Module MIMETF34 information

Products

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

Issue/Introduction

 General information on MIM module MIMETF34.

Resolution

MIMETF34 is the MIA SVC 34 intercept code that hooks SVC34 calls looking for VARY device commands.

 

After initialization verification, MIMETF34 interrogates the MGCR(E) looking for potential VARY commands. No storage is GETMAINed or  FREEMAINed in this process.

 

• If the SVC caller is not MIA's initialization routine , MIMETF34 simply  branches on to SVC 34  (or the next SVC 34 intercept) without doing any more processing.
• If the SVC caller is MIA's initialization routine, MIMETF34 sets a flag in a MIA control block for MIA use and branches back to the caller (MIA's initialization routine)  without going on to SVC 34 processing.

 

So in general MIMETF34  processing is very minimal.