When running a LIBR Backup with option RESTORE=STANDALONE I get the following message:
0014 0P31A DVC NOT OP SYS006=F99
CCSW= NOT AVAILABLE CCB=0061DA50
where device F99 is my first dummy tape drive for DYNAM/T
IF I run a LIBR with NO Restore=Standalone before the Restore=Stand it works ... Am I missing something?
The initial reported problem where message 0P31A DVC NOT OP is issued when you specify RESTORE=STANDALONE occurs because IBM does pre-open checking when RESTORE=STANDALONE is specified which is why you need to add a TDYNASN ASSGN before executing LIBR.
Sample JCL in Chapter 2 of the User Guide provides guidance
// JOB BACKUP STANDALONE
// TLBL BACKUP,'LIBR.BACKUP',0,,,,,08
// EXEC TDYNASN,SIZE=128K
ASSGN BACKUP,SYS006,OUTPUT
/*
// ASSGN SYS010,SYS006 */ SAVE TAPE ADDRESS FOR MTC RUN */
// EXEC LIBR
BACKUP LIB=IJSYSRS TAPE=SYS006 RESTORE=STANDALONE TAPEL=BACKUP
/*
// MTC RUN,SYS010