Contents

 

6.3.1

Power save mode of the interface

6-11

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-E262

Page 18
Image 18
Fujitsu MHY2250BH, MHY2160BH, MHY2200BH, MHY2100BH, MHY2120BH, MHY2080BH, MHY2060BH, MHY2040BH manual Maintenance and Diagnosis