Use the PDSTYPE statement in the FTP server and client to indicate whether to allocate MVS™ directories as partitioned data sets or as partitioned data sets extended. You can also use the SIte and LOCSIte subcommands to set this keyword.
This is one of many statements available to control how MVS directories are allocated when the server receives an MKD command with an MVS PDS name argument.
You should specify PDSTYPE without the PDS or PDSE parameters if the DATACLASS statement is specified and the PDS type from the SMS data class is going to be used.
PDSTYPE PDSE
Specify PDSTYPE with no value to obtain the PDS type from an SMS data class.