Fujitsu MHY2080BS, MHY2160BS, MHY2200BS, MHY2120BS, MHY2040BS, MHY2060BS 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

xiv C141-E269