HP C2488A, C2486A, C2490A Technical Reference Manual
HP
C2486Aj88Aj90A
3.5-inch
Technical
SCSI-2 Disk Drives
Reference
Manual
Fli;-
~~
HP
Printed in U.S.A. September 1992
DRAFT 1/18/93
HEWLETT
PACKARD
Part No. xxxx-xxxx
Edition 1
09:58
Printing
History
This manual will be revised without notice in order
it
describes. New editions are complete revisions of
change only when a new edition is published.
Many
product
may be done
Edition 1
updates
without
.................................................................
do
not
require manual changes and, conversely, manual corrections
accompanying product changes.
to
the
reflect
manual.
the
latest
The
version of
dates
on
the
product
the
title
page
September 1992
DRAFT
1718/93 09:58
iii
Contents
1.
Product
Product
Key Features . .
Interface Options .
Specials
Related Documentation
Disk Drive Capacities .
Operating
DC Power Characteristics
Environmental Requirements
Specifications
Description
.....
Specifications
1-1
1-1
1-2
1-2
1-2
1-4
1-6
1-9
1-10
Product
2.
Introduction
Handling Guidelines . . . . . . . .
Protection
Protection
Unpacking
Inspecting
Inspecting
Recording
Disk Drive
Return
Re-Packing For Shipment
Mounting Information . . . . . . . .
Safety
Chassis Dimensions
Physical Mounting
Airflow Requirements . . . . . . . .
Front Panel LED Indicator . .
Address
Drive To Interface Connections . . . .
Interface Connectors
Connector Dimensions
SCSI Connector
DC
Mating
Cabling Requirements
Installation
. . . . . . . . . . .
From Mechanical Shock
from Electrostatic Discharge (ESD)
the
Disk Drive
the
Shipping Container
the
Disk Drive
the
Serial Number
Returns
Shipment Addresses
Vendor Purchases
Hewlett- Packard Direct Purchases .
/Regulatory
and
Configuration Pin-Set Set-ups
Power Connector
Connector Requirements
Single-ended Cable
Differential Cable .
. . . . .
Compliance . . .
and
......
.....
....
and
Mounting Screw Locations
Cables
and
Locations
..
. . . .
.
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
DRAFT
1/18/93
09:58
Contents-1
3.
Product Features
Introduction
Functional Description .
Disk
Format
Sector
Addressing
Error
Track Sparing
Head Alignments
Command
Synchronized
Assembly
Head/Disk
Block Diagram
SCSI Interface
RAM Buffer
Disk Controller
Data
Microcontroller
Servo Processor .
Data
Actuator
Servo
Spindle
Power Distribution
Format
Structure
Correction Code
Cyclic Redundancy Check
Look Ahead Reads
Head Alignment
Head Alignment Modes
Typical Head Alignment Times
Queuing
Error
Recovery
Descriptions .
Assembly
Disks
Heads
Actuator
Head Interface Electronics
Atmospheric Controls
Vibration Isolators
Spindle Assembly
Encoder/Decoder
Head Interface
and Latch Assembly
Driver
Timing
Motor
(CRC)
States
Spindle Operation
.
Driver
.-
3-1
3-1
3-1
3-1
3-1
3-1
3-2
3-2
3-2
3-3
3-3
3-3
3-4
3-4
3-6
3-6
3-6
3-6
3-6
3-7
3-7
3-7
3-7
3-7
3-7
3-8
3-8
3-8
3-8
3-8
3-8
3-9
3-9
3-9
3-9
3-9
3-9
4.
SCSI Interface
Introduction
Supported Functions
Status
SCSI Message Support .
Contents-2
Byte
Target
Message
Command
lllegal Messages .
Reselection
Error
Out
or
Conditions
Phase
Data
Timeout
Parity
Out
.
Error
Phase
Parity
Error
4-1
4-1
4-6
4-7
4-8
4-8
4-8
4-8
4-8
DRAFT
1/18/93 09:58
A.
SCSI
Command
Command
Command
Control
Change
Format
Byte
Descriptions
Descriptions
Details .
Definition.
Unit A-7
Inquiry
Mode Select, -Mode Sense
Read A-31
Read Buffer
Read Capacity A-33
Data
Read Defect
. A-34
Read Long A-36
Reassign Blocks .
Receive Diagnostic Results A-39
Release
Request
Sense A-42
Reserve
Rezero
Unit A-49
Seek.
Diagnostic
Send
Start/Stop
Synchronize
Unit Ready A-55
Test
Unit
Cache
Verify
Write
Write
Write
Write
Write
And Verify
Buffer
Long.
Same
A-I
A-I
A-2
A-6
A-ll
A-15
A-32
A-37
A-41
A-48
A-50
A-51
A-53
A-54
A-56
A-57
A-59
A-60
A-62
A-63
B. Vendor Unique
Command
Access
Log.
Change SCSI ID
Change
Execute
Interface
Manage
Media
Test.
Read Full
Read Headers
Reformat Track .
Write Full
DRAFT
1/18/93 09:58
Command
Descriptions
Wide SCSI ID
Data.
Control
Primary
Descriptions
B-1
B-2
B-7
B-8
B-9
B-I0
B-ll
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.
. . . .
Index
E-4
Contents-4
DRAFT
1/18/93 09:58
Figures
1-1. Disk Drive Major Components 1-3
Single-Unit Packaging . . . . 2-3
2-1.
