M2488 PRODUCT GUIDE
MAINTENANCE AND SERVICING
April 1997
CG00000-011503 REV. A
8-9
8-3.2
Sense Information Bytes 20-43
Refer to the correct sense information format in the following paragraphs.
8-3.2.1
Format 0 Sense Information Description for SIC
All bytes are 00h.
8-3.2.2
Format 01h Sense Information for FMT
The Format 01h Sense Information for FMT is shown in Table 8-6 and described in Table 8-7 and
Table 8-8.
Table 8-6. Format 01h Sense Information, FMT
BITS
BYTES
7
6
5
4
3
2
1
0
20
FMT ERPA Code
21
MC error
MTU error
0
1
Retry Count
22-23
First Fault Symptom Code
24-25
Second Fault Symptom Code
26-27
Last Fault Symptom Code
28
Error Command Code
29-39
Additional Format Error Information Type
40-43
RBID (Block ID)
Table 8-7. Format 01h Sense Information, FMT Field Description
BYTE
BIT
VALUE
DESCRIPTION
20
0-7
The FMT ERPA codes are the same as the ERPA codes defined for sense byte 19 in
Appendix C.
21
0-3
The Retry Count is incremented by one each time a re-read or re-write is performed in
the original direction of the command being processed.
21
6
The MTU Error bit is set when the error is known to be in the MTU.
21
7
The MC Error bit is set when the error is know to be in the Medium Changer.
22-27
The first symptom code represents the initial error condition detected, the second symp-
tom code represents the secondary error condition detected, and the third symptom code
represents the last error condition detected. See Appendix D for the fault symptom
codes.
28
0-7
This is the command code of the command being processed when the error was
detected.
29-39
The value in byte 29 determines the register for bytes 30-39. See Table 8-8.
40-43
The tape position at which the error was detected as expressed in the physical (byte 40)
and logical (bytes 41-43) Block ID.
Содержание M2488
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