Depending upon how old you HD is, park might be
entirely unnecessary.
Also depending upon the machine. One of my machines parked the heads
(by interrupt generated by the power switch) on every power down. I
The drive is a Tandon TM-501 or 502 in a TRS-80 Model 2000
running DOS 2.00. I know neither the machine itself or the drive
automatically parks on shutdown or after a timeout and Tandy's OEM
version of DOS didn't include the utility either. My personal
preference in the machine is the ST-225, but the Tandon in this one
is still going strong as it only saw light use.
Jeff
--
Collector of Classic Microcomputers and Video Game Systems:
Home of the TRS-80 Model 2000 FAQ File
http://www.geocities.com/siliconvalley/lakes/6757