
M 2 6 1 2 T    FUJITSU
NO MORE PRODUCED                                      Native|  Translation
                                                      ------+-----+-----+-----
Form                 3.5"/HH               Cylinders    1334|  667|     |
Capacity form/unform    90/      MB        Heads           4|    8|     |
Seek time   / track  25.0/10.0 ms          Sector/track   33|   33|     |
Controller           IDE / AT              Precompensation
Cache/Buffer            64 KB LOOK-AHEAD   Landing Zone
Data transfer rate    1.250 MB/S int       Bytes/Sector      512
                      7.400 MB/S ext
Recording method     RLL 1/7                        operating  | non-operating
                                                  -------------+--------------
Supply voltage     5/12 V       Temperature *C         5 45    |    -40 60
Power: sleep              W     Humidity     %        20 80    |      5 95
       standby            W     Altitude    km    -0.060  3.000|        12.000
       idle           7.8 W     Shock        g         5       |     50
       seek               W     Rotation   RPM      3490
       read/write         W     Acoustic   dBA        43
       spin-up            W     ECC        Bit   32,56
                                MTBF         h      50000
                                Warranty Month
Lift/Lock/Park     YES          Certificates


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FUJITSU  M2612T/M2613T/M2614T  OEM MANUAL 41FH5041E-02

  +---------------------------------------------------------+
  |                                                         |XX Power
  |                                                         |XX CN6
  |                                                         |
  |                                                  CNH-1  |XX
  |                                                12--+    |XX
  |                                                 |  |    |XX
  |                                                 |  |    |XX
  |                                                 |  |    |XX
  |                                                 |  |    |XX
  |                                                 |  |    |XX
  |                                                 |  |    |XX
  |                                                 1--+    |XX
  |                    CNH-3 (Option)          9--+         |XX
  |                  1-------6                 |  |         |xx
  |                  +-------+                 |  |CNH-2    |XX
  |                                            |  |         |XX Power
  |                                            1--+         |XX CN2
  +---------------------------------------------------------+



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                      J   U   M   P   E   R   S
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FUJITSU  M2612T/M2613T/M2614T  OEM MANUAL 41FH5041E-02

 Switches locations
 ==================

 x = Jumpers are set from factory


 CNH-1  Slave present mode / Active mode
 ---------------------------------------
 x       1- 2  CLOSE  Active mode
         2- 3  OPEN

         1- 2  OPEN   Slave present mode
         2- 3  CLOSE

 This operation is to set the slave present or active mode of M261xT.


 CNH-1  I/O channel ready (IOCHRDY)
 ----------------------------------
         4- 5  CLOSE  Pin 27 = IOCHRDY
         5- 6  OPEN

         4- 5  OPEN   PIN 27 = Reserved
 x       5- 6  CLOSE

 When the data transfer rate of the host becomes very high (near
 7.4MB/s or more), the M261xT must provide wait state to synchronize
 data transfer. This setting is used to output IOCHRDY to pin 27 of
 the host interface.


 CNH-1  1-drive/2-drive system
 -----------------------------
         7- 8  CLOSE  2-drive system
         8- 9  OPEN

         7- 8  OPEN   1-drive system
 x       8- 9  CLOSE


 CNH-1  IRQ14/RSVD switch
 ------------------------
        10-11  CLOSE  After exchange Pin 29 = IRQ14
        11-12  OPEN                  Pin 31 = Reserved

        10-11  OPEN   Normal status  Pin 29 = Reserved
 x      11-12  CLOSE                 Pin 31 = IRQ14

 This operation is to exchange settings of pin 29 and 31 to eliminate
 cross talk influence in the host interface cable.


 CNH-2  MASTER/SLAVE drive system
 --------------------------------
         1- 2  CLOSE  SLAVE drive
         4- 5  OPEN

         1- 2  OPEN   MASTER drive
 x       4- 5  CLOSE


 CNH-2  ECC bytes
 ----------------
         7- 8  CLOSE  4 bytes
         8- 9  OPEN

         7- 8  OPEN   7 bytes
 x       8- 9  CLOSE

 In 4Byte ECC mode, the READ LONG/WRITE LONG command can be executed
 successfully only under the following sequence:

                  READ LONG -> WRITE LONG


 CNH-3  Write protect (provided as an option)
 --------------------------------------------
         1- 2  CLOSE  Write protected
         2- 3  OPEN

         1- 2  OPEN   Write enabled
 x       2- 3  CLOSE


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FUJITSU  M2611T/M2612T/M2613T/M2614T  OEM MANUAL 41FH5041E-02

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

 Installation direction
 ----------------------
     horizontally                          vertically
    +---------------+                  +--+                  +--+
    |               |                  |  +-----+      +-----+  |
    |               |                  |  |     |      |     |  |
 +--+---------------+---+              |  |     |      |     |  |
 +----------------------+              |  |     |      |     |  |
                                       |  |     |      |     |  |
      X           X                    |  |     |      |     |  |
 +------X-------X-------+              |  |     |      |     |  |
 +--+-----X---X-----+---+              |  +-----+      +-----+  |
    |      X X      |                  +--+                  +--+
    |    X    X     |
    +--X--------X---+
     X            X

 If the drive is installed in any of the above three installation
 directions, the level deviation must not exceed 5*.

