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Fujitsu MAP3367NC Manual/User Guide - Page 62

in SCSI Physical Interface Specifications., Delay time] = [SCSI ID]

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(4) Sequential starting of spindle motors After power is turned on to the IDD, a large amount of current flows in the +12 VDC line when the spindle motor rotation starts. Therefore, if more than one IDD is used, the spindle motors should be started sequentially using one of the following procedures to prevent overload of the power supply unit. For the NP model drives, the spindle motors should be started by the following procedures. Regarding how to set a spindle motor start control mode, see Subsection 5.3.2. a) Issue START/STOP commands at more than 12-second intervals to start the spindle motors. For details of this command specification, refer to SCSI Logical Interface Specifications. b) Turn on the +12 VDC power in the power supply unit at more than 12-second intervals to start the spindle motors sequentially. For the NC model drives, the spindle motors should be started after a delay of the following time. [Delay time] = [SCSI ID] × 12 seconds SCSI ID 0 1 2... 15 Delay time of spindle motor starting 0 12 s 24 ...s 180 s (5) Power supply to SCSI terminating resistor If power for the terminating resistor is supplied from the IDD to other SCSI devices through the SCSI bus, the current-carrying capacity of the +5 VDC power supply line to the IDD must be designed with considering of an increase of up to 200 mA. A method of power supply to the terminating resistor is selected with a setting terminal on the IDD (MP model only). See Subsection 5.3.2 for this selection. For the electrical condition of supplying power to the terminating resistor, refer to Subsection 1.4.2 in SCSI Physical Interface Specifications. (6) Noise filter To eliminate AC line noise, a noise filter should be installed at the AC input terminal on the IDD power supply unit. The specification of this noise filter is as follows: • Attenuation: 40 dB or more at 10 MHz • Circuit construction: T-configuration as shown in Figure 4.12 is recommended. 4-10 C141-E166

Section	Page
Front Cover	1
FOR SAFE OPERATION	2
REVISION RECORD	3
PREFACE	5
Important Alert Items	7
CONTENTS	11
FIGURES	15
TABLES	17
CHAPTER 1 GENERAL DESCRIPTION	19
1.1 Standard Features	20
1.2 Hardware Structure	24
1.3 System Configuration	27
CHAPTER 2 SPECIFICATIONS	29
2.1 Hardware Specifications	29
2.1.1 Model name and order number	29
2.1.2 Function specifications	30
2.1.3 Environmental specifications	32
2.1.4 Error rate	33
2.1.5 Reliability	33
2.2 SCSI Function Specifications	35
CHAPTER 3 DATA FORMAT	37
3.1 Data Space	37
3.1.1 Cylinder configuration	37
3.1.2 Alternate spare area	40
3.1.3 Track format	41
3.1.4 Sector format	43
3.1.5 Format capacity	45
3.2 Logical Data Block Addressing	45
3.3 Defect Management	47
3.3.1 Defect list	47
3.3.2 Alternate block allocation	47
CHAPTER 4 INSTALLATION REQUIREMENTS	53
4.1 Mounting Requirements	53
4.1.1 External dimensions	53
4.1.2 Mounting	56
4.1.3 Notes on mounting	56
4.2 Power Supply Requirements	60
4.3 Connection Requirements	63
4.3.1 68 pin connector 16-bit SCSI model (NP model)	63
4.3.2 SCA2 type SCSI model (NC model)	71
4.3.3 Cable connector requirements	72
4.3.4 External operator panel (on NP model drives only)	74
CHAPTER 5 INSTALLATION	75
5.1 Notes on Handling Drives	75
5.2 Connections	77
5.3 Setting Terminals	79
5.3.1 SCSI ID setting (NP model only)	80
5.3.2 Each mode setting (NP model only)	81
5.3.3 Mode settings	83
5.4 Mounting D ives	84
5.4.1 Check before mounting	84
5.4.2 Mounting p ocedures	84
5.5 Connecting Cables	85
5.6 Confirming Operations after Installation and Preparation for use	86
5.6.1 Confirming initial operations	86
5.6.2 Checking SCSI connection	87
5.6.3 Formatting	90
5.6.4 Setting parameters	92
5.7 Dismounting Drives	96
5.8 Spare Disk Drive	96
CHAPTER 6 DIAGNOSTICS AND MAI TENANCE	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
6.4.3Troubleshooting 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:68 pin type LVD 16-bit SCSI	120
B.2 SCSI Connector Signal Allocation:SCA2 type LVD 16-bit SCSI	121
INDEX	123
Addresses	127
Reader Comment Form	129

Match case Limit results 1 per page

4-10

C141-E166

(4)

Sequential starting of spindle motors

After power is turned on to the IDD, a large amount of current flows in the +12 VDC line when the

spindle motor rotation starts.

Therefore, if more than one IDD is used, the spindle motors should

be started sequentially using one of the following procedures to prevent overload of the power

supply unit.

For the NP model drives, the spindle motors should be started by the following procedures.

Regarding how to set a spindle motor start control mode, see Subsection 5.3.2.

Issue START/STOP commands at more than 12-second intervals to start the spindle motors.

For details of this command specification, refer to SCSI Logical Interface Specifications.

Turn on the +12 VDC power in the power supply unit at more than 12-second intervals to start

the spindle motors sequentially.

For the NC model drives, the spindle motors should be started after a delay of the following time.

[Delay time] = [SCSI ID]

12 seconds

SCSI ID

Delay time of spindle motor starting

12 s

24 s

180 s

(5)

Power supply to SCSI terminating resistor

If power for the terminating resistor is supplied from the IDD to other SCSI devices through the

SCSI bus, the current-carrying capacity of the +5 VDC power supply line to the IDD must be

designed with considering of an increase of up to 200 mA.

A method of power supply to the terminating resistor is selected with a setting terminal on the IDD

(MP model only).

See Subsection 5.3.2 for this selection.

For the electrical condition of supplying power to the terminating resistor, refer to Subsection 1.4.2

in SCSI Physical Interface Specifications.

(6)

Noise filter

To eliminate AC line noise, a noise filter should be installed at the AC input terminal on the IDD

power supply unit.

The specification of this noise filter is as follows:

•

Attenuation: 40 dB or more at 10 MHz

•

Circuit construction:

T-configuration as shown in Figure 4.12 is recommended.