IOS612I
IOACTION - STOP ALLOWED FOR SHARED {DASD} DEVICES ONLY. THE FOLLOWING DEVICE(S) ARE IGNORED: dev,dev1-dev2…

Explanation

An IOACTION STOP command was entered for one or more devices that are not shared. An IOACTION STOP command is only valid for direct access storage devices (DASD) capable of being shared, or devices that support assign/unassign processing. In the message text:
dev,dev1-dev2
The device numbers of the ignored devices.

System action

The system ignores the listed devices.

Operator response

Use the IOACTION command only for recovery situations involving shared devices.

Source

Input/output supervisor (IOS)

Module

IOSVQRDV

Routing code

-

Descriptor code

4