 Never install PCA to the top!


 Ambient temperature
 -------------------
 The ambient temperature is measured at a point 3cm from the drive
 when it is installed in a cabinet.
 Set the air flow so that this temperature does not exceed 45*C.
 The standard base surface temperature is 58*C or less. Air circula-
 ting in the cabinet should cool the PCA side especially.


 Cable requirements
 ------------------
 The cable of twisted pairs and neighboring line separated individu-
 ally is not allowed to use for the host interface cable. It is be-
 cause cross talk is generated when the data transfer rate becomes
 very high.

 Cable length: 0.5m Max.



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                      F   E   A   T   U   R   E  S
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FUJITSU  M2611T/M2612T/M2613T/M2614T  OEM MANUAL 41FH5041E-02

 Buffer
 ======
 The M261xT supports a look-ahead cache to increase system throughput.
 The M261xT uses 56KB of the cache to read and 6KB to write and a 2KB
 area to download sequencer programs.


 Data transfer rate
 ==================
 A maximum transfer rate of 7.4MB/s is accomplished with a 30MHz clock
 signal and high-speed buffer management. When the data transfer rate
 becomes near 7.4MB/s or more, the host must recieve IOCHRDY signal
 and maintain the transfer synchronisation by setting a wait state.


 Power save mode
 ===============
 When the M261xT will not be operated for a long time, power consump-
 tion can be reduced by using the power save mode.

 The M261xT supports two power modes which are selectable by the POWER
 command: idle mode and power save mode. In the power save mode, power
 is supplied only to the controller circuit, the spindle motor circuit
 and the drive control IC. Power to the other components is shut off
 by the power FET. Thus low power consumption is accomplished. In this
 mode, the spindle keeps rotation for hot restart.


 Actuator lock mechanism
 =======================
 When the M261xT is not in service, the actuator lock mechanism locks
 the head positioning arm to protect it.


 Start and stop time
 ===================
 Start time (time from when power is turned on until the IDD is ready)
 is 15 seconds or less, and stop time (time to completely stop when
 power is turned off) is 25 seconds or less.


 Power on/off sequence
 =====================
 The +5V and +12V power supplies are monitored by the voltage check
 circuit. The circuit allows a write current to flow only when the
 both voltages are normal. Accordingly, no power sequence is required.
 This is for protection of the content of the medium.


 AC line noise
 =============
 To eliminate AC line noise, a noise filter of the specifications
 given below should be incorporated in the AC input terminal of the
 drive power supply.
 Attenuation characteristics:  40 dB or greater at 10MHz
 Circuit configuration:        T type


 Mean Time Between Failures (MTBF)
 =================================
 The MTBF is defined as follows:

                            Operating time
          MTBF = -----------------------------------------
                 Number of equipment failures in the field

 Operating time is the total time duration during which the power is
 on, excluding preventive maintenance.
 Failure of the equipment means a failure that requires repair, ad-
 justment, or replacement, excluding preventive maintenance. Errors
 by the operator, failures due to power failures, controller faults,
 cable faults, bad environmental conditions, or other failures not
 caused by the equipment itself are not included.

 The IDD is designed for an MTBF of 50.000 hours.


 Mean Time To Repair (MTTR)
 ==========================
 MTTR is the average time taken by a well-trained service engineer to
 diagnose and repair a unit malfunction. The IDD is designed for a
 MTTR of 30 minutes or less.


 Service life
 ============
 Overhaul of the drive is not required for the first five years.


 Data protection against power failure
 =====================================
 Integrity of the data on the disk is guaranteed against all forms of
 abnormal DC power except a power failure during writing.


 Media Defect
 ============
 When a physical track contains two ore more bad sectors, all sectors
 in the track are given BAD flags in formatting before the M261xT is
 shipped.
 As regards media defect, it defines with number of bad tracks as
 follows. (provided that CYL0, HD0 is defect free)

 Number of bad tracks per drive:  max. 12 M2611T
                                  max. 24 M2612T
                                  max. 36 M2613T
                                  max. 48 M2614T


 Drive BIOS specification
 ========================
 The BIOS specification of the host must meet that of the M261xT in
 the number of cylinders, number of heads and sectors per track in
 order to make best use of the IDD. The BIOS specification of the IDD
 is specified by SET PARAMETERS. The IDD can be used if an appropriate
 BIOS specification from the existing drive type table in the host is
 selected within the capacity of the IDD. In this case the IDD can be
 operated within the limits of the capacity which is selected by the
 drive type.



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FUJITSU => GDT

 Tips & Hints about ICP controllers and other peripherals
 ========================================================

 Tagged queues and Fujitsu M 26xx harddisks
 ------------------------------------------
 Fujitsu Harddisks of the M26XX series do not support the SCSI-II
 feature tagged queues. You should disable this feature in the
 initialize disks menue of the GDTSetup program. An inquiry command
 shows, that the harddisk supports tagged queues (this is why you can
 enable it in the GDTSetup) but this is not true as stated by Fujitsu
 Germany.


