[comp.sys.sun] Vipers read QIC-11?

khaw@parcplace.com (Mike Khaw) (07/04/90)

Do the Archive Viper QIC-150 1/4" tape drives read QIC-11 format?  I know
they read QIC-24 and read&write QIC-150.

jms@tardis.tymnet.com (Joe Smith) (07/11/90)

In article <9624@brazos.Rice.edu> khaw@parcplace.com (Mike Khaw) writes:
>Do the Archive Viper QIC-150 1/4" tape drives read QIC-11 format?  I know
>they read QIC-24 and read&write QIC-150.

No, and that one bit me bad.  I had duplicated a boot tape by reading it
on /dev/nrst0 on one 3/50 and piping that via rsh and dd to /dev/nrst0 on
another 3/50.  The original tape was QIC-24 (nrst8) format.  It was read
OK because the drive does auto-density select on reading.  The duplicate
tape, however, was exactly what I told it; QIC-11 (nrst0) format.  Since I
could boot from the duplicate, I thought it was OK.  But a new 3/60 with a
Viper drive could not read it at all.  The new drive reads only QIK-24 and
QIK-150, it cannot read QIK-11.

Joe Smith (408)922-6220 | SMTP: jms@tardis.tymnet.com or jms@gemini.tymnet.com
BT Tymnet Tech Services | UUCP: ...!{ames,pyramid}!oliveb!tymix!tardis!jms
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San Jose, CA 95161-9019 | humorous dislaimer: "My Amiga speaks for me."

smart@hp-sde.sde.hp.com (07/18/90)

In article <9624@brazos.Rice.edu> khaw@parcplace.com (Mike Khaw) writes:
>Do the Archive Viper QIC-150 1/4" tape drives read QIC-11 format?  I know
>they read QIC-24 and read&write QIC-150.

The Viper cannot read QIC-11. If QIC-11 is a necessity, look at the
Wangtek 5150. This drive reads QIC-11, QIC-24, and QIC-150. The drive
writes QIC-150.  This is *not* a sun supported drive, but can be found at
many third party Sun integrators (Artecon being one of them).  The drive
is functionally equivalent to the Viper.