2-2. Ten-Unit Packaging . . . . . 2-4
3-1. Disk Drive Addressing Structure
3-2. Formatted Physical Sector Allocation 3-14
3-3. Disk Drive Block Diagram . . . . . 3-15
E-1. Narrow, Single-Ended: Disk Drive Dimensions and Mounting Locations
E-2. Narrow, Single-Ended: Interface, Address and Option Connectors E-2
..
E-3. Narrow, Single-Ended: Connector Dimensions
E-4. Narrow, Single-Ended: Temperature Measuring
. . E-5
Points.
. . . . E-6
Tables
3-10
E-l
1-1. HP C2486A/88A/90A SCSI Disk Drive Capacities
1-2.
HP
C2486A/88A/90A Operating Specifications . .
1-3. HP
1-4.
2-1. Address/Configuration
2-2. Address/Configuration
2-3. Recommended Mating Connectors
3-1.
4-1. HP C2486A/88A/90A Supported SCSI Commands
A-I. Supported SCSI-2 Commands
B-1. Vendor Unique Commands
C-1. Vendor Unique
D-1. Reference Appendix Contents
E-l.
E-2. Narrow, Single-Ended: On-Board Terminator Power (TermPwr)
E-3. Narrow, Single-Ended: SCSI Connector Pin Assignments
C2486A/88A/90A DC Power Characteristics .
HP
C2486A/88A/90A Environmental Requirements
Pin-Set Information Locations
Option Descriptions
......
C2486A/88A/90A Cylinder
DERROR
Narrow, Single-Ended: Address and Option Connector Configurations
Allocation.
...
.....
Status
Codes
....
. . .
.
.
.
..
.....
Sources
1-4
1-6
1-9
1-10
2-6
2-7
2-9
3-11
4-4
A-3
B-1
C-l
D-l
E-3
E-4
.
E-5
DRAFT
1/18/93 09:58
Contents-5
Product Specifications
Product Description
The
HP
C2486A/88A/90A single-ended and differential disk drives are reliable, low cost,
high capacity, high performance, random access mass storage devices. Each
The
sputtered thin-film 3.5-inch (95 mm) disks as storage media.
is compatible with
1-1
shows
the
the
major
industry
components of
standard
Small Computer System Interface (SCSI-2). Figure
the
disk drive.
disk drive electrical interface
product
1
utilizes
These drives incorporate an advanced Digital
provides
alignment of an embedded servo system. High capacity and fast average transfer rates are
achieved with Multiple Zone Recording.
The
Capacities
Operating Specifications
DC Power Characteristics
Environmental Requirements
the
flexibility and performance of a dedicated servo system
product specifications are listed in
............................................
.........................................................
........................................................
....................................................
Signal Processor
the
following tables:
(DSP)
.-
..........................
hybrid servo design
and
the
dynamic head
Table
Table 1-2
Table 1-3
Table 1-4
Key Features
• High reliability (500,000 hours
• Synchronous
• Digital Signal Processor (DSP) hybrid servo sytem.
• High performance HP-designed balanced
•
Industry
• Fast and Wide Embedded SCSI-2 controller.
• Powerful HP-designed Reed-Solomon ECC.
data
standard
transfer
3.5-inch form factor and voltage requirements.
rate
MTBF).
of up
to
20
megabytes per second.
actuator.
that
1-1
DRAFT
1/18/93
09:58
Product Specifications 1·1
Interface Options
The
following interface options are available:
Interface
001
002
012
Option
Description
SCSI-2 Fast, Narrow, Single-Ended
SCSI-2
Fast, Narrow, Differential
SCSI-2 Fast, Wide, Differential
Reference
Appendix
E
F
'.
G
Specials
For customer needs
can provide specially modified products. These modifications are ordered, defined, engineered,
and
manufactured under "special" contract negotiations.
that
differ from
the
products described in this manual, Hewlett-Packard
Related Documentation
The
following documentation provides information related
C2486A/88A/90A disk drives:
• Small Computer Systems Interface:
II
Common Command Set (CCS)
ANSI
XT39.2/86-109 (Rev 10h), XT39/89-042
of
the Small Computer System Interface (SCSI):
XT39.2/85-52 (Rev 4B)
to
the
operation of
the
HP
ANSI
1-2 ProductSpecifications
DRAFT
1/18/93 09:58
w3101
Figure 1·1. Disk Drive Major Components
DRAFT Product Specifications
1/18/93 09:58
1·3
Disk
Drive
Capacities
Table 1·1.
