CCW with EXCP usage by MIM

Products

• MIM Resource Sharing (MIM)
• MIM Data Sharing (MII)
• MIM Tape Sharing (MIA)
• MIM Message Sharing (MIC)

Issue/Introduction

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 ?

Environment

Release: ANY
Component: MIM-Resource Sharing-for z/OS

Resolution

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.