IDAETDVV23 - Maximum VSAM open blocks exceeded

Application Execution (AE) Messages › › IDAETDVV23 - Maximum VSAM open blocks exceeded

Reason:

A RUN-unit accessed too many VSAM files for CA Ideal to accommodate. This message applies to all programs and subprograms called since the beginning of the RUN.

Action:

Consider separating the application into several simpler applications that access fewer VSAM files throughout the life of the RUN.

You can accomplish the transfer between these simpler applications in the online CICS environment by transparent signon between separate transactions, one transaction for each of the simpler applications.
Sequential processing of separate RUNs in general are more efficient than a single program designed to perform a single process.