HP
C2486A/88A/90A SCSI Disk Drive Capacities
These
nuniliers
are
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
(Outer)
Data
Tracks
per
Surface:
478 171 136 150 140 178
144
Data
Sectors
per
Track:
116 112 108
104
100
96
92
Data
Bytes
per
Track:
59,392
57,344
55,296 53,248
51,200 49,152
47,104
(71,572) (69,104) (66,636) (64,168)
(61,700) (59,232)
(56,764)
Data
Sectors
per
Cylinder:
C2486A 1,276 1,232 1,188 1,144 1,100
1,056 1,012
C2488A
1,624
1,568 1,512 1,456
1,400 1,344 1,288
C2490A
1,972 1,904 1,836 1,768 1,700 1,632 1,564
Data
Bytes
per
Cylinder:
C2486A 653,312 630,784 608,256 585,728 563,200
540,672
518,144
(787,292)
(760,144) (732,996)
(705,848) (678,700) (651,552)
(624,404)
C2488A
831,488
802,816 774,144 745,472
716,800
688,128
659,456
(1,002,008) (967,456) (932,904) (898,352)
(863,800)
(829,248) (794,696)
C2490A 1,009,664
974,848 940,032 905,216 870,400 835,584
800,768
(1,216,724) (1,174,768) (1,132,812) (1,090,856) (1,048,900) (1,006,944)
(964,988)
C2486A
C2488A
C2490A'
Data
Surfaces
per
Drive:
11
14 17
Data
Bytes
per
Sector:
512 (617) 512 (617)
512 (617)
Data
Sectors
per
Surface:
230,168 230,168 230,168
Data
Bytes
per
Surface:
117,846,016 117,846,016 117,846,016
Data
Cylinders
per
Drive:
1
2,467 2,467 2,467
Data
Sectors
per
Drive:
2,531,848 3,222,352
3,912,856
Data
Bytes
per
Drive:
1,296,306,176
1,649,844,224
2,003,382,272
(1,562,150,216)
(1,988,191,184) (2,414,232,152)
...
Notes:
1.
There
are
2531
total
cylinders
per
drive,
allocated
as
follows: 2467
data
cylinders, 63
spare
cylinders,
and
2
cylinders
reserved
for
logs
and
maintenance
infonnation.
Partial
cylinders
have
been
rounded
to
the
next
whole
number.
Refer
to
Chapter
3,
Table
3-1 for a complete cylinder
allocation
list.
(continued
on
next
page)
1·4
Product SpecHications
DRAFT
1/18/93 09:58
These
sizes
Data
Data
Data
Data
Data
numbers
are
used,
Tracks
Sectors
Bytes
Sectors
Bytes
Table 1-1.
are
for
comparison
formatted
per
Surface:
per
Track:
per
Track:
per
Cylinder:
C2486A 968 924
C2488A
C2490A 1,496 1,428 1,360 1,292 1,224
per
Cylinder:
C2486A 495,616 473,088 450,560 428,032 405,504
HP
C2486A/88A/90A
only.
capacities
will change.
(597,256) (570,108)
SCSI
Capacities
Zone
152
88
49,056 43,008
(54,296) (51,828)
1,232
Unformatted
7
Zone
are
148
84
1,176
calculated
Disk Drive Capacities (continued)
using a 512-byte
capacities
8
Zone
146
40,960
(49,360) (46,892) (44,424) (41,956)
880 836
1,120 1,064 1,088 952
(542,960)
are
Zone
9
80 76
38,912 36,864
(515,812) (488,664) (461,516)
given in
10
136
sector.
When
parenthesis ( ).
Zone
11
164
72
792
other
sector
12
Zone
(hIDer)
180
64
32,768
(39,488)
704
896
1,088
(434,368)
Zone
144
68
34,816
748
1,156
382,976 360,448
13
Notes:
1.
There
cylinders
whole
are
2531
reserved
number.
C2488A 630,784 602,112 573,440
(760,144) (725,592) (691,040) (656,488)
765,952
(923,032) (881,076) (839,120)
per
drive,
maintenance
3,
Table
731,136
allocated
information.
3-1 for a
as
follows: 2467
complete
total
for
Refer
C2490A
cylinders
logs
and
to
Chapter
544,768 516,096 487,424 458,752
696,320 661,504
(797,164) (755,208)
dMa
Partial
cylinder
cylinders,
cylinders
allocation
(621,936) (587,384) (552,832)
626,688 591,872
(713,252) (671,296)
62
spare
have
been
list.
cylinders,
rounded
to
the
and
next
557,056
2
DRAFT
1/18/93 09:58
Product Specifications 1-5
Operating Specifications
Table 1·2.
Note:
The
HP C2486A/88A/90A disk drives must be operated within
Requirements specified in Table 1-4 in order for them to function properly.
Interface
Controller:
Overhead
Buffer size
Buffer type
Sector size
Interleave
Logical block size
Seek Times
Track
Head Switch Time
A verage Random
Maximum Seek
Notes:
Seek time
settled over the target track.
overhead time.
measured under normal temperature and voltage conditions.
.............................................................
time
...........................................................
.........................................................................
......................................................................
........................................................
.................................................................................
.......................................................
(includes settling time)
to
Track Seek
............................................................
Seek
Reads
Writes
....................................................................
.....................................................................
...............................................................
is
defined
The
HP
C2486A/88A/90A Operating Specifications
the
..........................................................
as
the titne from when the actuator begins to move until the head has
It
does not include any controller overhead time or any initiator
values above are derived from a representative sample of disk drives
Disk Drive Environmental
Industry
Standard
SCSI-2
< 500 microseconds
256
kbytes
Dual-ported
180
- 744
Data
Field Bytes
1:
512, 1024,2048, 4096
2.5 milliseconds
< 1 millisecond
8.75 milliseconds
9.5 milliseconds
18
milliseconds
1
Track
to
track seek time is the mean value of all seek times measured when performing all
possible single track seeks.
A verage random seek time is the time to
possible.
Maximum seek time
Spin-up Time
From
Power-On to Ready for Access
Typical:
From
Typical:
Maximum:
Disk Rotating
Rotational Latency (Average time)
........................................................................
