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Fujitsu MAS3735NC Manual/User Guide - Page 81

Write protect setting NP model, Setting of the SCSI interface operation mode NP model

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(3) Write protect When the write protect function is enabled on NP model, writing to the disk medium is disabled. Table 5.4 Write protect setting (NP model) Write protect Write operation is enabled. Write operation is disable. *1. Set at factory shipment. CN2 9-10 Open (*1) Short For NC model, the function of the write protect setting is not supported. (4) Setting of the SCSI interface operation mode By establishing a short-circuit between CN2-15 amd CN2-16 on NP model, the SCSI interface operation mode is forcibly set to the single-ended mode. When this setup terminal is open, the IDD automatically identifies the DIFFSNS signal level on the SCSI bus and the IDD SCSI interface operation mode is set to the operation mode. Table 5.5 Setting of the SCSI interface operation mode (NP model) Operation mode Follows the DIFFSNS signal level on the SCSI bus Single-Ended mode *1. Set at factory shipment. CN2 15-16 Open (*1) Short For NC model, the function of the SCSI interface operation mode is not supported, so the SCSI interface operation mode follows the level of the DIFFSNS signal on the SCSI bus. (5) Setting the bus width of the SCSI interface By establishing a short-circuit between CN2-13 and CN2-14 on NP model, the bus width for the SCSI interface is forcibly set to the 8-bit bus mode. This setup terminal must be set in order to guarantee the physical level of the SCSI interface's upper bus (DB8-15, P1) inside the IDD only when the top-level bus (DB8-15, P1) for the IDD SCSI interface is not connected to the external part of the IDD. Table 5.6 Setting the bus width of the SCSI interface (NP model) Bus width 16 bit bus 8 bit bus *1. Set at factory shipment. CN2 13-14 Open (*1) Short For NC model, the function of the bus width setting for the SCSI interface is not supported. C141-E185 5-9

