Hitachi DPES-30540, DPES-30810, DPES-31080 Reference Guide

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
Connector

Power
Connector

JP7

Option Block

JP1

SCSI I/F
Connector

Logic Card

Power
Connector

Pin 2

Back Side of Drive

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

Disable

Disable

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.

Device ID

JP1

JP2

JP3

1

3

5

2

4

6

Notes:

1. The jumper position of JP1, 2, and 3 define SCSI ID of the drive If JP1,JP2,JP3 are

Unit
Attention

JP4

7

8

Disable
Auto
Spin-up

JP511JP6

9

10

TI
Negotiation

12

Enable
Terminator

JP7

13

14

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