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Hard Drive: IBM: DCHS-34550SEFW (04) 4550MB 3.5"/SL SCSI2 WIDE




D C H S - 3 4 5 5 0 S E F W     ( 0 4 )    IBM
                                                      Native|  Translation
                                                      ------+-----+-----+-----
Form                 3.5"/SLIMLINE         Cylinders        |     |     |
Capacity form/unform  4550/      MB        Heads           9|     |     |
Seek time   / track   7.5/     ms          Sector/track     |     |     |
Controller           SCSI2 SI/WI/FAST      Precompensation
Cache/Buffer           512 KB MULTI-SEGMEN Landing Zone
Data transfer rate   13.400 MB/S int       Bytes/Sector      512
                     20.000 MB/S ext SYNC
Recording method     EPRML                          operating  | non-operating
                                                  -------------+--------------
Supply voltage     -            Temperature *C         5 50    |    -40 65
Power: sleep              W     Humidity     %         5 90    |
       standby            W     Altitude    km    -0.300  3.000| -0.300 12.000
       idle               W     Shock        g         5       |
       seek               W     Rotation   RPM      7200
       read/write         W     Acoustic   dBA
       spin-up            W     ECC        Bit   ON THE FLY,SMART
                                MTBF         h
                                Warranty Month
Lift/Lock/Park     YES          Certificates

Layout

IBM DCHS-34550/DCHS-39100 ULTRASTAR 2XP PRODUCT DESCRIPTION

    68-Pin SCSI (Rear View)
    +-----------------------------------------------------+
    |                                                     |
    |                                                     |
    |                                                     |
    |                                                     |
    |++---------SCSI-----------------+-Aux.---+-Power---++|
    ||| +------------------------1-+ |+-----1+|+-------+|||
    ||| |\::::::::::::::::::::::::/| ||::::::|||XXXXXXX||||
    ||| +--------------------------+ |+-----2+|+-------+|||
    ||+------------------------------+Connect.+-4-3-2-1-+||
    ++                                                   ++

    50-Pin SCSI (Rear View)
    +-----------------------------------------------------+
    |                                                     |
    |                                                     |
    |                                                     |
    |                                                     |
    |++---------SCSI--------------------------+-Power---++|
    ||| +-----------------------------------1+|+-------+|||
    ||| |::::::::::::::::::::::::::::::::::::|||XXXXXXX||||
    ||| +------------------------------------+|+-------+|||
    ||+---------------------------------------+-4-3-2-1-+||
    ++                                                   ++

    80-Pin SCSI (Rear View)
    +-----------------------------------------------------+
    |                                                     |
    |                                                     |
    |                                                     |
    |         +---------------------------------+         |
    |+--------|/*******************************\|--------+|
    ||        +1--------------------------------+        ||
    ||                                                   ||
    ++                                                   ++

     Jumper Pin locations all models (Front view)
    +-----------------------------------------------------+
    |                                                     |
    |                                                     |
    |                                                     |
    |                                                     |
    |                                                     |
    |++1-----------------+-12-+--------------------------+|
    |||::::.:::::::::::::| oo |                          ||
    |++------------------+----+--------------------------+|
    ++                                                   ++

Jumpers

IBM DCHS-34550/DCHS-39100 ULTRASTAR 2XP PRODUCT DESCRIPTION

Jumper Setting
--------------

Option Jumper Block(s)
----------------------
DCHS models contain a jumper block that can be used to enable certain
features and select the SCSI ID of the drive. This jumper block is
referred to as the Front Option Jumper Block due it's location on the
drive (opposite the SCSI connector). This jumper block varies in pin
definition based on interface type (50, 68, Differential, SCA). The
Option Block connector (2 x 16) used on 50 pin models is an AMP
connector (P/N 84156-4) having a pin spacing of 2mm.

The Option Block connector (2 x 16) used on the 68 and 80 pin models
is an AMP connector (P/N 84156-5) having a pin spacing of 2mm.
68-pin models also contain a rear option jumper block that replicates
some of the functions contained in the front block.

                                                   Termination
                                                   Power Enable
 +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ +--+--+
 |1*|03|05|07|xx|11|13|15|17|19|21|23|25|27|29|31| |  |  |
 +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ |01|02|
 |2*|04|06|08|10|12|14|16|18|20|22|24|26|28|30|32| |  |  |
 +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ +--+--+
 *NOTE: PINS 1 AND 2 DO NOT EXIST IN 50-PIN MODELS!

