DISK DRIVE SPECIFICATIONS

     MODEL M2266HA                   Part Number B03B-4945-863A

        INTERFACE SCSI Differential  RECORDING CODE 1/7 RLL          

        CAPACITY----Unformatted 1266 Mb.    Formatted 1079 Mb.
                    Per Track   652.8 Kb.   Sectors/track 85 @ 512B/S  

        NUMBER OF---Heads 15                      Servo Tracks 1          
                    Cylinders 1658             

        POSITIONING TIME 
                    Track to track   4 mS. Average  14.5 mS.
                    Maximum         30 mS. 

        POSITIONING METHOD  Rotary voice coil motor                      

        SPINDLE SPEED  3600 R.P.M.           AVERAGE LATENCY  8.3 mS.

        DENSITY---Recording 46635 B.P.I.     Track 1634 T.P.I.
                  
        DATA TRANSFER RATE
                    Asynchronous  2.00 Mbytes/Sec.                      
                    Synchronous   4.80 Mbytes/Sec.                 

        BUFFER SIZE / TYPE         256 kB. FIFO Ring                       

        START TIME  20 Secs.            STOP TIME  15 Secs.

        ERROR RATES   Recoverable       10 per 10**11      
                      Non-recoverable   10 per 10**15      
                      Seek              10 per 10**7       


                              PHYSICAL SPECIFICATIONS

        DIMENSIONS.  5.7in X 3.3in X 8.0in(WHD)      WEIGHT. 7.7lb       

        POWER REQUIREMENTS.  +5V @ 1.6A, +12V @ 1.9A, 5.0A(Peak)         
                     Consumption. 31 Watts.

                                OPERATING          NON-OPERATING     
        Temperature  - - - -|    5 to 45 C      |  -40 to 60 C       |
        Humidity - - - - - -|   20 to 80%RH     |    5 to 95%RH      |
        Altitude - - - - - -|    0 to 3000m     |    0 to 12000m     |
        Vibration  - - - - -| less than 0.2G    | less than 0.5G     |
        Shock  - - - - - - -| less than 2.0G    | less than 20G      |
        Temperature Gradient|    15deg/hr       |                    |

                                  RELIABILITY DATA

             Mean time before failure      200,000 Hrs.
             Mean time to repair               0.5 Hrs.
             Component life                      5 Yrs.