTORY MODE only)

Building a list of diagnostic tests to execute is an optional task because every mode of diagnostic operation includes a default list of tests to be executed. Therefore this step is not required.

2. Execute the test list

Through the use of the “RUN” command, individual nodes in a test list are sequentially executed until the end of the list is encountered. Options are available to allow the ability to loop individual nodes of a test list or loop the entire list.

3. Examine the results

At the end of each test list execution, the number of times the test list was executed is displayed along with the number of errors encountered. Errors are displayed at the time they occur, and the first 16 errors that occur are captured in an error log. Based on the results obtained from executing a test list, the test list may be modified and executed again to obtain additional information.

Although these steps apply mainly to the Off-Line diagnostic mode, the same sequence of operations is performed for every mode.

8-4.4.1 Tasked Go/No-Go Diagnostics

Diagnostics executed in this mode are done automatically at M2488 power on. The nodes in the default test list are executed in sequence until the end of the test list is encountered. If an error occurs in this mode of operation, an error message will be scrolled on the operator control panel and the SCSI interface to the M2488 Tape Drive will not be enabled. However, controller firmware will attempt to continue in order to provide the ability to invoke the Off-Line diagnostics to allow further trouble-shooting of the problem.

8-24 CG00000-011503 REV. A April 1997