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Table 6-4.
Class 02 Error Codes (System-Related Errors)
CODE
20
21
22
23
24
25
26
27
28
29
2B
2C
20
2E
2F
500504-00
ERROR
ILLEGAL COMMAND
ILLEGAL BLOCK
ADDRESS
NOT ASSIGNED
VOLUME OVERFLOW
BAD ARGUMENT
INVALID LOGICAL
UNIT NUMBER
NOT ASSIGNED
WRITE PROTECT
CARTRIDGE
CHANGED
MICROCODE
DETECTED
SET LIMIT
VIOLATION
ERROR COUNT
OVERFLOW
SCSI
HA/INITIATOR
DETECTED ERROR
SCSI BUS OUT
PARITY. CHECK
ADAPTER PARITY
CHECK
MEANING
Command code is invalid
or not implemented
Block address outside
address space by Logical Unit
Illegal block address
after first block
Reserved bit not zero
or invalid parameter
Logical Unit greater than
3 addressed
Drive has write protect
option active
A disk drive cartridge
was installed since the
last time a command was
executed.
Difference in drive parameter
data and physical drive
characteristics
Read, Write, or Set Limit
attempted in violation of
previously linked Set Limit
Command
Posted when error count
exceeds specified threshold
A message '05'H
(Initiator Detected Error)
was received from the host
A parity check was
detected on SCSI bus out-
bound information transfer.
The ACB-5500 detected an
internal hardware check.
6-8
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