Section	Page
Front Cover	1
FOR SAFE OPERATION	2
REVISION RECORD	3
PREFACE	5
Important Alert Items	7
MANUAL ORGANIZATION	9
CONTENTS	11
FIGURES	14
TABLES	16
CHAPTER 1 GENERAL DESCRIPTION	17
1.1 Standard Features	18
1.2 Hardware Structure	22
1.3 System Configuration	25
CHAPTER 2 SPECIFICATIONS	27
2.1 Hardware Specifications	27
2.1.1 Model name and order number	27
2.1.2 Function specifications	28
2.1.3 Environmental specifications	30
2.1.4 Error rate	31
2.1.5 Reliability	31
2.2 SCSI Function Specifications	33
CHAPTER 3 DATA FORMAT	35
3.1 Data Space	35
3.1.1 Cylinder configuration	35
3.1.2 Alternate spare area	38
3.1.3 Track format	39
3.1.4 Sector format	41
3.1.5 Format capacity	43
3.2 Logical Data Block Addressing	43
3.3 Defect Management	45
3.3.1 Defect list	45
3.3.2 Alternate block allocation	45
CHAPTER 4 INSTALLATION REQUIREMENTS	51
4.1 Mounting Requirements	51
4.1.1 External dimensions	51
4.1.2 Mounting	54
4.1.3 Notes on mounting	54
4.2 Power Supply Requirements	58
4.3 Connection Requirements	61
4.3.1 SCA2 connector type 16-bit SCSI model (NC model)	61
4.3.2 68 pin connector type 16-bit SCSI model (NP model)	63
4.3.3 Cable connector requirements	70
4.3.4 External operator panel (on NP model drives only)	71
CHAPTER 5 INSTALLATION	73
5.1 Notes on Handling Drives	73
5.2 Connections	75
5.3 Setting Terminals	77
5.3.1 SCSI ID setting	78
5.3.2 Each mode setting	80
5.3.3 Mode settings	82
5.4 Mounting Drives	83
5.4.1 Check before mounting	83
5.4.2 Mounting procedures	83
5.5 Connecting Cables	84
5.6 Confirming Operations after Installation and Preparation for Use	85
5.6.1 Confirming initial operations	85
5.6.2 Checking SCSI connection	86
5.6.3 Formatting	89
5.6.4 Setting parameters	91
5.7 Dismounting Drives	95
5.8 Spare Disk Drive	95
CHAPTER 6 DIAGNOSTICS AND MAI NTENANCE	97
6.1 Diagnostics	97
6.1.1 Self-diagnostics	97
6.1.2 Test programs	100
6.2 Maintenance Information	101
6.2.1 Precautions	101
6.2.2 Maintenance requirements	102
6.2.3 Maintenance levels	104
6.2.4 Revision numbers	105
6.2.5 Tools and test equipment	106
6.2.6 Tests	106
6.3 Operation Check	108
6.3.1 Initial seek operation check	108
6.3.2 Operation test	108
6.3.3 Diagnostic test	108
6.4 Troubleshooting Procedures	109
6.4.1 Outline of troubleshooting procedures	109
6.4.2 Troubleshooting with disk drive replacement in the field	109
6.4.3 Troubleshooting at the repair site	111
6.4.4 Troubleshooting with parts replacement in the factory	112
6.4.5 Finding possibly faulty parts	112
CHAPTER 7 ERROR ANALYSIS	113
7.1 Error Analysis Information Collection	113
7.1.1 Sense data	113
7.1.2 Sense key,sense code,and subsense code	113
7.2 Sense Data Analysis	115
7.2.1 Error information indicated with sense data	115
7.2.2 Sense data (3-0C-03),(4-40-xx),(4-44-xx),and (4-C4-xx)	116
7.2.3 Sense data (1-1x-xx),(3-1x-xx)and (E-1D-00):Disk read error	116
7.2.4 Sense data (5-2x-xx),(5-3D-00),(5-90-00),(B-47-xx),(B-49-00),(B-4D-xx)and (B-4E-00): SCSI interface error	116
APPENDIX A SETTING TERMINALS	117
A.1 Setting Terminals (on NP model only)	118
APPENDIX B CONNECTOR SIGNAL ALLOCATION	119
B.1 SCSI Connector Signal Allocation:SCA2 type LVD 16-bit SCSI	120
B.2 SCSI Connector Signal Allocation:68 pin type LVD 16-bit SCSI	121
INDEX	123
Comment Form	127

Match case Limit results 1 per page

C141-E185

5-9

(3)

Write protect

When the write protect function is enabled on NP model, writing to the disk medium is disabled.

Table 5.4

Write protect setting (NP model)

Write protect

CN2 9-10

Write operation is enabled.

Open (*1)

Write operation is disable.

Short

*1.

Set at factory shipment.

For NC model, the function of the write protect setting is not supported.

(4)

Setting of the SCSI interface operation mode

By establishing a short-circuit between CN2-15 amd CN2-16 on NP model, the SCSI interface

operation mode is forcibly set to the single-ended mode. When this setup terminal is open, the IDD

automatically identifies the DIFFSNS signal level on the SCSI bus and the IDD SCSI interface

operation mode is set to the operation mode.

Table 5.5

Setting of the SCSI interface operation mode (NP model)

Operation mode

CN2 15-16

Follows the DIFFSNS signal level on the SCSI bus

Open (*1)

Single-Ended mode

Short

*1.

Set at factory shipment.

For NC model, the function of the SCSI interface operation mode is not supported, so the SCSI

interface operation mode follows the level of the DIFFSNS signal on the SCSI bus.

(5)

Setting the bus width of the SCSI interface

By establishing a short-circuit between CN2-13 and CN2-14 on NP model, the bus width for the

SCSI interface is forcibly set to the 8-bit bus mode. This setup terminal must be set in order to

guarantee the physical level of the SCSI interface’s upper bus (DB8-15, P1) inside the IDD only

when the top-level bus (DB8-15, P1) for the IDD SCSI interface is not connected to the external

part of the IDD.

Table 5.6

Setting the bus width of the SCSI interface

(NP model)

Bus width

CN2 13-14

16 bit bus

Open (*1)

8 bit bus

Short

*1.

Set at factory shipment.

For NC model, the function of the bus width setting for the SCSI interface is not supported.