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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1
Product Specifications
Product Description
The HP C2244/45/46/47 single-ended and differential disk drives are reliable, low cost,
high capacity, high performance, random access mass storage devices. Each product utilizes
sputtered thin-film 3.5-inch (95 mm) disks as storage media. The disk drive electrical interface
is compatible with the new industry standard Small Computer System Interface (SCSI-2).
Figure
1-1 shows the major components of the disk drive.
These drives incorporate an advanced Digital Signal Processor (DSP) hybrid servo design
that
provides the flexibility and performance of a dedicated servo system and the dynamic head
alignment of an embedded servo system. High capacity and fast average transfer rates are
achieved with Multiple Zone Recording.
The product specifications are listed in the following tables:
Capacities
....................................................................... Table 1-1
Operating Specifications ......................................................... Table 1-2
DC Power Characteristics
........................................................ Table 1-3
Environmental Requirements .................................................... Table 1-4
Key Features
• High reliability (300,000 hours MTBF).
• Synchronous data transfer rate of up to 20 megabytes per second.
• Digital Signal Processor (DSP) hybrid servo sytem.
• High performance HP-designed balanced actuator.
• Industry
standard 3.5-inch form factor and voltage requirements.
• Fast and Wide Embedded
SCSI#2 controller.
• Powerful HP-designed Reed-Solomon ECC.
Product Specifications 1·1

Interface Options
The following interface options a.re available:
Specials
Interface Option
001
002
012
Description
SCSI-2 Fast, Na.ITow, Single-Ended
SCSI-2 Fast, Narrow, Differential
SCSI-2 Fast, Wide, Differential
Reference
Appendix
E
F
G
For customer needs that differ from the products described in this manual, Hewlett-Packard
can provide specially modified products. These modifications are ordered, defined, engineered,
and manufactured under "special" contract negotiations.
Related Documentation
The following documentation provides information related to the operation of the HP
C2244/45/46/47 disk drives:
• Small Computer Systems Interface: ANSI XT39.2/86-109 (Rev 10h), XT39/89-042
• Common Command Set (CCS}
of the Small Computer System Interface {SCSI): ANSI
XT39.2/85-52 {Rev 4B)
1-2 Product Specifications
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wztm101
Figure 1·1. Disk Drive Major Components
Product Specifications J
.. 3

Disk Drive Capacities
Table 1·1.
HP
C2244/45/46/47 SCSI Disk Drive Capacities
These
numbers
a.re
for
comparison
only.
Capacities
are
calculated
using
a
512-byte
sector.
When
other
sector
sizes
are
used,
formatted
capacities
will
change.
Unformatted
capacities
are
given
in
parenthesis
(
).
Zone
0
Zone
1
Zone
2
Zone
3
Zone
4
Zone
5
Zone
6
Zone
7
(Outer)
(Inner)
Data
Tracks
per
Surface:
533 192
136 144 138
318
268
252
Data
Sectors
per
Track:
96
92
88
84
80
72
64
56
Data
Bytes
per
Track:
49,152 47,104 45,056 43,008 40,960 36,864 32,768 28,672
(58,899) (56,338) (53,968) {51,440) (49,034) (44,079} (39,351) (34,391)
Data
Sectors
per
Cylinder:
C2244
672
644 616 588 560 504 448 392
C2245 864 828 792 756 720 648 576 504
02246
1,056 1,012 968 924 880 792
704
816
C2247 1,248 1,196 1,144 1,092 1,040 936 832 728
Data
Bytes
per
Cylinder:
C2244 344,064 329,728 315,392 301,056 286,720 258,048 229,376 200,704
(412,293) (394,36p) (377,776) {360,080) (343,238) (308,553) (275,457} {240,737)
C2245 442,368 423,936 405,504 387,072 368,640 331,776 294,912 258,048
(530,091) (507,042) (485,712) (462,960) (441,306) (396,711) (354,159) (309,519)
02246
540,672 518,144 495,616 473,088 450,560 405,504 360,448 315,392
(647,889) (619,718) (593,648) (565,840) (539,374) (484,869) (432,861) (378,301)
02247
638,976 612,352 5851728 559,104 532i480 479,232 425,984 372,736
(765,687) (732,394) (701,584) (668,'720) (637,442) (573,027) (511,563) (447,083)
C2244
C2245
C2246
C2247
Data
Surfaces
per
Drive:
7 9
11
13
Data
Bytes
per
Sector:
512 (610) 512 (610) 512 (610) 512 (610)
Data
Sectors
per
Surface:
1581096 158,096 158,096 158,096
Data
Bytes
per
Surface:
80,945,152 80,945,152 80,945,152 80,945,152
Data
Cylinders
per
Drive:
1 1,981 1,981 1,981 1,981
Data
Sectors
per
Drive:
1,106,288 1,422,480 1,738,672 2,054,864
Data
Bytes
per
Drive:
566,419,456 728,309,760 890,:ioo,o64 1,052,090,368
(678,438,799) (872,345,769) (
1,066,252,
739) (1,260,159,709)
Notes:
1.
There
are
2051
total
cylinders
per
drive,
allocated
as
follows: 1981
data
cylinders, 69
spare
cylinders,
and
1
cylinder
reserved
for
logs
and
maintenance
information.
Partial
cylinders
have
been
rounded
to
the
next
whole
number.
Refer
to
Chapter
3
1
Table
3-1 for a
complete
cylinder
allocation
list.
1-4 Product Specifications

