When I try to get into =4.1.1, receives below error.
GET OF 3890336 BYTES IN SUBPOOL X'00' ERROR RC=X'00000004' REQUESTED BY OPSMM
G+X'000798'
MESSAGE QUEUE GETMAIN FAILED, RC=X'04', DETECTED AT OPSMMG+X'000007EE'
ALLOCATION OF EXTERNAL DATA QUEUE FAILED, RC=4
***
OPS/MVS
This error typically occurs when the value for REXXMAXQUEUE is set to high. Recommend lowering the value.