Customer asked about CCW with EXCP usage by MIM. 1 Does MIM use CCW with EXCP ? 2 Does MIM use a file to be open as INPUT and use the file as OUTPUT in subsequent process ?

Document ID : KB000016758
Last Modified Date : 14/02/2018
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Question:

Customer asked about CCW with EXCP usage by MIM.

 

1 Does MIM use CCW with EXCP ?

2 Does MIM use a file to be open as INPUT and use the file as OUTPUT in subsequent process ?

Answer:

MIM uses OPEN/SVC 19 with the UPDATE option(not INPUT) when opening the DASD control files and checkpoint files. 

 

MIM uses EXCP/SVC 0 when reading/writing to the DASD control files and checkpoint files.