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IBM OEM Storage Products
DPES-30540, DPES-30810, DPES-31080
IBM OEM has introduced a new range of disk drives for the desktop personal computer
marketplace. Available in three popular capacity points with SCSI-2 FAST interface, the
drives provide excellent performance and improved reliability.
APPLICATIONS
Desktop personal computers
Low end file servers
Low end workstations
FEATURES
540, 810 and 1080 MB formatted capacities
(512 byte/sector)
10 MB/s data transfer speed
55.1 MB/s (OD) media data rate
39.8 MB/s (ID) media data rate
No sector ID format
Average seek time 10.5 ms (Read)
5400 RPM
448 KB sector buffer with adaptive segment length
Read ahead caching with LRU segment update
Industry standard mounting
The drive can be counted with any of its six surfaces facing down
Enhanced ECC implementation
Power saving modes
Robust design for EMC/FRI
MR (Magneto Resistive) head technology
BENEFITS--
Generic range of popular storage capacity
Fast interface data rate
Excellent performance on long records
Fast access to data
Fast data retrieval in single and multi-tasking applications
Ease of installation
Improved data throughput
Reduced power consumption
Easy integration across multiple platforms
High area density, low component count
Assured reliability
CONNECTORS
Pin 1
SCSI I/F Power
Connector Connector
Pin 2
Power
Connector
JP7
Option Block
JP1 Back Side of Drive
SCSI I/F
Connector
Logic Card
The DC power connector is designed to mate with AMP part 1-480424 (using AMP pins P/N
350078-4). Equivalent connectors may be used. Pin assignments are shown below, as
viewed from the end of the drive.
Pin# 1 2 3 4
+5V GND GND +12V
SCSI SIGNAL CONNECTOR
The SCSI Signal Connector is a 50 pin connector meeting the ANSI SCSI specification
Note: It is intended that the hard disk drive should only be in electrical contact with the
chassis of the PC at a designated set of mounting holes. Other electrical contact may degrade
error rate performance. As a result of this it is recommended that there should be no metal
contact to the hard disk drive except at the mounting holes or the side rails into which the
mounting holes are tapped.
OPTION BLOCK
Jumper Setting
Jumper position and function are as shown below. Pin pitch is 2 mm.
The jumpers control SCSI Device ID, Auto Spin Up, Unit Attention, SCSI Terminator
Connection, and Target Initiated Synchronous Negotiation.
Disable Disable
Unit TI
Device ID Attention Negotiation
JP1 JP2 JP3 JP4 JP5 JP6 JP7
1 3 5 7 9 11 13
2 4 6 8 10 12 14
Disable Enable
Auto Terminator
Spin-up
Notes:
1. The jumper position of JP1, 2, and 3 define SCSI ID of the drive If JP1,JP2,JP3 are
Off,Off,Off the SCSI ID is 0 (shipping default) If JP1,JP2,JP3 are On,Off,Off the SCSI
ID is 1 If JP1,JP2,JP3 are Off,On,Off the SCSI ID is 2 If JP1,JP2,JP3 are On,On,Off the
SCSI ID is 3 If JP1,JP2,JP3 are Off,Off,On the SCSI ID is 4 If JP1,JP2,JP3 are
On,Off,On the SCSI ID is 5 If JP1,JP2,JP3 are Off,On,On the SCSI ID is 6 (set at
shipping) If JP1,JP2,JP3 are On,On,On the SCSI ID is 7
2. If JP4 is Off, the drive will spin up automatically after power on reset. If JP4 is On, the
drive will not spin up unless the host system issues a start command to the drive with the
start bit set to one.
3. If JP5 is On, Unit Attention after power on reset or SCSI bus reset is disabled.
4. If JP6 is On, the internal SCSI active terminator works.
5. If JP7 is On, Target Initiated Synchronous Negotiation is disabled, and then the Initiator is
required to start a negotiation handshake if Synchronous SCSI transfers are desired.
DEFAULT SETTING
The default jumper setting at shipment is as follows.
OPERATING ENVIRONMENT
Operating Conditions
Temperature 5 to 55 degrees C*
Relative Humidity 8 to 90% non-condensing
Maximum Wet Bulb
Temperature 29.4 degrees C non-condensing
Maximum Temperature
Gradient 15 C/Hour
Altitude -300 to 3048m
Non-Operating Conditions
Temperature -40 to 65 degrees C
Relative Humidity 5 to 95% non-condensing
Maximum Wet Bulb
Temperature 35 degrees C non-condensing
Maximum Temperature
Gradient 15 C/Hour
Altitude -300 to 12,000m
Note* The system is responsible to provide sufficient air movement to maintain surface
temperature below 60 C at the center of top cover of the drive.