Power-On
.........................................................................
Speed
is
the time
to
SCSI Bus Selection
.......................................................................
...................
1·6 Product Specifications
do
all possible seeks divided
it
takes
to
seek 2531 physical cylinders.
,
.......................................
.....................................
by
the number
4.69 milliseconds ±O.5%
6400
of
seeks
14 seconds
3 seconds
5 seconds
rpm
±0.5%
DRAFT
1/18/93 09:58
Table 1·2.
HP
C2486A/88A/90A Operating Specifications (continued)
Internal Data Transfer Rates (Controller/Disk)
Burst Rates (for single sector transfers):
Inner Zone to
Outer Zone
....................
4.2 to
7.1
Mbytes (34
Sustained Rates: (for continuous transfers; excludes controller overhead)
Inner Zone to
Outer Zone
.................
2.1
to 3.7 Mbytes (17.1
External Data Transfer Rate (Host/Controller)
to
57
Mbits) per second
tq
29.5 Mbits) per second
N arrow
Single-Ended/Differential
Asynchronous
Synchronous
.......................................................
.................................................
2.5 Mbytes per second
up to 10.0 Mbytes per second
Wide Differential
Asynchronous
Synchronous
.......................................................
.................................................
up
5.0 Mbytes per second
to
20.0 Mbytes per second
Recoverable Data Error Rate
Less
than
ten (10) errors in
13
10
bits transferred when the disk drive
is
operated within the
specified environmental limits.
data
Note: A recoverable
with the execution of a recovery algorithm. The recovery action is reported
Sense
Key
of
1.
(Refer to the Request Sense command in Appendix A.) Mode pages must be in
error occurs when a read or write operation sucessfully completes
to
the host with a
the factory default states.
Unrecoverable Data Error Rate
Less
than
ten (10) errors in
15
10
bits transferred when the disk drive is operated within the
specified environmental limits.
data
Note: An un-recoverable
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
Sense
Key
of
3.
the host with a
must be in the factory default states.
pages
(Refer to the Request Sense command in Appendix A.) Mode
Seek Error Rate
Less
than ten (10) seek errors in
environmental limits.
seek
Note: A
error occurs when the drive does not successfully locate the desired cylinder and
head.
Recording Density
Bit Density:
Track Density:
Coding System
DRAFT
..........................
......................................
............................................
1/18/93 09:58
107 seeks when the drive
:
...............
2303
108
is
operated within the specified
bits per
mm
(58,500 bits per inch)
tracks per mm (2750 tracks per inch)
1,7 Run Length Limited (RLL) Code
Product Specifications 1·7
Table
Electromagnetic Emissions
1·2.;
HP
C2486A/88A/90A
Operating
Specifications
(continued)
Current Electromagnetic Compatibility
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.
Acoustical Noise: Typical values measured as average sound pressure
converted to average sound power (in bels) per
Idling:
A-Weighted
Sound Power:
Seeking:
A-Weighted
Sound Power:
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.
lEe
.................................................
UL
.......................................................................
CSA
EN
............................................................................
TUV
DEMKO
Sound Pressure:
......................................................................
Sound Pressure:
......................................................................
...................................................................
................................................
....................................................
.....................................................
.....................................................
(EMC) regulations
ISO 7779.
do
not specify or require testing
at
one meter per ISO 7779;
950,
1st Edition, Amendments 1 and 2
1950, 1st Edition
C22.2
No.
60950,
EN
60950,
1988;
DIN
VDE 0805/05.90
EMKO-TUE (74-SEC) 203/91
37
4.9 bels
39
5.1 bels
950-M89
at
db(A)
db(A)
1988
Physical Characteristics
Unit Weight
Shipping Weight (Single-Unit Package)
Shipping Weight (Ten-Unit Package)
Dimensions:
Length
Width
Height
(Dimensions exclude front bezel. Additional information is provided in Chapter 2.)
..................................................................
........................................
.............................
.................................................................
.................................................................
..................................................................
".:.:
..........
1.1
kg (2.4 Ibs)
1.7 kg (3.7Ibs)
12.5
kg
(27 Ibs)
146.1 mm (5.75 in.)
101.6 rom (4.00 in.)
41.3 rom (1.63 in.)
1·8
Product
Specifications
DRAFT
1/18/93 09:58
DC
Power
Characteristics
All values assume
in Table 1-4.
+5 V dc
Narrow,
Narrow,
Narrow,
Wide,
Wide,
Dual
(Idle)
Dual
(Active)Note 3
+12
All
Current
Single-Ended
Differential (Idle)
Differential (Active)Note 3
Differential (Idle)
Differential (Active)Note 3
Port,
Port,
Vdc
Narrow,
Narrow,
(ave)
Differential
Differential
Current
input
voltages
Table 1·3.
