Commodore A 2091-40 - Using the Hard Disk; Backing up Your Hard Disk; Hard Disk Error Management; Recoverable Errors

Using
the
Hard
Disk
41
Chapter 4: Using the Hard Disk
41 Backing Up Your Hard Disk
Before adding new data to your hard drive, it is strongly suggested that you purchase
a hard disk backup program for copying the information stored on the hard disk to
a backup device. (Please see your local software dealer for information on the
available programs.) You should backup the hard disk frequently, daily or weekly
depending
on
how
often
it
is
used.
Without
a
backup,
it
will
be
impossible
for
you
to replace any files that may be lost due to user error or systém failure.
4.2 Hard Disk Error Management
You should run Verity Data on Drive from the HDToolbox program at least once
a
month.
This
will
often
locate
blocks
on
the
disk
that
may
later
develop
problems.
4.2.1 Recoverable Errors
When the verify program locates a block that may eventually become unreadable,
it copies the information from that block onto a new block. This will be reported as
a recoverable error. By marking a questionable block as bad and moving the
information from that block to another location, you will avoid losing that information
when the block becomes unreadable. In this case there is no need to format the
hard disk and restore the file from the backup copy.
4.2.2 Nonrecoverable Errors
When the verify program locates a block that cannot be read, the system reports
itas Bad block found. This js known as a nonrecoverable error. The information
stored on that block has been lost.
When
Verity
Data
on
Drive
finds
a
recoverable
or
nonrecoverable
error,
the
system
will
display
the
location
of
the
block.
You
must
then
choose
one
of
three
options:
1.
Have
the
system
add
the
block
to
the
Bad
Block
List
and
then
continue.
2.
Ignore
the
block
and
continue
verifying
the
data
on
the
disk.