IEA461I dev INCORRECT USE OF SUMMARY UNIT CHECK SUPPORT WITH z/OS GUESTS ON VM. REFER TO MESSAGES AND CODES FOR MORE DETAIL, SENSE=xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx
Explanation
z/OS® is a guest under z/VM® and one or more devices are defined to z/VM as unsupported. The control unit has been enabled for Summary Unit Check which will not be processed correctly by z/OS. This will cause access problems to devices in the 2107 control unit.
In the message text:
- dev
- The device number
- sense
- The 32 characters of sense data reported by the device.
Operator response
Notify the system programmer.
System programmer response
Correction of the z/VM and z/OS configuration
must occur to allow for proper handling of the use of Summary Unit
Check. To allow for proper handling of the Summary Unit Check, you
have the following options:
- Attach all unsupported devices to a single VM Guest.
- Attach unsupported devices to multiple z/OS guests with the maintenance introducing this message propagated to all z/OS systems.
- Define All devices behind a Logical Control Unit as unsupported. Devices can not be defined to z/VM as some supported and some unsupported.
Module
IGGSNS01