A CA Datacom database index or data file is managed the same as any other standard sequential Basic-type file in z/OS.
This article explains how to add more volumes to an SMS-managed file. Due to the size of a particular file, it may not be possible to perform a standard process to backup, allocate, initialize and load a new file; therefore, this procedure is a good alternative.
Component : CA Datacom/AD
Component : CA Datacom/DB
This process can be done with minimal disruption to an application; however, for best effect, it should be done during a period of light activity for the database area.
For more information on the IDCAMS ALTER ADDVOLUME command, please refer to the IBM z/OS DFSMS Access Method Services Commands documentation for the ALTER command
As always, please contact Broadcom support for CA Datacom if you have further questions.