User guide
Chapter 3
Backing
Up
Your Drive
with the Mirror
This chapter is for those users who have a Corvus Mirror (eithe
built-in
or
add-on) with their Corvus Disk System.
Description of the Corvus Mirror
Corvus Systems has developed a unique system
for
providin!
effective,
low-cost backup for its hard disk drive, known
as
the Corvu
Mirror, using a video cassette recorder (VCR) and video
cassette~
The
Mirror
creates
an
"image",
or
copy, of either virtual drives
or
thl
entire physical drive on the video cassette. The Corvus drive i
configured to appear
as
several (either
two
or
three, depending
01
size) virtual drives to
your
computer.
The Mirror hardware can be ordered
built into Corvus Dis
Systems,
or
it can
be
purchased
as
an add-on option. Mirrorsoftwarl
is
included on the CORVUS UTILITIES diskettes which accompan:
the
Corvus disk drive.
General Tips
Use the same
VCR
whenever possible
for
backing up
your
Corvu
drive. The
VCR
should be set at the standard play speed, and thl
highest quality tape should
be
used to prevent errors. It i
recommended that
VCRs without the color enhancement feature
bl
used,
or
that this feature
be
disabled when using the
VCR
with i
Mirror.
See Appendix E for the capacity
of
different-sized cassettes and
thl
time required to backup 6,10 and
20
MB drives.
You
should
be
familia
with the operation of
your
VCR before using it with the Mirror.
Hardware Installation of the Corvus Mirror
Your drive must already be configured for the number
of
virtUe
drives before using the Mirror. Turn off all power before making
an
connections.
If you have a drive with a Mirror already installed, theserial numbe
and the drive size
should both end with an "Mil. Insert one end of
thl
phono connector cable into the VIDEO out jack on the
VCR,
and
thl
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