Note
4
are
within
HP
C2486A/88A/90A
Start-Up
Typ/Max Typ/Max
1.08
1.3
A /
tbd
tbd
tbd
tbd
tbd
limits specified
A /
1.18
A
1.44
A
A /
tbd
A
A /
tbd
A
A /
tbd
A
A /
tbd
A
A /
tbd
A
DC
under
Input Power Requirements
Power Characteristics
Running
(Note
1)
1.08
A /
1.18
A
1.3
A /
1.44
A
tbd
A /
tbd
A
tbd
A /
tbd
A
tbd
A /
tbd
A
tbd
A /
tbd
A
tbd
A /
tbd
A
0.95
A /
1.05
A
Seeking
Typ/Max
(Note
1.08
A /
1.3
A /
tbd
tbd
A /
tbd
tbd
tbd
1.02
A /
A /
A /
A /
A /
2)
1.18
1.44
tbd
tbd
tbd
tbd
tbd
1.12
A
A
A
A
A
A
A
A
+12
Vdc
All
Power
Narrow,
Narrow,
Wide,
Differential
Dual
Port,
Notes:
1.
Spindle
2.
Assuming
3.
Differential
4.
Typical
currents
5.
Peak
(peak)
Current
Single-Ended
Differential
Narrow,
up
+12
(running
values
Differential
to
speed
random
tranceivers
Vdc
shown
and
operation
transmitting
currents
and
seeking)
are
for
Notes
4, 5
actuator
with
are
for
are
occurrences
3.20
tbd
tbd
tbd
tbd
is
track
a
30%
seek
and
receiving.
sustained
for
initial
greater
A /
3.20
W /
tbd
W /
tbd
W /
tbd
W /
tbd
following.
duty
drive
drive
than
A
W
W
W
W
cycle.
operation
turn-on
at
5 milliseconds
at
25°
0°
tbd
tbd
tbd
tbd
ambient
C
ambient
duration.
W /
tbd
W /
tbd
W /
tbd
W /
tbd
temperature.
temperature.
W
W
W
W
tbd
tbd
tbd
tbd
tbd
Maximum
A /
W /
W /
W /
W /
+12
tbd
tbd
tbd
tbd
tbd
Vdc
A
W
W
W
W
DRAFT
1/18/93
09:58
Product Specifications 1·9
Environmental
R~quirements
The environmental requirements for proper operation of the HP C2486A/88A/90A Disk Drive
are listed in Table 1-4.
Table 1-4.
Input Power
Voltages
Regulation
(±10% tolerance allowed for +12V during start-up.)
Ripple and Noise:
+5 V .........................................................................
+12 V
Ambient
Operating
Nonoperating
(Maximum rate of change shall not exceed 20°C (36°F) per hour.)
Airflow Requirements
Narrow, Single-Ended Drives
Narrow, Differential Drives
Wide, Differential Drives
For more information:
General installation guidelines
Narrow, Single-Ended Drives
Narrow, Differential Drives
Wide, Differential Drives
........................................................................
..............................................................................
........................................................................
Air
Temperature
.......................................................
.................................................
HP
C2486A/88A/90A Environmental Requirements
.......................................................
.........................................................
...........................................................
...........................................
...........................................
.............................................
..............................................
+5
V,
+12 V
±5%
<
100
mVp-p
<
200
mVp-
5°C
to
50°C (41°F to 122°F)
-40°C to 65°C (-40°F to 149°F)
3 to 5
cfm
3 to 5 cfm
4 to 6 cfm
refer to Chapter 2
refer to Appendix E
refer to Appendix F
refer
to
Appendix G
p
Relative Humidity
Operating
Nonoperating (storage and shipping)
(Excludes all conditions which can cause condensation in or on the disk drive.)
Altitude
Operating
Nonoperating
Tilt
The disk drive will meet all performance specifications on any of the major mounting axes.
Refer to Chapter 2 for mounting instructions.
1·10 Product Specifications
.............................................
........................
....................
..................
-
305 m (-
-
305 m (-
8%
to
80%
with wet bulb limit of 28°C
5%
to
90%
with wet bulb limit
1,000 ft) to 3,048 m (10,000 ft) above sea level.
1,000 ft)
to
15,240
IIi
(50,000 ft) above sea level.
of
28°C
DRAFT
1/18/93 09:58
Table
Shock
Operating:
Applied Acceleration
The
drive meets recoverable
1-2)
with
default
state.
1·4.
HP
C2486A/88A/90A Environmental Requirements (continued)
(half
no recoverable
sine)
................................
and
unrecoverable
or
unrecoverable hardware faults. Mode pages must
data
error
3.0 g (peak),
rate
specifications (refer
11
milliseconds
to
be
in
factory
Table
Applied Acceleration
The
drive meets unrecoverable
(half
sine)
unrecoverable hardware faults. Mode pages
Nonoperating:
(half
Applied Acceleration
The
drive meets recoverable
1-2) with no recoverable
Mode pages
must
be
sine)
and
or
unrecoverable
in
factory default
Notes:
A recoverable
or
track
hardware
following error,
recovery algorithm.
to
the
Request Sense
fault
occurs when the drive detects a
and
successfully completes the
The
recovery action is
command
states.
to
the
states.
fault
and
Request Sense
An un-recoverable hardware
or
track
seek
execution
Sense Key
in
the
Swept Sine
factory default
following error,
of
a recovery algorithm.
of
4.
(Refer
Vibration
Operating:
..............................
data
error
rate
specifications (refer
must
be
in factory default
................................
unrecoverable
data
hardware
error
faults
rate
and
state.
operation
reported
to
the
in Appendix A.) Mode pages
occurs when
does
not
The
unsuccessful
the
drive
detects a hardware
successfully complete
operation
command
in
Appendix
10.0 g (peak),
to
Table
state.
