Compatibility Restrictions

You should be aware of the following compatibility issues between CA MIA and z/OS operating system functions:

CA MIA cannot manage devices that are being managed by JES3. You can run JES3, but you cannot manage tape devices with JES3 and CA MIA. If you want CA MIA to manage devices that are currently under JES3, then you must remove the devices from JES3 management.
CA MIA cannot manage devices that are defined to z/OS as “automatically switchable” (through HCD or the z/OS VARY AS=ON command). If you want CA MIA to manage devices currently defined as automatically switchable, then you must issue z/OS VARY AS=OFF commands for those devices and update the HCD definition.
There is a potential for cross-system deadlocks to occur on device group locks if a user has specified (through HCD or the z/OS CP command) mismatching search orders for z/OS generic device groups containing CA MIA managed devices. We recommend using identical z/OS generic device group search ordering on all systems in the CA MIA complex.