Alternate Mode
--------------

    Option Block Mode (Jumper shown selecting Option Block Mode)
     |
     |      BIT
     |   3  2  1  0
  --++-+-++-++-++-++ +--+--+
    |XX|25|27|29|31| |  |  |
   -+XX+--+--+--+--+ |01|02|
    |XX|26|28|30|32| |  |  |
    +--+--+--+--+--+ +--+--+
     +--+---+--+--+
         Ground

Option Block Mode Pin
---------------------
The Option Block Mode pin is used to modify the function of the Front
Option Jumper Block. When the Option Block Mode Pin is not grounded
the pin function of the front Option Jumper Block will be as defined
by the upper portion of the referenced figures. When the Option Block
Mode Pin is grounded the pins (25, 27, 29, 31) will be redefined to
control what is referred to as Alternate Mode. Alternate Mode allows
tailoring of SCSI options such as boot up characteristics and other
operational features on a per customer basis.

 50/68 Pin Model Single Ended
 ----------------------------
 Pin| Description
 ---+---------------------------------------------------------
 01 | Bit 3 (MSB) (Do not exist in 50-pin models)--+
 03 | Bit 2                                      --+   Address
 05 | Bit 1                                      --+   Jumpers
 07 | Bit 0 (LSB)                                --+
 09 | Blank Polarity
 10 | Unused
 11 | Auto Start
 13 | +5V
 14 | Enable Active Termination
 15 | -Master Sync
 16 | -Slave Sync
 17 | External Activity LED
 18 | +5V
 19 | Write Protect
 21 | Auto Start Delay
 23 | Option Block Mode
 25 | Disable T.I. Sync Negotiations
 27 | Disable SCSI Parity
 29 | Disable Unit Attention
 31 | Customizing

 50/68 Pin Model Differential
 ----------------------------
 Pin| Description
 ---+---------------------------------------------------------
 01 | Bit 3 (MSB) 68-pin models only             --+
 03 | Bit 2                                      --+   Address
 05 | Bit 1                                      --+   Jumpers
 07 | Bit 0 (LSB)                                --+
 09 | Blank Polarity
 10 | Unused
 11 | Auto Start
 13 | +5V*
 14 | Unused*
 15 | -Master Sync
 16 | -Slave Sync
 17 | External Activity LED
 18 | +5V
 19 | Write Protect
 21 | Auto Start Delay
 23 | Option Block Mode
 25 | Disable T.I. Sync Negotiations
 27 | Disable SCSI Parity
 29 | Disable Unit Attention
 31 | Customizing

 * Pin 13 is Enable Narrow Mode on 80Pin SCA and 68Pin differential
   Pin 14 is Ground on 80Pin SCA and 68Pin differential

NOTE
Pins 2, 4, 6, 8, 12, 20, 22, 24, 26, 28, 30 and 32 are Ground.

 68Pin Auxiliary Connector
 -------------------------
   +----------------- +5V
   |  +-------------- Enable Active Termination
   |  |  +----------- SCSI ID 3
   |  |  |  +-------- SCSI ID 2
   |  |  |  |  +----- SCSI ID 1
   |  |  |  |  |  +-- SCSI ID 0
  ++-++-++-++-++-++-+
  |11|09|07|05|03|01|
  +--+--+--+--+--+--+
  |12|10|08|06|04|02|
  ++-++-++-++-++-++-+
   |  |  |  |  |  +-- Unused
   |  |  |  |  +----- Auto Spin Start
   |  |  |  +-------- Slave Sync
   |  |  +----------- External Activity LED
   |  +-------------- Ground
   +----------------- Write Protect

The 68Pin models contain an Auxiliary connector that replicates some
of the functions contained in the Front Option Jumper Block. The
Auxiliary connector signal definitions conforms to the SCSI document
SFF-8009 Rev. 2 with the following exceptions:

1. EXTERNAL FAULT (XTFALT-) is not supported on pin 2.

 2. AUTO SPIN START was chosen as the vendor unique'signal assignment
    (on pin 4). (This signal is an input to the drive. The SCSI spec
    (SCSI SFF-8009) specifies this pin as an output.) This signal
    should be useful for those applications that want to auto-start
    the drive based on location dependent SCSI ID.
    This pin should be handled in one of the following ways:
    a. tied to ground (auto spin start enabled)
    b. allowed to float (no connection)
    c. drive with an open collector driver (>1mA sink capability)

