Net-Storage is made available to the BS2000 system by means of one or more Net-Storage volumes which extend a pubset. While the Net-Storage volume on the net server corresponds to a directory in the file system released for BS2000, from the BS2000 viewpoint it is a disk.
In contrast to “normal” BS2000 disks, in BS2000 no device exists on which a Net-Storage volume could be mounted. Consequently, Net-Storage volumes are not generated.
As of BS2000 V21.0A, there is a second Net Storage volume type NETVOL (internal type A8) in addition to the previous Net Storage volume type NETSTOR (internal type A9).
While only the catalog entries exist in TSOSCAT of the pubset for files on a Net-Storage volume of the NETVOL type, each Net-Storage volume of the NETSTOR type has its own file catalog with the name .BS2FSCAT.
It contains a copy of the catalog entry in TSOSCAT of the pubset to which the Net-Storage volume is assigned for all files that are stored on the NETSTOR type Net-Storage volume.
As of BS2000 V21.0A, the ADD-NET-STORAGE-VOLUME command is always used to set up Net Storage volumes of the NETVOL type and assign them to a pubset.
Existing Net-Storage volumes of the NETSTOR type will continue to be supported in BS2000 V21.0A.
The volume type NETSTOR or NETVOL must be specified in the DEVICE-TYPE (or TYPE) operand for a Net-Storage volume.