IDMS and TDMF (Transparent Data Migration Facility)

Products

• IDMS

Issue/Introduction

Can IBM’s Transparent Data Migration Facility (TDMF) for z/OS be used to migrate IDMS data sets? 

Environment

Release: All supported releases

Component: IDMS 

Resolution

Yes, TDMF swap migration can be used to migrate IDMS data from one device to another.  Both devices need to have the same geometry (for instance, 3390 to 3390).  

TDMF is a migration tool that allows data migration without interrupting the availability of any applications that may be using that data (for instance, when a DASD volume is being moved to a new device).  Upon completion of the swap migration TDMF takes the old volume offline, brings the new volume online and redirects subsequent I/O to the new volume.