z/OS HCD User's Guide
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Production IODF

z/OS HCD User's Guide
SC34-2669-00

Production IODF

The data set name for a production IODF has the same format as a work IODF. You may specify additional qualifiers to differentiate among IODFs (for example for backup reasons). However, the optional qualifiers must be omitted if the IODF is to be used for IPL or dynamic activation. Thus, the format would be:

'hhhhhhhh.IODFcc'

hhhhhhhh
is the high-level qualifier; up to 8 characters long.
cc
is any two hexadecimal characters (that is, 0-9 and A-F).

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