 50-Pin SCSI ID
 --------------
   +----------+-----------------------+
   | SCSI ID  | MSB             LSB   |
   |          | Bit 2 | Bit 1 | Bit 0 |
   +----------+-------+-------+-------+
   |    0     | OPEN  | OPEN  | OPEN  |
   +----------+-------+-------+-------+
   |    1     | OPEN  | OPEN  | CLOSED|
   +----------+-------+-------+-------+
   |    2     | OPEN  | CLOSED| OPEN  |
   +----------+-------+-------+-------+
   |    3     | OPEN  | CLOSED| CLOSED|
   +----------+-------+-------+-------+
   |    4     | CLOSED| OPEN  | OPEN  |
   +----------+-------+-------+-------+
   |    5     | CLOSED| OPEN  | CLOSED|
   +----------+-------+-------+-------+
   |    6     | CLOSED| CLOSED| OPEN  |
   +----------+-------+-------+-------+
   |    7     | CLOSED| CLOSED| CLOSED|
   +----------+-------+-------+-------+

 68-Pin SCSI ID
 --------------
   +----------+-------------------------------+
   | SCSI ID  |       Jumper Location         |
   |          |             PINS              |
   |          | Bit 3 | Bit 2 | Bit 1 | Bit 0 |
   +----------+-------+-------+-------+-------+
   |    0     | OPEN  | OPEN  | OPEN  | OPEN  |
   +----------+-------+-------+-------+-------+
   |    1     | OPEN  | OPEN  | OPEN  | CLOSED|
   +----------+-------+-------+-------+-------+
   |    2     | OPEN  | OPEN  | CLOSED| OPEN  |
   +----------+-------+-------+-------+-------+
   |    3     | OPEN  | OPEN  | CLOSED| CLOSED|
   +----------+-------+-------+-------+-------+
   |    4     | OPEN  | CLOSED| OPEN  | OPEN  |
   +----------+-------+-------+-------+-------+
   |    5     | OPEN  | CLOSED| OPEN  | CLOSED|
   +----------+-------+-------+-------+-------+
   |    6     | OPEN  | CLOSED| CLOSED| OPEN  |
   +----------+-------+-------+-------+-------+
   |    7     | OPEN  | CLOSED| CLOSED| CLOSED|
   +----------+-------+-------+-------+-------+
   |    8     | CLOSED| OPEN  | OPEN  | OPEN  |
   +----------+-------+-------+-------+-------+
   |    9     | CLOSED| OPEN  | OPEN  | CLOSED|
   +----------+-------+-------+-------+-------+
   |   10     | CLOSED| OPEN  | CLOSED| OPEN  |
   +----------+-------+-------+-------+-------+
   |   11     | CLOSED| OPEN  | CLOSED| CLOSED|
   +----------+-------+-------+-------+-------+
   |   12     | CLOSED| CLOSED| OPEN  | OPEN  |
   +----------+-------+-------+-------+-------+
   |   13     | CLOSED| CLOSED| OPEN  | CLOSED|
   +----------+-------+-------+-------+-------+
   |   14     | CLOSED| CLOSED| CLOSED| OPEN  |
   +----------+-------+-------+-------+-------+
   |   15     | CLOSED| CLOSED| CLOSED| CLOSED|
   +----------+-------+-------+-------+-------+

Auto Start (& Delay) Pins
-------------------------
The Auto Start and Auto Start Delay pins control when and how the
drive can spin up and come ready. When configured for Auto-Startup,
the motor spins up after power is applied without the need of a SCSI
Start Unit command. For no Auto-Start, a SCSI Start Unit command is
required to make the drive spin and be ready for media access
operations. When in Auto-Start mode, the drive will delay it's start
time by a period of time multiplied by it's own SCSI address.

 Pins (50 and 68 interface pin models)
   +----------+----------+----------+-----+
   |Auto Start|Auto Start|Auto-Start|Delay|
   |Delay     |          |Mode ?    |(sec)|
   +----------+----------+----------+-----+
   |OPEN      |OPEN      |NO        | NA  |
   +----------+----------+----------+-----+
   |OPEN      |CLOSED    |YES       |  0  |
   +----------+----------+----------+-----+
   |CLOSED    |OPEN      |YES       | 10  |
   +----------+----------+----------+-----+
   |CLOSED    |CLOSED    |YES       |  4  |
   +----------+----------+----------+-----+
 Auto-Startup Modes selectable by Auto-Start/Delay Pin Combinations

 Pins (80 interface pin models)
   +----------+----------+----------+-----+
   |Auto Start|Auto Start|Auto-Start|Delay|
   |Delay     |          |Mode ?    |(sec)|
   +----------+----------+----------+-----+
   |OPEN      |OPEN      |YES       |  0  |
   +----------+----------+----------+-----+
   |OPEN      |CLOSED    |NO        | N/A |
   +----------+----------+----------+-----+
   |CLOSED    |OPEN      |YES       | 10  |
   +----------+----------+----------+-----+
   |CLOSED    |CLOSED    |NO        | N/A |
   +----------+----------+----------+-----+
 Auto-Startup Modes selectable by Auto-Start/Delay Pin Combinations

