A Linux volume is formatted with dasdfmt in the CDL format and partitions put on it with fdasd. It has a valid VTOC on it and a data set for each Linux partition. A Linux volume holds only Linux partitions. No MVS™ or VM data sets or any non-Linux data should be allowed on a Linux volume. A Linux volume can hold one to three partitions and can be a 3380 or 3390.
The data sets created by fdasd are not added to or removed from the catalog by fdasd as they are allocated and deleted. If you manually catalog the data sets, you must uncatalog them if you delete them with fdasd. It is recommended that you leave the data sets uncataloged. The partition and data set naming conventions are listed in Data set and partition naming conventions.