Fujitsu GL-1, AB-1, IN-1, Acronyms and Abbreviations, CHAPTER 7 Maintenance and Diagnosis

Contents

6.4	Read-ahead Cache ..........................................................................................		6-13
	6.4.1	Data buffer structure ..........................................................................	6-13
	6.4.2	Caching operation ..............................................................................	6-14
	6.4.3 Using the read segment buffer ...........................................................		6-16
6.5	Write Cache....................................................................................................		6-20
	6.5.1	Cache operation .................................................................................	6-20
CHAPTER 7 Maintenance and Diagnosis .....................................................			7-1
7.1	Maintenance .....................................................................................................		7-2
	7.1.1	Rules for maintenance..........................................................................	7-2
	7.1.2	Maintenance requirements ...................................................................	7-3
	7.1.3	Maintenance levels...............................................................................	7-5
	7.1.4 Disk drive revision number..................................................................		7-6
	7.1.5 Tools and test equipment .....................................................................		7-8
	7.1.6	Self-diagnostics....................................................................................	7-8
	7.1.7	Test.......................................................................................................	7-8
7.2	Operation Confirmation .................................................................................		7-11
	7.2.1	Operation test .....................................................................................	7-11
	7.2.2	Diagnostic test....................................................................................	7-11
7.3	Troubleshooting Procedure ............................................................................		7-12
	7.3.1	Troubleshooting procedure ................................................................	7-12
	7.3.2 Troubleshooting disk drive replaced in field .....................................		7-12
	7.3.3	Troubleshooting at factory.................................................................	7-14
7.4	Disk Drive Removal Procedure......................................................................		7-15
7.5	Spare Disk Drive ............................................................................................		7-15
Glossary ...........................................................................................................			GL-1
Acronyms and Abbreviations .........................................................................			AB-1
Index .................................................................................................................			IN-1

xiv C141-E280