 External Activity (LED) Pins
 ----------------------------
 The LED pins can be used to drive an external Light Emitting Diode.
 Up to 33 mA (  5%) of TTL level LED drive capability is provided.
 Current limiting for the LED is provided on the electronic card. The
 LED Anode may be tied to the +5V source provided on pin 18 of the
 Front Option Jumper block, pin 11 of the Auxiliary connector on the
 68-pin. Unitized connector or the +5V power source provided on the
 80-pin SCA model. The LED cathode is then connected to the EXTERNAL
 ACTIVITY Pin to complete the circuit.

NOTE
This set of pins can be used to drive an LED located in a bezel
connected to the front of the drive or to an external LED in systems
where the front of the drive can not be easily seen.

NOTE
68/80 pin SCSI models have two sets of pins, a set on the front and a
set on the back, that are connected to the same LED driver circuit.
The combined drive capability is stated above.

Write Protect Pins
------------------
If the Write Protect pin is jumpered to ground the drive will
prohibit SCSI commands that alter the customer data area portion of
the media from being performed. The state of this pin is monitored on
a per command basis.

Disable T.I.Sync. Negotiation Pins
----------------------------------
If a Disable Target Initiated Synchronous Negotiation pin is grounded
then an Initiator is required to start a negotiation handshake if
Synchronous and/or Wide (Double Byte) SCSI transfers are desired.

Disable SCSI Parity Pins
------------------------
Grounding this pin will disable SCSI Parity checking.

Disable Unit Attention Pins
---------------------------
Grounding this pin will disable the drive from building Unit
Attention Sense information for commands immediately following a
Power On Reset (POR) or SCSI Bus Reset. Any pending Unit Attention
conditions will also be cleared at POR or SCSI Reset times.

Customizing Pin
---------------
The customizing pin is currently reserved for future use.

Enable Narrow Mode
------------------
Jumpering pin 14 to pin 13 will cause the 68 pin Differential or the
80 pin SCA to operate in a Single Byte mode. The drive will not
negotiate for Wide (Double Byte) operation. The drive will terminate
the unused upper byte and upper byte parity on the SCSI Bus.

Enable Active Termination
-------------------------
Upon request, Single Ended 50 and 68 pin models are available with on
card SCSI bus Active terminators. For those cards having the Active
Termination feature, this function can be enabled by installing a
jumper between pins 13 and 14 of the Front Option Jumper Block or
connecting pins 9 and 11 of the Auxiliary Connector on 68 SCSI pin
models.

SCSI Bus Termination Power
--------------------------
Termination Power is optionally provided for systems that desire to
use it. In order to use the termination power, the user needs to
install a jumper between pins 01 and 02 of the TermPower Block. The
jumper should only be installed on one device, which should be the
last device on the SCSI bus (i.e. the drive that is phydically
closest to a terminator). 68 pin models can source up to 2.0 Amps of
current at 5.0 Volts ( 5%) for termination power. 50 pin models can
source up to 1.5 Amps of current at 5.0 Volts ( 5%) for termination
power.

Install

IBM DCHS-34550/39100 ULTRASTAR 2XP PRODUCT DESCRIPTION

Notes On Installation
=====================

Installation direction
----------------------

     horizontally                           vertically
   +-----------------+             +--+                       +--+
   |                 |             |  +-----+           +-----+  |
   |                 |             |  |     |           |     |  |
 +-+-----------------+-+           |  |     |           |     |  |
 +---------------------+           |  |     |           |     |  |
                                   |  |     |           |     |  |
                                   |  |     |           |     |  |
 +---------------------+           |  +-----+           +-----+  |
 +-+-----------------+-+           +--+                       +--+
   |                 |
   |                 |
   +-----------------+

The drive will operate in all axis (6 directions).

DC Power
--------
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.

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 etc 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.

50 Pin SCSI Signal Connector
----------------------------
50 pin models use an AMP PN 84160-1 connector. The connector is
compatible with the ANSI SCSI 'A' connector specifications. It is
limited to 8 bit data transfers only.

68 Pin SCSI Signal Connector
----------------------------
68 pin models use an AMP connector (PN 786963-1) that is compatible
with the ANSI SCSI 'P' connector specifications. It can transfer
data in both 8 bit (narrow) and 16 bit (wide) modes. Both
single-ended and differential versions are supported.

