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IBM 3741 Operator's Manual page 206

Data station
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Code
Type
253
Storage
255
Storage
5x0
1
Data set
5x 1
1
Data set
5x2
1
Data set
5x3
1
Data set
Cause
Hardware failure.
Hardware parity error.
Drive door not latched shut.
Data set name not found; probably
the wrong disk.
Record length error; probably the
wrong disk or incorrect label.
Invalid label extent; probably the
wrong disk or incorrect label.
1
x=data set number (1 through 4).
What You Do
Press ALPHA SHIFT and NUM SHIFT with RESET to return
to Index {X) mode and then run hardware diagnostics to check
out the machine.
Note: EOD is not updated. Follow your local procedures for
a power outage to update the EOD and continue with the job.
Same procedure as 253.
Close drive and press RESET to retry.
196
Insert correct disk; then press RESET to retry. Press NUM SHIFT
alid RESET to terminate ACL program and go to code 100.
Insert correct disk, then press RESET to retry.
Press NUM SHIFT and RESET to terminate ACL program and
go to code 100. If the error occurred while creating or changing
the data set label, make the correction to the label and reload the
program. Get programmer assistance if required.
Same as procedure 5x2.

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