HP C2246 Product manual

Printed on
Recycled Paper
HP C2244/45/46/47
3.5-i.nch SCSl-2 Disk Drive
Technical Reference Manual
Ff};. HEWLETT
~~PACKARD
HP Part No. 5960-8346
Printed in U.S.A. September 1992
Edition 3

@ Copyright 1991, 1992 by Hewlett-Packard Company.

Printing History
This manual will be revised without notice in order to reflect the latest version of the product
it describes. New editions are complete revisions of the manual. The dates on the title page
change only when a new edition is published.
Many product updates do not require manual changes and, conversely, manual corrections
may be done without accompanying product changes.
Edition 1
.................................................................. December 1991
Edition 2
....................................................................... April 1992
Edition 3
................................................................. September 1992
iii

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Contents
1.
Product
Specifications
Product
Description . .
Key
Features
. .
Interface
Options
. . .
Specials . . . . . .
Related
Documentation
Disk Drive
Capacities
.
Operating
Specifications
DC
Power
Characteristics
Environmental
RequiTements
2.
Product
Installation
Introduction
. . . . . . . . . . .
Handling
Guidelines . . . . . . . . .
Protection
From
Mechanical Shock
Protection
from
Electrostatic
Discharge
(ESD)
Unpacking
the
Disk
Drive
. . . . . .
Inspecting
the
Shipping
Container
Inspecting
the
Disk Drive
Recording
the
Serial
Number
.
Disk Drive
Returns
. . . . . .
Return
Shipment
Addresses
Vendor
Purchases
. . . . .
Hewlett-Packard
Direct
Purchases
.
Re-Packing
For
Shipment
Mounting
Information
. . . . . . . .
Safety
/Regulatory
Compliance . . .
Chassis Dimensions
and
Mounting
Screw Locations
Physical
Mounting
....
Airflow
Requirements
. . . . . . . . .
Front
Panel
LED
Indicator
. . . . . . . . .
Address
and
Configuration
Pin-Set
Set-ups .
Drive To Interface Connections . . . .
Interface
Connectors
and
Cables
Connector
Dimensions
and
Locations
SCSI
Connector
. . . . . . . . .
DC
Power
Connector
.....
Mating
Connector
Requirements
Cabling
Requirements
Single-ended
Cable
Differential
Cable
.
1-1
1-1
1-2
1-2
1-2
1-4
1-5
1-8
1-9
2-1
2-1
2-1
2-1
2-2
2-2
2-2
2-2
2-2
2-2
2-2
2-2
2-3
2-5
2-5
2-5
2-5
2-5
2-6
2-6
2-8
2-9
2-9
2-9
2-9
2-9
2-10
2-10
2-10
Contents-1

3. Product Features
Introduction
3-1
\J
Functional Description .
3-1
Disk Format
3-1
Sector Format
3-1
Addressing Structure
3-1
Error Correction Code .
3-1
Cyclic Redundancy Check (CRC)
3-2
Track Sparing
3-2
Look Ahead Reads
3-2
Head Alignments
3-3
Head Alignment States
3-3
Head Alignment Modes 3-3
Typical Head Alignment Times . .
3-4
Command Queuing
3-4
Error Recovery
3-6
Synchronized Spindle Operation
3-6
Assembly Descriptions .
3-6
Head/Disk Assembly
3-6
Disks
3-6
Heads
3-7
Actuator and Latch Assembly
3-7
Head Interface Electronics
3-7
Atmospheric Controls
3-7
Vibration Isolators
3-7
Spindle Assembly 3-7
Block Diagram 3-8
SCSI Interface .
3-8
RAM Buffer
3-8
Disk Controller 3-8
Data Encoder/Decoder
3-8
Mi crocontroller
3-8
Servo Processor .
3-9
Data Head Interface .
3-9
Actuator Driver
3-9
Servo Timing .
3-9
Spindle Motor Driver
3-9
Power Distribution
3-9
4.
SCSI Interface
Introduction
4-1
Supported Functions 4-1
Status Byte
4-6
SCSI Message Support . 4-7
Target Error Conditions
4-8
Message Out Phase Parity Error 4-8
Command or Data Out Phase Parity Error . 4-8
Illegal Messages .
4-8
Reselection Timeout .
4-9
Contents .. 2

