
D F H C - 3 2 1 6 0   ( C 2 C / B )    IBM
                                                      Native|  Translation
                                                      ------+-----+-----+-----
Form                 3.5"/SLIMLINE         Cylinders        |     |     |
Capacity form/unform  2255/      MB        Heads            |     |     |
Seek time   / track   7.5/     ms          Sector/track     |     |     |
Controller           SERIAL SSA FIBRE OPT  Precompensation
Cache/Buffer           512 KB SEGMENTED    Landing Zone
Data transfer rate    7.100 MB/S int       Bytes/Sector      512
                     80.000 MB/S ext SSA
Recording method                                    operating  | non-operating
                                                  -------------+--------------
Supply voltage     -            Temperature *C                 |
Power: sleep              W     Humidity     %                 |
       standby            W     Altitude    km                 |
       idle               W     Shock        g                 |
       seek               W     Rotation   RPM      7200
       read/write         W     Acoustic   dBA
       spin-up            W     ECC        Bit
                                MTBF         h    1000000
                                Warranty Month
Lift/Lock/Park     YES          Certificates                                  

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                        L   A   Y   O   U   T
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IBM      DFHC-CXC/B  ULTRASTAR XP SSA  INSTALLATION NOTES




 +-D32------------------------------------------------------------D1-+
 ++ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ++
  | * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * |
 X| * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * |X
  | * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * |
  +A32------------------------------------------------------------A1+

       (Electrical connectors (rear and top view) - CxC models)










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                      J   U   M   P   E   R   S
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IBM      DFHC-CXC/B ULTRASTAR XP SSA  NOTES ON INSTALLATION

 Option pins and indicators
 --------------------------
 Ultrastar XP SSA drives contain option pins and/or indicators used to
 sense and report fault conditions and to enable certain features of
 the drive. The existence and defintion of these pins are model
 dependent.


 +-D32------------------------------------------------------------D1-+
 ++ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ++
  | * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * |
 X| * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * |X
  | * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * |
  +A32------------------------------------------------------------A1+

       (Electrical connectors (rear and top view) - CxC models)


 Unitized Connector
 ------------------

        1                       -MFG
     Programmable  GND          Test
 +--+        +5V  (long) -SYNC  Mode   +--+
 |  +---9-----7-----5-----3------1-----+  |
 |                                        |     8 = -Device Fault
 |  +--10-----8-----6-----4------2-----+  |     4 = -Write Protect
 +--+              -Device     -Auto Start+
   Programmable    Activity
        2


           (long)
  +-------+GND  +3.3V                                +------
  +----+  |15    13    11    9     7    5    3    1  |  +---
       |  +------------------------------------------+  |
       |  +------------------------------------------+  |
       +--+16    14    12   10     8    6    4    2  +--+
           GND  +3.3V
           (long)

 11 = -Power Fail
 12 = Gnd (long)
 09 = +5V
 10 = Gnd (long)
 07 = Gnd (long)
 08 = Gnd (long)
 05 = +12V
 06 = +12V
 03 = Gnd (long)
 04 = Gnd (long)
 01 = +12V Charge (long)
 02 = +5V Charge (long)

 The unitized connector is located on the left side of the top view
 (bottom drawing). The jumper connector is located on the right side
 of the top view (bottom drawing). This jumper connector is referred
 to  as front jumper because of its front location. It is reserved for
 IBM engineering use only.
 Manufacturing test mode (option port pin 1)
 -------------------------------------------
 A low active input pin, that when active (pulled below 0.8V) makes
 pin 2, 3, 4, 6, 8, 9 and 10 available to be redefined. Pins 5 and 7
 must remain ground and +5V respectively. One possible purpose for
 this pin is to allow a manufacturing tester to redefine the option
 pins to what ever function it desires, while allowing the shipped
 product to return to the standard product definitions in the customer
 environment. All models (CxC and CxB) reserve this pin but it is not
 connected to any internal logic.


