IEE734I
dev NOW UNLOADED [ - DEVICE IS BOXED]

Explanation

In response to an UNLOAD command, the system unloaded a volume from a device. In the message text:
dev
The device number of the device.
DEVICE IS BOXED
The device was boxed because of:
  • A hardware I/O error
  • VARY dev,OFFLINE,FORCE command processing
  • VARY CH(x),OFFLINE,FORCE command processing
When a device is boxed, these events occur:
  • I/O on the device ends.
  • Any new I/O requests result in permanent I/O errors.
  • The system does no new allocations for the device.
  • If the device was online, it is marked pending offline. A pending offline device goes offline when these conditions occur, in this order:
    1. The system no longer allocates the device to any job.
    2. Allocation can get the necessary resources to process the request.

    If the device was offline, it remains offline.

System action

Processing continues.

Source

Master scheduler

Module

IEEMB813

Routing code

-

Descriptor code

5