                              ST - 238R

       UNFORMATTED CAPACITY (MB) ________________38.4
       FORMATTED CAPACITY (26 SECTORS) (MB) _____32.7
       ACTUATOR TYPE ____________________________STEPPER
       TRACKS ___________________________________2,460
       CYLINDERS ________________________________615
       HEADS ____________________________________4
       DISCS ____________________________________2
       MEDIA TYPE _______________________________OXIDE
       RECORDING METHOD _________________________RLL
       TRANSFER RATE (mbits/sec) ________________7.5
       INTERFACE ________________________________ST412
       TPI (TRACKS PER INCH) ____________________588
       BPI (BITS PER INCH) ______________________14,740
       AVERAGE ACCESS (ms) ______________________65
       SINGLE TRACK SEEK (ms) ___________________20
       MTBF (power-on hours) ____________________50,000
       POWER REQUIREMENTS: +12V START-UP (amps) _2.4
                           +12V TYPICAL (amps) __0.9
                           +5V TYPICAL (amps) ___0.8
                           TYPICAL (watts) ______14.8
                           MAXIMUM (watts) ______33
       BUFFERED STEP PULSE RATE (micro sec) _____5-200
       WRITE PRECOMP (cyl) ______________________N/A (616)
       REDUCED WRITE CURRENT (cyl) ______________N/A (616)
       LANDING ZONE (cyl)________________________670
       IBM AT DRIVE TYPE ________________________6
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