 Auto start pin (option port pin 2)
 ----------------------------------
 A low active input pin, that when active (pulled below 0.8V) on CxC
 model causes the drive motor to spin up and become ready for media
 access operations after power is applied without the need to receive
 a start/stop unit command. When inactive (pulled above 2.0V), the
 drive motor shall not spin up until after the receipt of a start/stop
 unit command. The signal is set to be sampled by the device at power
 on, or hard reset or soft reset conditions.

 This pin is not accesible on CxB models.


 Sync pin (option port pin 3)
 ----------------------------
 Th esync input/output pin on CxC model can be used for synchronizing
 among devices. The synchronization is achieved by having one device
 use this pin as an output to transmit one sync character one per
 its spindle revolution. The other node may use this pin as an input
 and synchronize their spindle revolution position to match the sync
 signal. The SSA network provide sync character over SSA link, but
 this option pin allows synchronization across multiple SSA networks,
 or allow tighter latency of the sync pulse.

 The width, period, and tolerance of the negative active sync pulse is
 manufacturer dependent, and thus synchronization across different
 manufacturers or even different product lines of the same
 manufacturer is not guaranteed. The sync pin usage is controlled by
 mode pages within the mode select command.

 This pin is not accessible on CxB model.


 Write protect pin
 -----------------
 The write protect pin is a low active pin, thatz when active (pulled
 below 0.8V) the drive will prohibit 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.

 This pin is not accessible on CxB model.


 Ground long (option port pin 5)
 -------------------------------
 The ground long output pin on CxC models can be used to drive an
 external light emitting diode. CxB models have an integrated green
 LED.

 CxC models provide up to 24 mA of TTL level LED sink current
 capability. Current limiting for the LED is provided on the
 electronics card. The anode may be tied to the +5V power source
 (provided on the unitized connector). The LED cathode is then
 connected to the device activity pin to complete the circuit.


 +5V (option port pin 7)
 -----------------------
 The +5V output pin on CxC and CxB models shall supply up to 1.0Amp
 of current limited +5V ( 10%), as long as power is supplied to the
 device.


 Device fault pin/indicator (option port pin 8)
 ----------------------------------------------
 The device fault pin on CxC models can be used to drive an external
 light emitting diode. CxB models have an integrated amber LED.

 CxC models provide up to 24 mA of TTL level LED sink current
 capability.

 Current limiting for the LED is provided on the electronics card. The
 anode may be tied to the +5V power source (provided on the unitized
 connector). The LED cathode is then connected to the device fault pin
 to complete the circuit.


 Programmable pin 1 (option port pin 9)
 --------------------------------------
 This pin can be used by a manufacturer for whatever purposes it
 desires within the specified definition, electrical characteristic
 and the availability of microcode. This pin is completely controlled
 by microcode.

 This pin is not accessible externally on CxB models.


 Programmable pin 2 (option port pin 10)
 ---------------------------------------
 This pin is reserved and is not connected to any internal logic.

 This pin is not accessible externally on CxB models.


 Early power off warning or power fail (power port pin 11)
 ---------------------------------------------------------
 The early power off warning input pin on CxC models can be used to
 indicate to the drive that a power loss will occur by pulling this
 signal above a 2.0 volt threshold. The input must provide a minimum
 of 6 milliseconds warning before power falls below operating
 specifications in order for the drive to stop its activities and
 handle the fault.

 This pin is not accessible on CxB models.


 12V charge and 5V charge (power port pin 1 and 2)
 -------------------------------------------------
 These pins are longer than the others. They help to reduce current
 spikes during hot plug. Each pin requires a resistor (not in the
 drive) in series between the power source and the drive connector.
 This allows for more controlled current draw as prior to other
 voltage pins. It is up to the subsystem to determine the proper
 resistance to add to these pins to meet the  10% voltage drop
 limitations and the current  draw limitation of the connector.

 These pins are not accessible on CxB models.


 Front jumper connector
 ----------------------
 All models contain a jumper block that is reserved for IBM
 engineering use only.


 SSA unitized connector
 ----------------------
 Electrical connections for CxC models are provided by a single
 connector mounted on the rear of the drive. Connections are provided
 for two SSA port, fault sensors and indicators, option customization
 and power.