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A.
SCSI Command Descriptions
Command Descriptions
Command Details . .
Control Byte . . . .
Change Definition . . .
Format Unit . . .
Inquiry
.....
Mode Select, Mode Sense
Read
...
.
Read Buffer
..
.
Read Capacity . . .
Read Defect
Data
.
Read Long
....
Reassign Blocks . . . •
Receive Diagnostic Results .
Release
Request Sense
Reserve
..
Rezero Unit .
Seek
.....
Send Diagnostic
Start/Stop
Unit
Synchronize Cache
Test Unit Ready
Verify
.....
.
Write
.....
.
Write And Verify .
Write Buffer
Write Long
..
Write Same
B. Vendor Unique Command Descriptions
Command Descriptions
Access Log
.....
Change SCSI ID
Change Wide SCSI ID . .
Execute
Data
. .
Interface Control
Manage Primary
Media Test
.•.
Read Full
...
Read Headers
Reformat Track .
Write Full
...
A-1
A-1
A-2
A-6
A-7
A-11
A-15
A-31
A-32
A-33
A-34
A-36
A-37
A-39
A-41
A-42
A-48
A-49
A-50
A-51
A-53
A-54
A-55
A-56
A-57
A-59
A-60
A-62
A-63
B-1
B-2
B-7
B-8
B-9
B-10
B-11
B-16
B-18
B-20
B-21
B-22
Contents-3

C. Vendor Unique Status Codes
D. Reference
E. Narrow, Single--Ended Drive Configurations
Terminator Power Source Options . . . . .
F. Narrow, Differential Drive Configurations
G. Wide, Differential Drive Configurations
Index
Contents-4
E-4

Figures
1-1. Disk Drive Major Components
2-1. Single-Unit Packaging . . . .
2-2. Ten-Unit Packaging . . . . .
3-1. Disk Drive Addressing Structure
3-2. Formatted Physical Sector Allocation
....
3-3. Disk Drive Block Diagram . . . . . . . . . . . . .
E-1. Narrow, Single-Ended: Disk Drive Dimensions and Mounting Locations
E-2. Narrow, Single-Ended: Interface, Address and Option Connectors .
E-3. Narrow, Single-Ended: Connector Dimensions . . . . . . . . . . .
E-4. Narrow, Single-Ended: Operating Temperatures . . . . . . . . . .
F-1. Narrow, Differential: Disk Drive Dimensions and Mounting Locations
F-2. Narrow, Differential: Interface, Address and Option Connectors
..
F-3. Narrow, Differential: Connector Dimensions .
F-4. Narrow, Differential: Operating Temperatures . . . . .
...
G-1. Wide, Differential: Disk Drive Dimensions, . . . . . . . . .
G-2. Wide, Differential: Interface, Address and Option Connectors
G-3. Wide, Differential: Connector Dimensions .
G-4. Wide, Differential: Operating Temperatures . . . . . . . .
1-3
2-3
2-4
3-10
3-13
3-14
E-1
E-2
E-5
E-6
F-1
F-2
F-4
F-5
G-1
G-2
G-4
G-5
Contents·5

Tables
1-1. HP C2244/45/46/47 SCSI Disk Drive Capacities
1-2. HP C2244/45/46/47 Operating Specifications
...
1-3. HP C2244/45/46/47 DC Power Characteristics .
1-4. HP C2244/45/46/47 Environmental Requirements
....
2-1. Address/Configuration Pin-Set Information Locations
2-2. Address/Configuration Option Descriptions
2-3. Recommended Mating Connectors
...... .
3-1. C2244/45/46/47 Cylinder Allocation
..... .
4-1. HP C2244/45/46/47 Supported SCSI Commands .
A-1. Supported SCSI-2 Commands . . . .
B-1. Vendor Unique Commands . . . . . . .
C-1. Vendor Unique DERROR Status Codes
D-1. Reference Appendix Contents . . . .
E-1. Narrow, Single-Ended: Address and Option Connector Configurations .
E-2. Narrow, Single-Ended: On-Board Terminator Power (TermPwr) Sources .
E-3. Narrow, Single-Ended: SCSI Connector Pin Assignments . . ...
F-1. Narrow, Differential: Address and Option Connector Configurations . .
F-2. Narrow, Differential: SCSI Connector Pin Assignments
.....
G-1. Wide, Differential: Address and Option Connector Configurations .
G-2. Wide, Differential: SCSI Connector Pin Assignments . . . . . . .
1-4
1-5
1-8
1-9
2-6
2-7
2-9
3-11
4-4
A-3
B-1
C-1
D-1
E-3
E-4
E-5
F-3
F-4
G-3
G-4
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