Disk Related Problems; Hard Disk And Diskette Drive Troubleshooting Procedures - DEC DECstation 316+ Service Manual

2–16 Troubleshooting

2.6.2 Disk Related Problems

Table 2–6 lists some common disk related problems, possible
causes, and suggested corrective actions. If the corrective action
does not work, run the Diagnose diagnostics to further isolate the
problem and then replace the failing FRU.
Table 2–6 Hard Disk and Diskette Drive Troubleshooting
Procedures
Problem
Hard disk cannot read
or write information.
Intermittent hard disk
read/write problems.
Hard disk works
but produces extra
characters or garbled
text.
System won't start from
the diskette drive or
displays the message
Abort, Retry, Ignore.
Diskette drive
cannot read or write
information.
Possible Cause
Problem exists with
the drive or drive
adapter.
Possible corrupted
files.
Hard disk is affected
by static electricity.
The diskette has
been demagnetized.
Improperly
formatted diskette.
The diskette drive is
empty.
Diskette is not
formatted.
Corrective Action
Make sure all
jumpers are set
correctly.
Restore disk from
back-up files.
Move system away
from any motors,
magnetic devices,
or photocopiers.
Increase the
humidity in the
room and use anti-
static mats around
the system.
Make sure the
disk drive cable is
correctly installed.
Replace the
diskette.
Reformat the
diskette.
Insert a diskette
into the diskette
drive.
Use a preformatted
diskette.