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4 ST43401N/ND, ST43402ND User’s Manual, Rev. B
continued from previous page
Characteristics Conditions Specifications
SCSI transfer rate, burst 20.0 Mbytes/sec max
Seek time (time required Typical full 23.5 msec
to move heads to a different Typical average 11.5 msec
track address—excluding Typical one-track 1.7 msec
SCSI I/O overhead)
Typical access times Write Read
msec msec
Single track seek 1.7 0.9
Average seek 11.5 10.5
Maximum seek 23.5 22.5
Latency (time required Average 5.55 msec
to reach a particular (disc rotation
track address after head at 5,400 RPM)
positioning is complete)
Maximum 11.17 msec
(disc rotation
at 5,373 RPM)
Start time** 30 sec max
Stop time 30 sec max
** Following the power sequence delay, once DC power is applied and
start conditions are present.