DESERV GET returns SMDEs for members of opened PDSs or PDSEs or a concatenation of PDSs or PDSEs. The data set can be opened for either input, output, or update. The SMDE contains the PDS or PDSE directory. The SMDE is mapped by the IGWSMDE macro and contains a superset of the information that is mapped by IHAPDS. The SMDE returned can be selected by name or by BLDL directory entry.