Steps to join/remove a MIM without global shutdown

Products

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

Issue/Introduction

With MIMINIT COMMUNICATION=DASDONLY, what is required to join/remove a MIM system into/from MIMPlex without MIM control format ?

Environment

Release: 12.5
Component: MII

Resolution

Modifications to the DEFSYS statement require a CA MIM restart with FORMAT=CF. The exception is adding a system to the DEFSYS statement after adding a system dynamically.

When a MIM system is started and joined to MIMPlex without DEFSYS statement definition, MIMPlex assigns system index numbers to INDEX and ALIAS of the MIM.

When a MIM system is started and joined to MIMPlex with DEFSYS statement definition, MIMPlex uses the information to assing the MIM.

Removing a MIM system without MIM control file format, ALTERSYS systemid, STATUS=DISABLE is available.