The differential 68 pin models are electrically compatible with
differential 50 pin models and other 50 pin differential SCSI
products and therefore can coexist on the same bus. In order to do
so, the differences in connector types would need to be accounted
for in the cable. Connecting 68 and 50 pin single-ended models to
the same bus can also coexist. Differential and single-ended models
do not work connected to the same bus.

80 Pin (Single Connector Attachment) Connector
----------------------------------------------
80 pin SCA-2 models use an AMP connector (PN 5-917593-9) that is
compatible with the specification of: 'Single Connector Attachment
for Small SCSI Disk Drives' SFF 8046. It can transfer data in both 8
bit (Narrow) and 16 bit (wide) modes.

Note: The 'SCA-2' connector is not mechanically compatible with the
50 pin 'A' connector or Hot plug/unplug support the 68 pin 'P'
connector as defined in the ANSI SCSI standard. This connector
is intended for direct backplane attachment and is not intended
to be cable attached to the bus.

SCSI Bus Cable
--------------
Single-ended models permit cable lengths of up to 6 metres (19.68
feet). It should be noted however that users who plan to use "Fast"
data transfers with single-ended models should follow all of the
ANSI SCSI guidelines for single-ended "Fast" operations. This may
include a cable length of less than 6 metres. SCSI 3 Fast 20 models
can be cable connected to a 3 metre (9.8 feet) cable when a maximum
of 4 devices are attached, and a 1.5 metre (4.9 feet) cable with up
to 8 devices attached. SCA-2 connector models are not designed for
direct cable attachment due to the combination of power and SCSI
bus signals. "Fast & Fast 20" data transfers with SCA models
should follow all of the ANSI SCSI guidelines.

Differential models permit cable lengths of up to 25 metres
(82.02 feet). Cables must meet the requirements for differential
cables as set forth in the ANSI SCSI standard under "Cable
Requirements -Differential Cable". The ANSI SCSI standard
states that any stub from main cable must not exceed 0.1 metres for
single-ended cables and 0.2 metres for differential cables.

Ultrastar 2XP has a maximum internal stub length of 0.05 metres on
all 'single-ended' SCSI signals, and 0.1 metres on all 'differential'
SCSI signals. To remain compliant with the standard the SCSI bus
cable must not add more than 0.05 metres additional stub length to
any of the single-ended SCSI signals or 0.1 metres to any
differential SCSI signals.

80 pin SCA models do not have internal SCSI bus terminators.

Differential models do not have internal SCSI bus terminators.

Note: A Meritec model 940900-4 or a DataMate DM5000-5068-11 can be
used to connect a 68 pin connector to a 50 pin connector. The drive
will now perform 8 bit transfers.

50 Pin Model 68 Pin Model
Terminators Terminators
Data Mate Data Mate
DM550-05-0 DM2050-01-68D
DM1050-02-0

50 Pin Model 68 Pin Model
Terminators Terminators
Data Mate Data Mate
DM2000-02-R DM2050-02-68S D
M500-06-R DM2050-02-68R

Clearances
----------
For proper cooling it is suggested that a clearance of 7 mm be
provided under the drive and on top of the drive.

Features

IBM DCHS-34550/39100 ULTRASTAR 2XP PRODUCT DESCRIPTION

IBM OEM has introduced a new range of disk drives intended for
advanced-storage applications which demand fast access to large
amounts of data. The drives spin at 7200 rpm have an EPRML channel,
embedded sector servo, S.M.A.R.T and media data rate 10.3-15.4MB/s.

APPLICATIONS
- Technical/commercial workstations

- Network servers

- Mass storage arrays

- High end personal computers

- Large scale imaging and graphics

- Video servers

- Video editing Applications

Models
SCSI 2 FAST (50 Pin Single-Ended)
SCSI 2 FAST (68 Pin Single-Ended and Differential)
SCSI 3 FAST 20 (68 Pin Single-Ended and Differential)
SCSI 3 FAST 20 (80 Pin Single-Ended SCA-2)

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 etc 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.

Clearances
----------
For proper cooling it is suggested that a clearance of 7 mm be
provided under the drive and on top of the drive.

Operating Shock
---------------
No permanent damage will occur to the drive when subjected to a 10 G
half sine wave shock pulse of 11 milliseconds duration. The shock
pulses are applied in each of three mutually perpendicular axis,
one axis at a time.

Nonoperating Shock
------------------
No damage will occur if the unpackaged drive is subjected to a
square wave shock less than 35 Gs applied to all three axis for
a period of 20 milliseconds, one direction at a time.

Additionally, no damage will occur if the unpackaged drive is not
subjected to an 11 millisecond half sine wave shock greater than
70 Gs applied to all three axis, one direction at a time.













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