50 g (peak),
specifications (refer
no
damage
hardware
host
with
must
is
the
reported
error, such
with
the
a Sense Key
be
in
operation
A.) Mode pages
11
milliseconds
1-2)
with
11
milliseconds
to
to
the
mechanism.
as
execution
of
the
factory default
error, such as a
with
to
the
host with a
no
Table
a seek
of
1.
the
must
a
(Refer
be
Applied Acceleration
The
drive meets recoverable
1-2) with no recoverable
default
state.
Applied Acceleration
The
drive meets unrecoverable
unrecoverable hardware faults. Mode pages
Nonoperating:
Applied Acceleration
The
drive meets recoverable
1-2) with no recoverable
Mode pages
must
be
DRAFT
1/18/93 09:58
............................................
and
unrecoverable
or
unrecoverable
data
hardware
..............................................
data
error
rate
specifications (refer
must
be
..............................................
and
unrecoverable
or
unrecoverable hardware faults
in factory default
state.
data
0.25 g
error
rate
specifications (refer
faults. Mode pages
0.5 g
to
Table
in
factory
default
2.0 g (peak), 5
error
rate
specifications (refer
and
no
damage
Product Specifications 1·11
(peak), 5 to
must
be
(peak), 5 to
1-2)
state.
to
the
500 Hz
to
Table
in
factory
500
with
no
to
500
to
Table
mechanism.
Hz
Hz
Table 1·4.
Electromagnetic Compatibility (EMC)
HP
C2486A/88A/90A Environmental Requirements (continued)
Current EMC regulations do not specify or require testing
since EMC is highly dependent upon the characteristics of the system in which
installed.
Although regulatory testing is not required, these products have been characterized
individual components using Hewlett-Packard standardized tests. These tests are summarized
below.
Electromagnetic Susceptibility
Radiated
Conducted
+5 V ..............................................
+12 V .............................................
Magnetic
.....................................................
...........................................................
at
the component (standalone) level
the
<
3V
1m
from
14
<
200
m Vp-p from
100
kHz to 250
< 400 mVp-p from 100 kHz
< 4 gauss, 47.5 to
product is
as
kHz
to
to
250
1 GHz
MHz
MHz
198
Hz
1·12 Product Specifications
DRAFT
1/18/93 09:58
Product Installation
Introduction
2
This chapter provides information for
drive.
Handling
The purpose of a correct installation is
Continually subjecting
results in stress on
possible combinations of stresses have not been tested
applying worst case extremes of several environment parameters are unpredictable.
Protection From Mechanical Shock
Before installation,
during shipping
Caution
Guidelines
the
the
product and can result in early failure or less reliable operation. All
the
disk drive is susceptible to damage from excessive shock
and
handling.
Always handle
and setting
disk drive
the
it
down too
the
mechanical and electrical installation
to
provide
to
the
disk drive carefully
hard
an
extremes
or dropping it.
optimum environment for
of
the
environmental specifications
and
the
to
results
reduce
the
of
simultaneously
danger
of
of
the
and
losing control
,
Always place
Always install a grounded cushioning
storage racks used for handling and storing disk drives.
the
drive top side up on a fiat surface when
pad
on
hard
it
is unmounted.
surfaces such as tables
the
disk
disk drive.
vibration
and
Never stack drives on top of each other.
Protection from Electrostatic Discharge (ESD)
The
electronic components in these products can
(hidden) damage by
hands
Caution
and
table surfaces.
the
currents generated from
Never handle
surfaces and
is first discharged
I
Always
before
grounded
DRAFT
1/18/93 09:58
put
it
is handled by a non-grounded person, before moving
(ESD safe) work area, and before
be
permanently destroyed
the
normal
the
drive outside its anti-static bag unless
the
operator
to
the
drive inside
are grounded and
the
surroundings.
the
anti-static
static
the
bag
it
is
electricity
outside of
or
other
to
be stored.
or
. suffer
that
the
surrounding
the
anti-static
approved container
it
Product Installation 2·1
latent
resides on
bag
away from a
Unpacking
the
Disk
Drive
Note
The disk drive is shipped in a reusable shipping container. Retain
container and all packing material for re-shipment.
Inspecting the Shipping Container
When your shipment arrives, ensure
lading. Inspect
during transit.
be
present when
the
shipping container immediately upon receipt for evidence of mishandling
IT
the
container is damaged or water stained, request
the
container is unpacked.
that
.-.
it
is complete as specified by
the
carrier's bill of
that
the
the
shipping
carrier's agent
Inspecting the Disk Drive
Remove the disk drive from the shipping container and inspect
that
may have occurred during shipment.
Hewlett-Packard and
file
a claim with any carrier involved.
If
any damage is observed, immediately notify
it
for any mechanical damage
Recording the Serial Number
Each drive carries an individual serial number. Keep a record of all serial numbers and dates
of purchase.
recovery, as well as for any insurance claims.
IT
your drive is lost or stolen, this information is often necessary for tracing and
Disk
Drive
Returns
Return Shipment Addresses
Vendor
Return the drive(s)
ordering information for
Hewlett-Packard Direct
Purchases
to
the vendor from which
that
address.
Purchases
it
was purchased. Refer
to
your original
H you purchased your drive(s) directly from Hewlett-Packard, contact your Hewlett-Packard
sales representative for instructions.
..