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Operating Specifications
Table 1-2. HP C2244/45/46/47 Operating Specifications
Note: The HP C2244/45/46/46 disk drives must be operated within the Disk Drive Environmental
Requirements specified in Table 1-4
in order for them to function properly.
Interface
............................................................. Industry Standard SCSI-2
Controller:
Overhead
time ........................................................... < 500 microseconds
Buffer size
............................................................. ; ........... 256 kbytes
Buffer
type ...................................................................... Dual-ported
Sector size .. . .. .. .. .. .. . .. . .. . . . . . . . ............................. 180 - 7 44 Data Field Bytes
Interleave
................................................................................. 1:1
Seek Times (includes settling time)
Track to Track Seek
.......................................................... 2.5 milliseconds
Head Switch
Time ............................................................ < 1 millisecond
Average
Random Seek
Reads
.................................................................... 10.2 milliseconds
Writes
.................................................................... 11.2 milliseconds
Maximum Seek
............................................................... 22 milliseconds
Notes:
Seek
time is defined as the time from when the actuator begins to move until the head has
settled over
the target track. It does not include any controller overhead time or any initiator
overhead time. The values above are derived from a representative sample of disk drives
measured under
normal temperature and voltage conditions.
Track
to track seek time is the mean value of all seek times measured when performing all
possible single track seeks.
Average
random seek time is the time to do all possible seeks divided by the number of seeks
possible.
Maximum seek time is
the time it takes to seek 2051 physical cylinders.
Spin-up
Time
From Power-On to Ready for Access
Typical: . . . .. . . . . . . . . . .. .. .. . . . . .
.............................................. 14 seconds
From Power-On to SCSI Bus Selection
Typical:
....................................... , ................................. 3 seconds
Maximum:
....................................................................... 5 seconds
Disk
Rotating Speed ........................................................... 5400 rpm ±0.5%
Rotational Latency (Average time) ..................................... 5.56 milliseconds ±0.5%
futernal Data Transfer Rates (Controller/Disk) .
Burst Rates (for single sector transfers):
Inner Zone
to Outer Zone ................. 3.1 to 5.3 Mbytes (24.8 to 42.4 Mbits) per second
Sustained Rates: (for continuous transfers; excludes controller overhead)
Inner Zone
to Outer Zone ................. 2.1 to 3.7 Mbytes (17.1 to 29.5 Mbits) per second
Product Specifications 1-5

Table 1-2. HP C2244/45/46/47 OperatinQ Specifications (continued)
External Data Transfer Rate (Host/Controller)
Narrow Single-Ended/Differential _
Asynchronous
.................. , .................................... 2.5 Mbytes per second
Synchronous
................................................. up to 10.0 Mbytes per second
Wide Differential
Asynchronous
....................................................... 5.0 Mbytes per second
Synchronous
................................................. up to 20.0 Mbytes per second
Recoverable
Data Error Rate
Less than ten (10) errors in 10
13 bits transferred when
the disk drive is operated within the
specified environmental limits.
Note: A recoverable
data error occurs when a read or write operation successfully completes
with
the execution of a recovery algorithm. The recovery action is reported to the host with a
Sense Key
of 1. (Refer to the Request Sense command in Appendix A.) Mode pages must be in
the factory default states.
Unrecoverable Data Error Rate
Less
than ten (10) errors in 10
15
bits transferred when the disk drive is operated within the
specified environmental limits.
Note: An un-recoverable
data error occurs when a read or write operation does not sucessfully
complete with the execution of a recovery algorithm.
The unsuccessful operation is reported to
the host with a Sense Key of 3. (Refer to the Request Sense command in Appendix A.) Mode
pages must be in the factory default states.
Seek Error Rate
Less than ten (10) seek errors in 10
7 seeks when the drive is operated within the specified
environmental limits.
Note: A seek error occurs when the drive does not successfully locate the desired cylinder and
head.
Recording Density
Bit Density: .......................................... 1968 bits per mm (49,987 bits per inch)
Track Density:
....................................... 91 track.s per mm (2304 tracks per inch)
Coding System
............................................ 1,7 Run Length Limited (RLL) Code
Electromagnetic Emissions
Current Electromagnetic Compatibility (EMC) regulations do not specify or require testing
at
the component (standalone) level since EMC is highly dependent upon the characteristics of the
system in which the product is installed.
Although regulatory testing
is not required, these products have been characterized as
individual components using Hewlett-Packard standardized tests.
1-6 Product Specifications

