Table of Contents
Advertisement
a)
When
writing something
on
the
jacket
label
of the media,
do
not use a ball point pen or pencil, use felt-tipped pens.
b)
Do not
hold
the
edges of
the
media
with
paper clips
or
the
like.
c)
Do not touch the media exposed in the slot of the jacket.
d)
Do not
attempt to
clean the media.
e)
Do not
keep
the
media in
the
areas where
there
is a strong
magnetic field.
f)
The diskette should be kept in its jacket.
g)
Special care should be exercised s t > that the media is kept free
from liquid, dust, metal particles, etc.
h)
Take care not to exceed the following environmental conditions:
Temperature
10
to
47
°C
Relative humidity
20 to 80 %
3.4
Seek error
Few seek errors will be experienced due to the low stepping
rate,
less
than
12
msec/track.
In
case
of
a
seek
error,
however,
recalibration of track position can be performed.
This can be done
by
repeatedly
stepping
the
head
towards
track
0 untill
track
0
status is detected.
t.5
Write error
In order
to check the quality of
the data,
perform a read-after
write operation.
When data can not be read, rewrite that track and
sector once again.
When
data
can
not
be
read
after
four
such
operations
track
is
defefective.
3.6
Read error
What happens quite often when performing a read operation is a soft
error.
A
soft
error
is
defined
to
be
a
read
error
which
is
recoverable by making ten or less read operations.
However, in the
event no recovery is made in ten operations, move one step from the
track
in the same direction as the previous step,
then return one
step.
If this fails to read the data, this error is unrecoverable.
18
Advertisement
Chapters
Table of Contents