2-2
Product
Installation
DRAFT
1/18/93 09:58
Re-Packing
For
Shipment
Use the original container and packaging material supplied with
If
the original packaging material is not available, contact your Hewlett-Packard sales
representative for replacements. Figure
the
illustrates
ten-unit packaging.
2-1
illustrates
the
single-unit packaging and Figure 2-2
SEAL ANTI-STATIC
AFTER INSERTING
the
drive for any shipments.
BAG
DRIVE.
WSPDH201
DRAFT
1/18/93 09:58
Figure
2-1.
Single-Unit
Length:
Width: 8 5 in
Height: 6.25 in
10.0 in (254mm)
(216mm)
(159mm)
Shipping Weight: 3.5
Packaging
Product
lbs
(1.6kg)
Installation
2-3
SEAL ANTI-STATIC
BAG
PACK EVENLY
OUTWARD
LESS THAN
DRIVES
WHEN
10
..
WSPDM103
FROM
SHIPPING
••
CENTER
.-.A
Dimensions:
Length:
Width:
Height 9.75 in (248mm)
Shipping Weight: 25
17.75
136
in
(451mm)
in (346mm)
lbs
(1125kg)
2-4
Product
Installation
~igure
2-2.
Ten-Unit
Packaging
DRAFT
1/18/93 09:58
Mounting
Information
The disk drive can be mounted in any of
Safety /Regulatory
• When installing an HP C2486A/88A/90A Disk Drive into
regulatory Conditions of Acceptability must be considered. Contact your sales/service
representative for a-copy of
•
If
the
front bezel option has been installed,
application.
•
If
installing an HP C2486A/88A/90A Disk Drive with an
complete installation should be evaluated in
Chassis
The
the
only and do not include clearances for power and interface connectors.
Physical
There are twelve (12) threaded mounting holes (for no. 6-32 screws) on
each side, and four on the
respective appendices for each option.
Dimensions
physical dimensions and mounting screw locations for each interface option are shown in
respective appendices for each option.
Mounting
Compliance
the
Hewlett-Packard Conditions
and
Mounting
bottom
(see Figure 2-3).
the
major
Screw
The
mounting axes.
an
end
of
Acceptability.
it
should be evaluated in
adaptor
the
intended end use application.
Locations
length dimensions shown are for
Use
the mounting guidelines listed in
use
product, safety
the
intended end use
mounting frame,
the
the
disk
drive: four on
and
the
chassis
the
Airflow
The
drive is maintained within
1.
Airflow
drive should be operated as cool as possible.
option are listed in Table 1-4.
function
The
measuring points on
respective appendix for each interface option.
All temperature measurements should be made under worst case operating conditions, These
conditions should be maintained for
before making any measurements.
Requirements
disk drive must be installed
is
required to maintain disk drive performance and reliability. For best results,
of
the
specific airflow
airflow
pattern
around
the
HDA and
so
that
the
ambient air temperature surrounding
the
limits specified under Environmental Requirements in
The
airflow requirements for each interface
The
majority of
pattern
the
drive should be adjusted to prevent
inside
the
PCA
at
least one hour
the
air should
the
cabinet where
from exceeding
to
allow
flow
across
the
the
maximum limits shown
the
drive
the
disk drive is installed.
the
temperature
to
the
disk
Chapter
the
PCA. This is a
in
the
reach equilibrium
DRAFT
1/18/93 09:58
Product Installation 2·5
Front
The
the
Panel
light
emitting
operational
status
normal operation.
LED
Indicator
diode (LED) on
of
the
the
front of
the
disk drive is
drive from power-on, through
an
activity light
the
self-test diagnostics, and into
that
indicates
LOn
2.
Flashing
3.
Intermittent
Address
The
location
interface option
and
Configuration
and
set-up of
and
its
the
associated
contained in its own appendix
use .
• Table
2-1
lists
the
currently supported interface options, their associated
electronics/controller
peA
.
peAs,
At
Power-On,
turns
off.
If
the
execution
and
If
the
execution
A flashing
portion
After
the
light
and
writing.
address
to
this manual. Save any removed shorting jumpers for future
and
the
LED
turns
Auto-SpinUp
of
testing
Auto-SpinUp
of
LED
of
the
internal
power-on diagnostics
will go
If
the
option
the
SpinUp
the
read/write
option
the
SpinUp
(approximately
diagnostic
on
any
LED
is off,
Pin-Set
and
configuration pin-sets depends upon
peA.
the
appendices
The
information for each interface option is
on
until
jumper
sequence,
system.
is
not
sequence only.
1 Hz)
tests.
have
time
the
disk
the
drive is idle.
Set-ups
that
provide configuration details for each
the
Power-On
is
installed,
calibrating
installed,
indicates
completed,
drive
is
sequence
the
Power-On
the
head
the
Power-On
that
the
the
LED
executing a command,
is
sequence
positioning
sequence
controller
functions
complete
has
the
as
and
includes
electronics,
includes
failed
all
an
activity
reading,
drive
then
or
or
a
• Table 2-2 lists
explanation of each.
Table
Interface
001 SCSI-2,
002
012 SCSI-2,
2-6
Product
Installation
the
currently supported configuration options
2-1.
Option
AddressiConfiguration
Fast,
SCSI-2,
Fast,
Fast,
Pin-Set
Interface
Narrow, Single-Ended
Narrow, Differential
Wide,
Differential
Information
peA
and
provides a brief
Locations
Appendix
Appendix
Appendix
Appendix
E
F
G
DRAFT
1/18/93 09:58
Table
2·2.
