Device name of the file system
File system names must be unique within a GPFS cluster. However, two different clusters can have two distinct file systems with the same name.
The device name of the file system does not need to be fully qualified. fs0 is as acceptable as /dev/fs0. The name cannot be the same as an existing entry in /dev. The file system name must be no longer than 128 characters.
Note: If your cluster includes Windows nodes, the file
system name must be no longer than 32 characters.