I
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Table 1-2. HP C2244/45/46/47 Operating Specifications (continued)
Acoustical Noise: Typical values measured as average sound pressure at one meter per ISO 7779;
converted to average sound power (in bels)
per ISO 7779.
Idling:
·A-Weighted Sound Pressure:
...................................................... 35 db(A)
Sound Power:
...................................................................... 4.6 bels
Seeking:
A-Weighted Sound Pressure:
..................................................... 37 db(A)
Sound Power:
...................................................................... 4.8 bels
Safety
This product will be evaluated as a component (incomplete in nature) to the following
specifications. A complete
test and evaluation program should be performed on the end use
.application.
IEC
................................................. 950, 1st Edition, Amendments 1 and 2
UL ....................................................................... 1950, 1st Edition
CSA
................................................................... C22.2 No. 950-M89
EN
............................................................................ 60950, 1988
TUV ................................................ EN 60950, 1988; DIN VDE 0805/05.90
DEMKO
.................................................... EMKO-TUE (74-SEC) 203/91
Physical Characteristics
Unit Weight
.................................................................. 1.0 kg (2.2 lbs)
Shipping Weight (Single-Unit Package)
........................................ 1.6 kg (3.5 lbs)
Shipping Weight (Ten-Unit Package)
.......................................... 11.5 kg (25 lbs)
:,_,,: Dimensions:
Length
................................................................. 146.1 mm (5.75 in.)
Width ................................................................. 101.6 mm (4.00 in.)
Height
.................................................................. 41.3 mm (1.63 in.)
(Dimensions exclude front bezel. Additional information is provided in Chapter 2.)
Product Specifications 1-7

