Working with esoteric groups

An esoteric device group identifies the I/O devices that are included in that group. The name you assign to an esoteric device group is called the esoteric name. To request allocation of a device from an esoteric device group, specify the esoteric name on the UNIT parameter of a JCL DD statement. The name esoteric device group is often shortened to esoteric group or simply esoteric.