A disk drive is disclosed comprising a disk having a plurality of tracks,
a head actuated over the disk, and a voice coil motor for seeking the
head from a first track to a second track. A first seek time is computed
corresponding to a first seek profile, and second seek time is computed
which is greater than the first seek time. A second seek profile is
computed in response to the first seek time, the second seek time, and a
scaling factor that accounts for a back EMF voltage generated by the
voice coil motor. The voice coil motor is then controlled according to
the second seek profile to seek the head from the first track to the
second track.