Advanced Topics › TPCF Device Processing › How z/OS and Other Vendor Products Preference Devices

How z/OS and Other Vendor Products Preference Devices

This section describes how z/OS and other vendor software can influence or limit the ability of TPCF to preference.

Devices can be preferenced for a variety of reasons. Some common examples are:

• z/OS generic preferencing (preference values set for 3480, 3490, and other devices in HCD panels)
• z/OS ACL preferencing (for details, see the following sections)
• Robotic software preferencing based on the existence of a device inside or outside the robot or client customization

Any preferencing performed by z/OS or vendor software combines with and possibly overrides TPCF preferencing. Final preferencing by z/OS results from a combination of the elimination and preferencing performed by z/OS and other vendor products.