DC Power Characteristics
All values assume input voltages are within limits specified under Input Power Requirements
in Table 1-4.
Table 1-3. HP C2244/45/46/47 DC Power Characteristics
Start-Up
Running Seeking
Typ/Max Typ/Max
Typ/Max
(Note 1)
(Note 2)
+s V de Current
Narrow, Single-Ended 0.93 A /
l.03 A 0.93 A / l.03 A 0.93 A / 1.03 A
Narrow, Differential (Idle) 1.3 A I 1.44 A
1.3 A/ 1.44 A 1.3 A I 1.44 A
Narrow, Differential (Active)Note 3 1.8
A/ l.94 A
1.8 A/ 1.94 A 1.8 A/ 1.94 A
Wide, Differential (Idle) 1.4
A/ 1.55 A 1.4 A/ 1.55 A 1.4 A/ 1.55 A
Wide, Differential (Active)Note 3 2.4 A I 2.55 A 2.4
A/ 2.55 A 2.4 A I 2.55 A
+12 Vdc (ave) Current Note 4
All 0.54 A I 0.57 A 0.82 A I 0.85 A
+12 Vdc (peak) Current Noh!$ 4, ~
All 2.45
A/ 2,50 A 1.20 A I 1.50 A
Power
Narrow, Single-Ended 34.1 wI 36.9 w 11.1 w /
12.6 w 14.4 w / 16.1 w
Narrow, Differential 35.9 w / 39.1 w 13.0 w / 14.7 w 16.3 w / 18.8 w
Wide, Differential
36.4 w / 39.6 w
13.s w / 15.3 w
1s.s w / 1s.s w
Notes:
1. Spindle up to speed and actuator is track following.
2. Assuming
random seeks with an average latency between seeks.
3. Differential tranceivers
transmitting and receiving.
4.
Typical +12 Vdc currents are for sustained drive operation at 25° ambient temperature. Maximum +12 Vdc
currents (running and seeking) are for initial drive tum-on at 0° C ambient temperature.
5. Peak values shown are for occurrences greater than 5 milliseconds duration.
I
START UP SELF TEST/
SEEKING
Typical +12V Current
1-8 Product Specifications
\
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Environmental Requirements
The environmental requirements for proper operation of the HP C2244/45/46/46 Disk Drive
are listed in Table 1-4.
Table 1·4. HP C2244/45/46/47 Environmental Requirements
Input Power
Voltages
........................................................................ +5 V, +12 V
Regulation
.............................................................................. ±5%
(±10% tolerance allowed for +12V during start-up.)
Ripple and Noise:
+5 V ......................................................................... < 100 mVp-p
+12 V ........................................................................ < 200 mVp-p
Ambient Air Temperature
Operating
....................................................... 5°C to 50°C (41°F to 122°F)
Nonoperating
................................................. -40°C to 65°C (-40°F to 149°F)
(Maximum
rate of change shall not exceed 20°C (36°F) per hour.)
Airflow Requirements
Narrow, Single-Ended Drives
....................................................... 3 to 5 cfm
Narrow, Differential Drives
......................................................... 3 to 5 cfm
L./ Wide, Differential Drives ........................................................... 4 to 6 cfm
For more information:
General installation guidelines
........................................... refer to Chapter 2
Narrow, Single-Ended Drives
........................................... refer to Appendix E
Narrow, Differential Drives
............................................. refer to Appendix F
Wide, Differential Drives
.............................................. refer to Appendix G
Relative Humidity
Operating
............................................. 8% to 80% with wet bulb limit of 28° C
Nonoperating (storage and shipping)
.................. 5% to 90% with wet bulb limit of 28°C
(Excludes all conditions which can cause condensation in or on the disk drive.)
Altitude
Operating
........................ - 305 m (- 1,000 ft) to 3,048 m (10,000 ft) above sea level.
Nonoperating
.................... - 305 m (- 11 000 ft) to 15,240 m (50,000 ft) above sea level.
Tilt
The disk drive will meet all performance specifications on any of the major mounting axes.
Refer to Chapter 2 for mounting instructions.
Product Specifications 1-9

Table 1-4. HP C2244/45/46/47 Environmental Requirements (continued)
Shock
Operating:
Applied Acceleration (halfsine)
................................ 3.0 g (peak), 11 milliseconds
The drive meets recoverable and unrecoverable data error rate specifications (refer to Table
1-2) with no recoverable or unrecoverable hardware faults. Mode pages must be in factory
default
state.
Applied Acceleration (half sine) .............................. 10.0 g (peak), 11 milliseconds
The drive meets unrecoverable data error rate specifications (refer to Table 1-2) with no
unrecoverable hardware faults. Mode pages must
be in factory default state.
Nonoperating:
Applied Acceleration
(half sine) ................................ 50 g (peak)1 11 milliseconds
The drive meets recoverable and unrecoverable data error rate specifications (refer to Table
1-2) with no recoverable or unrecoverable hardware faults and no damage to the mechanism.
Mode pages must be
in factory default state.
Notes:
A recoverable hardware fault occurs when the drive detects a hardware error, such as a seek
or track following error
1 and successfully completes the operation with the execution of a
recovery algorithm.
The recovery action is reported to the host with a Sense Key of 1. (Refer
to the Request Sense command
in Appendix A.) Mode pages must be in the factory default
states.
An un-recoverable hardware fault occurs when the drive detects a hardware error, such as a
seek or track following error, and does not successfully complete the operation with the
execution of a recovery algorithm. The unsuccessful operation is reported to the host with a
Sense Key of 4. (Refer to the Request Sense command in Appendix A.) Mode pages must be
in the factory default sta.tes.
Swept Sine Vibration
Operating:
Applied Acceleration
............................................ 0.25 g (peak), 5 to 500 Hz
The drive meets recoverable and unrecoverable data error rate specifications (refer to Table
1-2) with no recoverable or unrecoverable hardware faults. Mode pages must
be in factory
default state.
Applied Acceleration
.............................................. 0.5 g (peak), 5 to 500 Hz
The drive meets unrecoverable data error rate specifications (refer to Table 1-2) with no
unrecoverable hardware faults. Mode pages must be
in factory default state.
Nonoperating:
Applied Acceleration
.............................................. 2.0 g (peak), 5 to 500 Hz
The drive meets recoverable and unrecoverable data error rate specifications (refer to Table
1-2) with no recoverable or unrecoverable hardware faults
and no damage to the mechanism.
Mode pages must be in factory default state.
1·10 Product Specifications
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