60MB Tape Drives -- Repair??

[Steve Harris]

We have a number of the old Sun shoeboxes with 60MB cartridge tape drives
(Archive & Wangtek) at customer sites in the field.  We distribute
software upgrades to our customers on cartridge tape.

Occasionally, a tape drive in the field will become misaligned -- it will
not read the distribution tapes manufactured on our primary server here in
the lab.  We assume this is a head alignment problem, the drive in the
field can write and read its own tapes without problem.

Normally, we simply replace the misaligned drive with a new Archive
Scorpion drive purchased on the open market.  We are now developing a
collection of misaligned tape drives, and are looking for somebody to
re-align them.  Can anybody recommend a supplier of such a service?

Also, can anybody comment on the reliability of the new, 150MB tape
drives, vis-a-vis head alignment consistency.

Thanks in advance,
Steve Harris - Eaton Corp. - Beverly, MA - uunet!etnibsd!vsh