FABH0056W NUMBER OF BUFFERS IN A SEQ_BUF xxx CHANGE TO yyy
The number (xxx) of CIs to be read by one sequential read for the data set identified by ddname is too large. The number xxx is the one that was specified by the RANSIZE control statement or the CABBASE control statement. The ESDS cannot chain CCWs for that number of CIs in a single start I/O. The maximum number of CIs (yyy) that can be read depends on the CI size and is displayed in the message.
The processing continues with the maximum number (yyy) of CIs.
Specify the value yyy indicated in the message for RANSIZE.