The DELETE parameter to remove older FMIDs can be added by the installer to remove the older FMIDs when the next version is installed. The installation documentation will be updated.
S0C1 occurs when using $INSTALL=9 to prevent FDM from adding a seed record to the dataset. Older FDM documentation from early releases indicates that the s0c1 could be normal. From customer abend:
If you are planning to rename members of an LLA controlled data set, set “Remove renamed members” in SETALL for MEMLIST to NO. Then, after a member is renamed with the REN line command, enter an LLA line command on both the old and new member names to inform LLA of their status changes. After the LLA subcommands finish , remove the old member name with an X line command.
