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8.1.7.2 Backout Utility/Disk Logging
IMS/ESA supports both DASD and tape logging in batch. The archive utility
DFSUARC0, is used to copy disk logs to tape. Disk is acceptable as input to all
IMS/ESA utilities including backout.
8.1.7.3 UPSI
The use of the UPSI byte is not supported by MVS. The equivalents for the
various bits are:
Bit 0: Reading of parameter statement.
This function is replaced with parameters in the EXEC statement of the MVS
JCL.
Bits 1-3: Available to the application programmer.
If these bits have been used, the application programs must be modified to
the MVS standard established for the installation.
Bit 5: Storage dump request if STXIT active.
The presence of the SYSUDUMP DD statement determines if a dump is to be
taken in MVS.
Bit 6: Log function active or inactive.
The IEFRDER DD statement being set to DD DUMMY is the only way to avoid
logging with IMS/ESA. If Data Base Recovery Control (DBRC) is used,
logging is forced for all batch problems using a PSB with update intent on
any DBRC registered database. Thus, you may not specify IEFRDER DD
DUMMY.
Bit 7: Setting STXIT active or inactive.
There is no direct equivalent required in MVS. The SPIE= parameter in the
IMS/ESA EXEC statement relates to the handling of an application program
SPIE during a CALL. For more information see the 
IMS/ESA System
Programmers Guide, procedures DBBATCH and DLIBATCH.
8.1.7.4 DL/I Parameter Statement
The functional equivalents of this statement in IMS/ESA are implemented
through either EXEC statement PARMs or entries in the DFSVSMnn member of
IMSESA.PROCLIB. This is located through the DFSVSAMP DD statement. The
following applies only to VSAM databases. For OSAM options and more detail on
VSAM, see the 
IMS/ESA Installation Guide and the IMS/ESA System
Administration Guide.
DL/I Parameter
IMS/ESA Equivalent
progname
PARM on EXEC
psbname
PARM on EXEC
buf
# entries DFSVSMnn
HDBFR
VSAM Subpool statement in DFSVSMnn
HSBFR
Uses VSAM Subpool
TRACE =
DFSVSMnn OPTIONS or/and DLITRACE
ASLOG =
OPTIONS LTWA=
LOG =
IEFRDR DD data set
RC=
not supported
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VSE to OS/390 Migration Workbook