IEC133I
ddname, OPEN FAILED FOR EXTENDED TIOT

Explanation

An OPEN macro was issued for a data control block (DCB) that specified a DD name of ddname, which has an extended TIOT entry. OPEN requires both of these to be true: the NON_VSAM_XTIOT option in the DEVSUPxx member of PARMLIB is set to YES and the application program must set LOC=ANY in the DCBE. One or both of these options is not true.

In the message text:
ddname
The DD name.

System action

for BSAM, QSAM and BPAM when any of the 3 dynamic allocation options are in use:
NON_VSAM

_XTIOT

DCBE LOC= Result
NO or not coded BELOW or not coded OPEN return code 8, Message IEC133I, DCBOFOPN bit is off.
NO or not coded ANY ABEND 113-4C, messages IEC133I and IEC142I.
YES BELOW or not coded OPEN return code 8, Message IEC133I, DCBOFOPN bit is off.
YES ANY Successful OPEN.
If OPEN gives return code 8, attempts to read or write the data set will result in abnormal end.

Programmer response

Probable user error. Take the following steps:
  1. Avoid the XTIOT, UCB nocapture and DSAB-above-the-line options of dynamic allocation.
  2. Request the system programmer to enable the NON_VSAM_XTIOT option in the DEVSUPxx member of PARMLIB and change the program to set LOC=ANY in the DCBE macro.

Source

DFSMSdfp.