
M 2 6 1 6 E T    FUJITSU
NO MORE PRODUCED                                      Native|  Translation
                                                      ------+-----+-----+-----
Form                 3.5"/SLIMLINE         Cylinders    1542|  771|     |
Capacity form/unform   104/      MB        Heads           4|    8|     |
Seek time   / track  20.0/ 8.0 ms          Sector/track   33|   33|     |
Controller           IDE / AT              Precompensation 65535
Cache/Buffer            56 KB FIFO BUFFER  Landing Zone     1541
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    |    -45 60
Power: sleep              W     Humidity     %        20 80    |      5 95
       standby        2.5 W     Altitude    km    -0.060  3.000|        12.000
       idle               W     Shock        g         5       |     50
       seek           5.5 W     Rotation   RPM      3490
       read/write     5.5 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  M2616ET  OEM MANUAL 41FH5061E-01

  +--------------------------------------------------------+
  |                                                        |XX CN6
  |                                                        |XX Power
  |   LED                                                  |
  |  +---+                                                 |XX I
  |  +---+                                                 |XX N
  |                                                        |XX T
  |                                                        |XX E
  |                                                        |XX R
  |                                                        |XX F
  |                                                        |XX A
  |                             6           1              |XX C
  |                             +-----------+              |XX E
  |                             +-SW1-------+              |XX
  |                             +------+                   |
  |                             +-SW2--+                   |XX
  |                             4      1                   |XX Power
  |                                                        |XX CN2
  +--------------------------------------------------------+


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FUJITSU  M2616ET  OEM MANUAL 41FH5061E-01

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

 x = Jumpers are set from factory


 SW1  IRQ14/RSVD switch
 ----------------------
       1   OFF    After exchange pin 29 = IRQ14
       2   ON                    pin 31 = RESERVED

 x     1   ON     Normal status  pin 29 = RESERVED
 x     2   OFF                   pin 31 = IRQ14

 This operation is to exchange settings of pins 29 and 31 to eliminate
 crosstalk influence in the host interface cable.


 SW1   Slave present mode/Active mode
 ------------------------------------
       3   ON   Slave present mode
       4   OFF

 x     3   OFF  Active mode
 x     4   ON

 This operation is to set the slave present or active mode. This
 setting should be set in active mode on daisy-chained connection of
 both M2616ET.


 SW2   MASTER/SLAVE
 ------------------
       1   OFF  SLAVE side of 2-drive system
       2   ON

 x     1   ON   MASTER drive
 x     2   OFF


 SW2   1-drive/2-drive
 ---------------------
       3   ON   2-drive
 x     3   OFF  1-drive


 SW2   Write-protect
 -------------------
       4   ON   Write-protected
 x     4   OFF  Write-enabled

 The write protect switch is provided as an option


 SW2   I/O channel ready (IOCHRDY) output
 ----------------------------------------
       5   ON   pin 27 = IOCHRDY
 x     5   OFF  pin 27 = RESERVED

 When the data transfer rate of the host becomes very high (near 3.7
 MW/s or more), the M2616ET must provide wait state to synchronize
 data transfer. This setting is used to output IOCHRDY to pin 27 of
 the host interface.


 SW2   ECC bytes
 ---------------
       6   ON   4 Byte
 x     6   OFF  7 Byte


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FUJITSU  M2616ET OEM MANUAL 41FH5061E-01

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

 Installation direction
 ----------------------
     horizontally                          vertically
    +---------------+                  +--+                  +--+
    |               |                  |  +-----+      +-----+  |
    |               |                  |  |     |      |     |  |
 +--+---------------+---+              |  |     |      |     |  |
 +----------------------+              |  |     |      |     |  |
                                       |  |     |      |     |  |
      X           X                    |  |     |      |     |  |
 +------X-------X-------+              |  |     |      |     |  |
 +--+-----X---X-----+---+              |  +-----+      +-----+  |
    |      XX       |                  +--+                  +--+
    |    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*.

 The PCA must be on the bottom!