Operating Shock
The hard disk drive meets the following criteria while operating in respective conditions
described below. The shock test consists of five shocks inputs in each axis and direction for
total of 30. There must be a delay between shock pulses, long enough to allow the drive to
complete all necessary error recovery procedure.
No data loss, seek error or permanent damage:
10G 11 ms half-sine shock pulse
No data loss, or permanent damage:
15 G, 5 ms half-sine shock pulse
30 G, 4 ms half-sine shock pulse
Operating Vibration
Due to the complexity of this subject we recommend that users contact the IBM technical
support group representative to discuss how to perform the necessary measurements if they
believe this to be an area which requires evaluation.
DC POWER REQUIREMENTS
The following voltage specifications apply at the file power connector. Damage to the file
electronics may result if the power supply cable is connected or disconnected while power is
being applied to the file (No hot plug/unplug is allowed). There are inductive loads in the file
which could cause destructively high voltage spikes on the file if the power connection is
opened. There is no special power on/off sequencing required.
Nominal Supply Voltages +5 volts +12 volts
Power Supply Ripple
{mV}(0-10{MHz}P-P) 100 max 150 max (2)
Tolerance +/-5% +10%/-8%
Supply Current
(Populated Mean)
Idle (average) 0.26 0.12/0.16 {A/B(1)}
R/W (average) 0.62 0.24/0.28 {A/B(1)}
Seek (average) 0.46 0.34/0.37 {A/B(1)}
Standby 0.22 0.02
Start up (Peak) 0.64 1.20
Notes:
(1) A/B shows that A is for DPES-30540 and B is for DPES-30810 and DPES-31080.
(2) The maximum ripple is measured at input of the drive.
(3) The drive does not incur damage by an over-voltage condition of +25% and the
maximum duration of 20 {msec}.
During the file start up and seeking, 12 volt ripple is generated by the file (referred to as
dynamic loading). If several files have their power daisy chained together then the power
supply ripple plus other file's dynamic loading must remain within the regulation tolerance of
+10/-8%. A common supply with separate power leads to each file is a more desirable
method of power distribution.
To prevent external electrical noise from interfering with the file's performance, the file must
be held by four screws in a user system frame which has no electrical level deference at the
four screws position, and has less than +/-300 millivolts peak to peak level deference to the
file power connector ground.
DATA ORGANIZATION
Logical Layout DPES DPES DPES
-30540 -30810 -31080
Bytes per Sector 512 512 512
Number of Heads 2 3 4
Number of Disks 1 2 2
Number of LBAs 1058400 1586592 2116800
Total logical Data 514900800 812335104 1083801600
Bytes
SIGNAL DEFINITION
The pin assignments of interface signals are listed as follows:
PIN Signal PIN Signal
01 Ground 02 -DB(0)
03 Ground 04 -DB(1)
05 Ground 06 -DB(2)
07 Ground 08 -DB(3)
09 Ground 10 -DB(4)
11 Ground 12 -DB(5)
13 Ground 14 -DB(6)
15 Ground 16 -DB(7)
17 Ground 18 -DB(P)
19 Ground 20 Ground
21 Ground 22 Ground
23 Ground 24 Ground
25 Open 26 TRM Power
27 Ground 28 Ground
29 Ground 30 Ground
31 Ground 32 -ATN
33 Ground 34 Ground
35 Ground 36 -BSY
37 Ground 38 -ACK
39 Ground 40 -RST
41 Ground 42 -MSG
43 Ground 44 -SEL
45 Ground 46 -C/D
47 Ground 48 -REQ
49 Ground 50 -I/O
SCSI CABLE
The disk drive uses single-ended drivers and receivers which will permit cable lengths of up
to 6 meters (19.68 feet). For a single ended cable a 50 conductor flat cable or a 25 signal
twisted cable can be used with a maximum length of 6.0 meters, and a stub length not
exceeding 0.1 meters.
SCSI BUS TERMINATOR
The file has an internal Active SCSI bus terminator, and can be controlled on/off with one
jumper block provided at the card edge. The user is responsible for properly terminating and
powering the SCSI bus in the system.
