Disklabel gets drive RPM incorrect

[Doug Dalton <ddalton@shortbus.net>]

The rpm of the drive I have, the Seagate ST380021A , is 7200 RPM but
when I look at the disklabel information it has the drive listed at
3600,  is this impacting performace of the drive?

disklabel wd0
# using MBR partition 3: type A6 off 63 (0x3f) size 156296322
(0x950e482)
# /dev/rwd0c:
type: ESDI
disk: ESDI/IDE disk
label: ST380021A
flags:
bytes/sector: 512
sectors/track: 63
tracks/cylinder: 16
sectors/cylinder: 1008
cylinders: 16383
total sectors: 156301488
rpm: 3600
interleave: 1
trackskew: 0
cylinderskew: 0
headswitch: 0           # microseconds
track-to-track seek: 0  # microseconds
drivedata: 0