 Ambient temperature
 -------------------
 The operating temperature range for the IDD in a cabinet is specified
 at a distance of 3 cm from the IDD. Design the air flow in the cabi-
 net to keep.

 The maximum ambient temperature with in 45* C.

 The air circulation in the cabinet must be designed so that the PCA
 side of the IDD is particularly cooled.


 Multi-drive connection
 ----------------------
 Up to two IDDs are connectable.

 Note: In principle, perfect operation cannot be guaranteed in case
 of daisy-chained combination (2-drive-system) of drive and other
 manufacturer's drive.


 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
 because that the location of signal lines in these cables is not
 fixed, and so the problem on the crosstalk among signal lines may
 occur.

 Cable length: 0.5m Max.


 DC power supply
 ---------------
 DC voltages of +5 V and +12 V are available. The IDD has two types
 of power connectors, the one is big type (4 pins), the other is
 small type (CN6, 3 pins).



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FUJITSU  M2616ET  OEM MANUAL 41FH5061E-01

 Media Defect
 ============
 When a physical track contains two or more bad sectors, all sectors
 in the track are given BAD flags in formatting before the drive is
 shipped. As regards media defect, it defines with number of bad
 tracks as follows. (provided that CYL0 is defect free)
 Number of bad tracks per drive: 24 Max.

 Power Save Mode
 ===============
 The drive supports two power modes which are selectable by the POWER
 command: idle mode and power save mode. In power save mode, power is
 supplied to the disk controller but not to the disk to save power.
 (In this state, the spindle keeps on revolving.) This is low power
 consumption mode.

 Drive BIOS specification
 ========================
 The PC-AT BIOS specification (parameters such as the number of cylin-
 ders, the number of heads and the number of sectors/track) is not
 always equal to the physical specification of the IDD.
 The PC-AT BIOS does not support operation in the full range of the
 physical specifications of the IDD. To make the IDD work most effi-
 ciently according to its physical specification, the logical specifi-
 cations should be converted in the controller.

 As BIOS has a limitation of number of cylinders (< 1024), a host can-
 not be operated by physical parameters. Therefore, logical/physical
 translation (emulation) is needed, a host has to use the drive by
 logical parameters. BIOS specifications are defined by "SET PARA-
 METERS" command which a host issues. A customer who can modify
 "FIXED DISK PARAMETER TABLE" in the BIOS selects parameter freely
 and can set BIOS specification. However, the parameter must be se-
 lected WITHIN THE STORAGE CAPACITY which the drive has. And it is
 possible that customer uses the drive by selecting appropriate DRIVE
 TYPE in the BIOS. In this case, the drive works in the storage ca-
 pacity which customers selected. Logical parameter which can use
 without loss of physical capacity of the drive:

                               Physical Logical
           -------------------+--------+-------+
           Number of cylinders|  1542  |  771  |
           Number of heads    |     4  |    8  |
           Sectors/track      |    33  |   33  |

 When the drive is operated by TEST PROGRAM (Bench Mark Test etc.)
 which is for measurement of the performance of the HDD, according
 to BIOS specifications, actual performance may not be measured. For
 example, in BIOS specification

           Number of cylinders| 771  |
           Number of heads    |  12  |
           Sectors/track      |  17  |
           -------------------+------+
           Total capacity     | 104MB|

 Track to track seek becomes 2 position seek. In the drive, example of
 BIOS specification that actual performance can measure and loss ca-
 pacity least is shown following. However, the result of Bench Mark
 Test etc. and the performance of the actual use are not always equal.
 BIOS specification needs to decide that result of file access depen-
 ding on systems is evaluated synthetic.

 Interleave
 ==========
 Even when receiving a non-1:1 interleaving table from the host, the
 IDD internally performs 1:1 formatting. This is because:

   interleaving is nit required as the look-ahead-cache function
   performs high speed data transfer at a place where hitting is made.

   interleaving is substantially unnecessary since formatting (e.g.
   17 sectors/track) is performed on two consective heads or cylinders



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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.


