ZiLOG System 8000 Hardware Reference Manual page 278

HRM
ERROR MESSAGES:
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HRM
SMDFMT displays and logs error messages with the format
described in the INTRODUCTION TO SMD DIAGNOSTICS. The
possible contents of the Operation Field of error mes-
sages are described in the following table:
OPERATION FIELD
Field Contents
WRITE FORMAT
REWRITE FORMAT
READ TRACK IDS
READ SECTOR ID
WRITE TRACK-xxxx
WRITE SEC-xxxx
READ TRACK-xxx>c
READ SEC-xxxx
Explanation
The error occurred writing the
sector headers for a full track
with the FMT packet command.
SMDFMT rezeroes the drive and
retries the format if it gets
an error status the first time.
The diagnostic was reading the
sector headers for a full track
or a single sector with the FRD
packet command. SMDFMT first
tries to FRD an entire track.
If it gets a bad ending status,
it tries FRD sector by sector.
The diagnostic was writing or
re~ding
a full track or a single
sector. The pattern being written
replaces xxxx (hexadecimal). The
diagnostic will try to write and
read tracks unless an error occurs.
When an error occurs, it will try
to pinpoint bad sector(s) by writing/
reading single sectors.
SMDFMT also displays and logs the following error messages:
COMPARE ERROR IN SECTOR ID DISK:u,cccc,hh,ss
The sector header for the disk address given did
not contain the correct data in the cylinder, head
and sector fields. This is considered an
uncorrectable error in the sector. "u", "cccc",
"hh" and "'ss" replace the disk unit, cylinder,
head and sector numbers where the compare error
occurred.
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