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                      I   N   S   T   A   L   L
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IBM      DFHC  ULTRASTAR XP SS  NOTES ON INSTALLATION

 Notes on installation
 =====================

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

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

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


 Carrier connector
 -----------------
 Electrical connections for CxB models are provided by a single 128
 pin connector on the rear of the drive. Connections are provided for
 two SSA ports, fault sensors and indicators, and power. The
 receptacle used is a 4 x 32 female contact, BERG HPC connector, IBM
 part number 99F9429.


 Clearances
 ----------
 A minimum of 2 mm should be given to the bottom surface except for a
 10 mm diameter area around the bottom mounting holes. For proper
 cooling it is suggested that a clearance of 6 mm be provided under
 the drive and on top of the drive.

 There should be 7 mm of clearance between drives that are mounted
 with their top sides facing each other.


 Mounting CxB
 ------------
 The carrier is designed to be plugged into an auto-docking assembly.
 The auto-docking assembly contains an electrical receptacle that
 provides connections for DC power, SSA interface signals, and fault
 sensing and reporting signals. The carrier design allows for
 positive retention of the carrier in all axes when plugged into the
 auto-docing assembly. In addition, the carrier retention provides a
 force to bottom out the carrier auto-docking connector into the
 auto-docking assembly and maintain a force of 5 pounds minimum, 40
 pounds maximum.

 The mating connector should contain two guide pins to align the
 carrier receptacle during seating. These guide pins are BERG part
 number 77693-014 (IBM part number 72G0343) or AMP equivalent part
 number 1-532808-1 (IBM part number 19G6789). The guide pin length
 should be 26.04mm while the thread depth depends upon the thickness
 of the circuit board the connector is mounted to. The guide pins
 should be tied to the docking assembly frame ground.

 NOTE
 The connector pins must be lubricated to insure seating of the
 carrier into the auto-docking assembly. The type of lubricant
 recommended is Stauffer CL-920 or equivalent.

 The maximum allowable penetration of the mounting screws is 3.8 mm.

 The torque applied to the mounting screws must be 0.8 newton meters
   0.1 Newton meters.


 Grounding requirements of the disk enclosure
 ---------------------------------------------
 The disk enclosure is at power supply ground potential. It is
 allowable for the user mounting scheme to common the disk enclosure
 to frame ground potential or leave it isolated from frame ground.

 The drive's mounting frame must be within   150 millivolts of the
 drive's power supply ground. At no time should more than 35 milliamps
 of current (0 to 100 MHz) be injected into the disk enclosure.



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                      F   E   A   T   U   R   E  S
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IBM      SSA

 SSA
 ---
 Serial Storage Architecture (SSA) is a powerful high-speed serial
 interface designed to connect high-capacity data storage devices,
 subsystems, servers and workstations. Designed with the future in
 mind, SSA facilitates migration from current SCSI equipment and will
 accommodate implementation of future configurations, including the
 use of fiber-optic connections. IBM offers SSA interfaces on its
 3.5-inch line of Ultrastar XP and Ultrastar 2XP high-performance
 drives.

 SSA reduces interface costs. No external drivers or receivers
 required; these functions are embedded within a CMOS protocol chip.
 Only four signal wires are required, compared to 68 for the closest
 SCSI equivalent. SSA interface require no address switches and no
 discrete terminators.

 SSA architecture operates at two protocol levels. The lower level,
 SSA-PH, defines the electrical characteristics, coding scheme and
 method of information transmission. The upper level maps SCSI
 commands into a form suitable for serial transmission. As a result,
 devices now using SCSI-2 can be upgraded to SSA with minimal code
 changes.

 SSA offers superior performance over the interfaces commonly used
 today. Each SSA link is full-duplex and frame multiplexed
 simultaneously, resulting in data rates in the 20MB/sec range in each
 direction, with total throughput of 80MB/sec at each node. As many
 as 127 devices can be connected per loop, with "hot plugging"
 supported.

 The combination of low power, fewer components and fault isolation
 makes SSA highly reliable. Each node performs extensive error
 checkig, and if errors occur, SSA provides transparent frame
 recovery. When SSA devices are configured in a loop, alternate paths
 to each device ensure that there is no single point of failure.


