DFS1084A SYSUT1 COULD NOT BE OPENED

Explanation
 The Sequential Buffering (SB) test program (DFSSBHD0)
was unable to open the //SYSUT1 data set containing the SB image capture
log records. This message follows z/OS® messages
describing why the error occurred.

System action
 IMS abnormally terminates the SB
test program.

User response
 Make sure that the //SYSUT1 DD statement defining
the data set for the test program is present and correct. See the
messages issued by z/OS as well.