Zenith Z-100 Series, User Manual

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WINCHESTER SUPPLEMENT
The VERIFY Utility
You should now back up your Winchester disk with the
BACKUP utility and then reformat your disk partitions
using the appropriate operating system(s). This operation
will "lock out" the bad sectors so that you may be assured
of continued high performance from your Winchester sys-
tem.
While this discussion has stressed what to do with bad sec-
tors, the actual need for this utility (as well as the other utilities
on this disk) will be minimal once your system has been in
use for a month or two. Failures due to contamination from
smoke and dust particles found in the air around your Com-
puter are rare because the Winchester disk is entirely sealed.
However, a small number of sector failures is normal when
a disk is new. Manufacturers consider a Winchester disk to
be acceptable if it has less than 20 errors. It is not unusual
for a drive to develop several additional bad sectors during
the first month or two of regular operation.