DFS2711A BSIZ VALUE WRONG

Explanation
 The BSIZ value specified in the IMS startup
procedure is invalid. The data buffer size (BSIZ) must be a multiple
of 4 KB unless the BSIZ value is 512, 1024, or 2048. The maximum BSIZ
value is 28 672.

System action
 IMS terminates with abend 1011.

Operator response
(master terminal)  Restart IMS.

Programmer response
 Correct the BSIZ parameter value in the IMS procedure.