JES device information services (SSI function code 83) allow an application program to obtain information on devices managed by JES.

The JES device information interface has a JESPLEX scope – information on all devices managed by all members of a JESPLEX is available to an application program running on any system in a JESPLEX.

The interface has extensive filtering capabilities that allow an application program to subset device information by attribute values such as device type, name, and operational state, and by which a JESPLEX member manages the devices.