DFS2704A BSIZ NOT SPECIFIED

Explanation
 There were DEDBs or MSDBs in use, but no data
buffer size was specified.

System action
 IMS terminates abnormally with abend
1011.

Programmer response
 Update the BSIZ parameter in the IMS procedure
or override the parameter at IMS startup time. If neither an MSDB nor
a DEDB is in use, no suffix for an MSDB can be defined, and no DBD should
be on the IMS ACBLIB for any DEDB.