IBM 9348 Service Information page 20

Figure
1-2 (Page 3 of 4). Tape Read Reference Codes
1-8
9348
Service Information
Ref.
Code
002F
0030
0031
0032
0033
0035
0039
003A
003B
003C
Part Number
Tape
21 F7923
21 F7933
Tape
21 F7923
21 F7933
Tape
21 F7923
21 F7933
Tape
21 F7923
21 F7933
Tape
21 F7923
21 F7933
21 F7923
21 F7923
21 F7933
Tape
Probable
Cause
60 %
25%
14%
60 %
25%
14%
60 %
25%
14%
60 %
25%
14%
60 %
25%
14%
99 %
50
O / O
35%
14%
Action
A timeout occurred during the interblock gap check. This problem
may be caused by a bad tape or a dirty tape path. Clean the tape path;
see "Cleaning Procedure" on page 4-3. Load a tape that is known to
be good and attempt the operation again, or run test 2 to verify the
repair.
If this reference code continues to occur, exchange the FRUs as
needed, and run test 2 after each FRU is exchanged to verify the
repair.
The tape unit detected an interblock gap that was too short This
problem may be caused by a bad tape or a dirty tape path. Clean the
tape path; see "Cleaning Procedure" on page 4-3. Load a tape that is
known to be good and attempt the operation again, or run test 2 to
verify the repair.
If this reference code continues to occur, exchange the FRUs as
needed, and run test 2 after each FRU is exchanged to verify the
repair.
A block overrun error occurred during a read operation. This problem
may be caused by a bad tape or a dirty tape path. Clean the tape path;
see "Cleaning Procedure" on page 4-3. Load a tape that is known to
be good and attempt the operation again, or run test 2 to verify the
repair.
If this reference code continues to occur, exchange the FRUs as
needed, and run test 2 after each FRU is exchanged to verify the
repair.
The tape unit detected an identification (ID) block (0032) or read a tape
mark (0033) that was not correct. This problem may be caused by a
bad tape or a dirty tape path. Clean the tape path; see "Cleaning
Procedure" on page 4-3. Load a tape that is known to be good and
attempt the operation again, or run test 2 to verify the repair.
If this reference code continues to occur, exchange the FRUs as
needed, and run test 2 after each FRU is exchanged to verify the
repair.
This reference code may be caused by a bad tape or a dirty tape path.
Clean the tape path; see "Cleaning Procedure'' on page 4-3. Load a
tape that is known to be good and attempt the operation again, or run
test 2 to verify the repair.
If this reference code continues to occur, exchange the FRUs as
needed, and run test 2 after each FRU is exchanged to verify the
repair.
An error occurred during a read-tape-mark operation. If this reference
code continues to occur, exchange the FRU and run test 2 to verify the
repair.
Tracks with gain too low (003A), too high (003B), or too low and too
high (003C) were detected during a read-channel autocalibration. This
problem may be caused by a bad tape or a dirty tape path. Clean the
tape path; see "Cleaning Procedure" on page 4-3. Load a tape that is
known to be good and attempt the operation again, or run test 99 to
verify the repair.
If this r e f e r e n c e
tn
t n
the
FRlls as
needed, and run test 99 after each FRU is exchanged to verify the
repair.