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C2488A
Technical reference manual
HP C2488A Technical Reference Manual
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Contents
Table of Contents
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Table of Contents
Table of Contents
1 Product Specifications
Product Description
Key Features
Interface Options
Specials
Related Documentation
Disk Drive Major Components
Disk Drive Capacities
HP C2486A/88A/90A SCSI Disk Drive Capacities
Operating Specifications
HP C2486A/88A/90A Operating Specifications
DC Power Characteristics
HP C2486A/88A/90A DC Power Characteristics
Environmental Requirements
HP C2486A/88A/90A Environmental Requirements
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
2-2. Ten-Unit Packaging
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
Address/Configuration Option Descriptions
Drive to Interface Connections
Interface Connectors and Cables
Connector Dimensions and Locations
SCSI Connector
DC Power Connector
Mating Connector Requirements
Recommended Mating Connectors
Cabling Requirements
Single-Ended Cable
Differential Cable
3 Product Features Introduction
Functional Description
Disk Format
Sector Format
Addressing Structure
Error Correction Code
Cyclic Redundancy Check (CRC)
Track Sparing
Look Ahead Reads
Head Alignments
Head Alignment States
Head Alignment Modes
Typical Head Alignment Times
Command Queuing
Error Recovery
Synchronized Spindle Operation
Assembly Descriptions
Head/Disk Assembly
Disks
Heads
Actuator and Latch Assembly
Head Interface Electronics
Atmospheric Controls
Vibration Isolators
Spindle Assembly
Block Diagram
SCSI Interface
RAM Buffer
Disk Controller
Data Encoder/Decoder
Microcontroller
Servo Processor
Data Head Interface
Actuator Driver
Servo Timing
Spindle Motor Driver
Power Distribution
Disk Drive Addressing Structure
C2486A/88A/90A Cylinder Allocation
Formatted Physical Sector Allocation
4 SCSI Interface Introduction
Supported Functions
HP C2486A/88A/90A Supported SCSI Commands
Status Byte
SCSI Message Support
Target Error Conditions
Message out Phase Parity Error
Command or Data out Phase Parity Error
Lllegal Messages
Reselection Timeout
Command Descriptions A-I
Command Details
Control Byte
Change Definition
Format Unit
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
Command Descriptions
Access Log
Change SCSI ID
Change Wide SCSI ID
Execute Data
Interface Control B-I0
Manage Primary B-Ll
Media Test
Read Full
Read Headers
Reformat Track
Write Full
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Product Description
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Address and Configuration Pin-Set Set-Ups
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HP C2486Aj88Aj90A
3.5-inch SCSI-2 Disk Drives
Technical Reference Manual
Fli;-
HEWLETT
~~
PACKARD
HP Part No. xxxx-xxxx
Printed in U.S.A.
September 1992
Edition 1
DRAFT 1/18/93 09:58
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This manual is also suitable for:
C2486a
C2490a
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