ZiLOG System 8000 Hardware Reference Manual page 272

HRM Zilog
o read
=
READ commands
o size
=
SIZE commands
o inv
=
"i.nvalid" packet commands
NOTE
Only SMDMON Ccln issue invalid commands through the
DOPKT command. These commands are tallied as
invalid, even though they may be valid commands.
HRM
Tallies of
~ll
soft errors reported by the SMD con-
troller after execution of a packet command, including:
o TOTAL
=
the number of times one or more error
status bits (SB) were returned, but the ending status
(ES) indicated no uncorrectable errors occurred.
o rty
=
soft errors with retries attempted
o corr
=
soft errors with correction attempted
o
rz = soft errors with a disk rezero attempted
Tallies of all uncorrected (hard) data errors reported
by the SMD controller after execution of a packet com-
mand, including:
o TOTAL
=
the number of times a hard data error was
returned in the ending status
o rty
=
hard data errors with retries attempted
o corr
=
hard data errors with correction attempted
o rz
=
hard data errors with a disk rezero attempted
Tallies of drive errors encountered during execution of
packet commands, including:
o TOTAL
=
the number of times one or more drive errors
occurred during execution of a packet command
o df
=
drive faults
o se
=
drive seek errors
o noc
=
drive not-on-cylinder errors
o nrdy
=
drive not ready errors
o
busy = dual-access busy errors
Tallies of all SMD controller timeout errors during
packet command execution, including:
o TOTAL
=
the total number of timeout errors
o idle
=
timeouts in the controller's idle loop
o ius
=
timeouts waiting for IP/IUS to clear
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Zilog
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