MODE SELECT OPTIONS
Certain parameters are alterable using the SCSI 'Mode Select' command. This allows certain
drive characteristics to be modified to optimize performance on a particular system. Refer to
the DPES-3XXXX Interface Specification for a detailed definition of Mode Select
parameters. The changeable parameters are:
Page 0
Vendor Unique Parameters
UQE - Untagged Queuing Enable (1)
DWD - Disable Write Disconnect (0)
UAI - Unit Attention Inhibit (0)
ASDPE - Additional Save Data Pointer Enable (0)
CMDAC - Command Activated (LED) (0)
RPFAE - Report Failure Analysis Error (0)
CPE - Concurrent Processing Enable (1)
TCC - Thermal Compensation (0)
DSN - Disable Target Initiated Synchronous Negotiation (0)
FRDD - Format Degraded (1)
DPSDP - Data Phase Save Data Pointer (0)
CAEN - Command Age Limiter Enable (1)
LITF - Idle Time Function (0)
ADC - Adaptive Cache Enable (1)
QEMC - Queue Error Management Control (0)
DRD - Disable Read Disconnect (1)
LED - Not supported (0)
Command Aging Limit (48)
DRRT - Disable Read Reassign Target (0)
DNR - Disable Nested Reassigns (1)
Page 1
Read-Write Error Recover Parameters
AWRE - Automatic Write Reallocation Enable (1)
ARRE - Automatic Read Reallocation Enable (1)
TB - Transfer Block (0)
PER - Post Error (0)
DTE - Disable Transfer on Error (0)
DCR - Disable Correction (0)
Read Retry Count (01h)
Write Retry Count (01h)
Page 2
Disconnect/Reconnect Parameters
Read buffer Full Ratio (00h)
Write Buffer Empty Ratio (00h)
Page 7
Verify Error Recovery Parameters
PER (0)
DCR (0)
Verify Retry Count (01h)
Page 8
Caching Parameters
WCE - Write Cache Enable (1)
RCD - Read Cache Disable (0)
MF - Multiplication Factor (0)
Disable Pre-Fetch Transfer Length (0)
Minimum Pre-Fetch (0)
Maximum Pre-Fetch (0)
Maximum Pre-Fetch Ceiling (0)
Number of Cache Segments (7)
Page A
Control Mode Page Parameters
Queue Algorithm Modifier (0)
QErr - Queue Error (00h)
DQue - Disable Queing (0)
Page 0D
Power Condition
Standby (0)
Standby Timer (00h)
Note: (xx) default options at Shipment
MECHANICAL DATA
Dimensions
Height 25.4 +/-0.4 mm
Width 101.6 +/-0.4 mm
Depth 146.0 +/-0.6 mm
Weight 530 g maximum
Mounting Orientation
The drive can be mounted in any axis (6 directions)
146
+/-
0.6
.4
/- 0
.6 +
101
60.
3 +
/-0
.2
41.6
(6x) UNC 6-32
(4X) UNC 6-32 2
Back Front
60.3 44.4
25.4+/-0.4
146 +/- 0.6
101.6 +/- 0.4
LEFT FRONT
The maximum allowable penetration of the mounting screws is (1) 3.5 mm (2) 6 mm
ELECTROMAGNETIC COMPATABILITY
The drive meets the following EMC requirements when installed in the user system and
exercised with a random accessing routine at maximum data rate:
United States Federal Communication Commission (FCC) Rules and Regulations Part 15,
Subject J - Computer Devices "Class B Limits".
European Economic Community (EEC) directive #76/889 related to the control of radio
frequency interference and the Verband Deutscher Elektrotechniker (VDE) requirements of
Germany (GOP).
AMP is a trademark of AMP
Incorporated.
Molex is a trademark of
Molex Incorporated.
DATA MATE is a trademeark of
AMP Incorporated.
This data sheet is not a substitute for the full product specification, which should be used
when detailed information is required.
Product Description data represents IBM's design objectives and is provided for comparative
purposes; actual results may vary based on a variety of factors. This product data does not
constitute a warranty. Questions regarding IBM's warranty terms or methodology used to
derive this data should be referred to your IBM OEM representative. Data subject to change
without notice.
WARNING: This disk drive can be damaged by Electro-Static Discharge, please
follow recommended ESD procedures before unpacking or handling the drive. Ask
your dealer for details if you need assistance.
PACKAGING: The drive must be protected against Electro-Static Discharge
especially when being handled. The safest way to avoid damage is to put the drive
in an anti static bag before ESD wrist straps are removed.Drives should only be
shipped in approved containers, severe damage can be caused to the drive if the
packaging does not adequately protect against the shock levels induced when a box
is dropped. Consult your IBM marketing representative if you do not have an approved
shipping container.