Address/Configuration
Option
Descriptions
Configuration
Auto
Spin
Up
Parity
SCSI-l/SCSI-2
SCSI Address Selection Narrow SCSI drives
Synchronized
Option
Spindle.
When
shorted,
not
will
spin
up
SENSE, INQUIRY, RESERVE, RELEASE,
access.
When
shorted,
drive does
shorted.
When
open,
default is SCSI-2.
pin-sets which sets
factory
These
pinsets
if
the
Synchronous Spindle Mode is disabled.
the
Stand
power-on
Select
command
these
functions, including positional offset from
•
When
It
It
•
When
It
It
•
When
It
It
the
spin
up
until
mode
the
the
not
check for parity.
the
drive checks Mode
with
shorting
control
Alone, Slave,
default
for all drives is
page
the
drive is
does
not
the
the
not
drive is
not
sync
drive is
transmit a sync
sync
transmit a sync
to
does
does
will
transmits
syncs internally
Description
disk drive will automatically
the
Initiator
drive will
disk drive checks
When
shorted
are
shipped
up
a SCSI Address
jumpers
the
routing
and
04 infomation
in
the
to
allY
set
to
an
externally sourced slave
set
to
a sync signal
to
return
Parity
the
from
across
Master
the
Stand
signal.
externally
the
SIa1le
signal.
the
Ma8ter
on
the
same signal.
sends a Start
"Not
Ready"
parity
on
bits
are
Page
09,
drive is forced
the
factory
of
7.
all
four pin-sets which
of
the
Synchronized Spindle signals.
modes,
Stand
Alone Mode. Refer
in
Appendix A for more details
Alone
mode:
sourced slave sync
mode:
mode:
the
sync
spin
up
Unit
command.
to
all
and
START
commands
generated
byte
8,
bit 4 and
to
with
Wide
SCSI
The
C2486A/88A/90A
but
not
the
the
input
sync
signal.
pin.
at
power on. H
When
commands
UNIT
and
whether
respond
shorting
drives
Master
except
until
data.
this
responds accordingly.
as
a SCSI-! device.
jumpers
are
shipped
sets
up
Control
to
the
sync
signal.
inputs.
open,
the
not
in
the
REQUEST
the
drive
is
ready
When
open,
pin-set
across
a SCSI Address
They
disk drives
mode.
Mode
about
the
is
open
all
from
the
have
no
support
The
Sense/Mode
implementing
drive
auto
disk
or
The
three
of
effect
for
15.
Synchronous
Request
Termination
Unit
Write
(SDTR)
Attention
Protect
Data
Transfer
Power Source
When
open,
host-initiated
Determines
Controls
When
the
is
NOT
A for more details.
DRAFT
1/18/93 09:58
shorted,
the
shorted,
Write
drive will
the
the
Unit
Protect
write
protected.
the
SDTR
power
Attention
the
function
drive will
not
initiate
message
source
entire
drive is forced
Refer
initiate
an
whether
and
function:
can
be
to
an
SDTR
SPTR
this
routing
Shorted
into
controlled
the
Mode
message
message.
pin-set
is
for
the
on-board
= disabled;
the
media
with
the
Select/Mode
at
power-on
The
drive
open
or
terminators.
Open = enabled.
Write
Mode
Sense
Product
and
willl'espond
shorted.
Protect
Select
command.
explanation
RESET.
to
a
mode.
When
The
in
Appendix
Installation
When
open,
default
2·7
Drive
You should be aware
bus.
To
Interface
Connections
,
of
the following considerations when connecting
the
drive
to
the
SCSI
• Static
• Resistive/Capacitive Loading • "Glitch" Generation
Caution
I
The effects of connecting a drive
• Drive powered
1. Connecting or removing a powered-off drive
2.
3.
Damage
1. A void static damage
handling and grounding procedures.
When plugging
ground
When unplugging
SCSI connector before disconnecting
2.
The active terminators must have terminator power (TermPwr) applied
all times; either from
off:
Connecting or removing a powered-off drive
the
bus
is
loaded and terminated according
The
SCSI bus will operate properly with one or more drives connected
• Stub Length • Terminator
to
all components of a bus system by observing proper
a drive into an active or inactive bus, connect
to
the
system ground before connecting
a drive from an active or inactive bus, disconnect
the
SCSI bus pin 26, or from
to
the
SCSI bus are as follows:
to
the
power connector.
to/from
to/from
an inactive bus will have no effect.
an active bus will have no effect
the ANSI specification.
Power
the
SCSI connector.
the
drive, or both.
but
the
drive's
the
at
if
powered-off.
4. Applying power
is loaded and terminated according to
• Drive powered on:
1. Connecting
2.
Connecting or removing a powered-on drive
the
bus is loaded and terminated according
3. Removing power from a powered-on drive connected
bus is loaded and terminated according
to
a powered-off drive connected to
or
removing a powered-on drive
the
ANSI specification .
to/from
to/from
to
to
the
the
bus will have no effect if
an inactive bus will have no effect.
an active bus will have no effect
the
ANSI specification.
to
the bus will have no effect
ANSI specification.
the
if
bus
if
the
2-8 Product Installation
DRAFT
1/18/93 09:56
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