dasd-eckd.f4346b <bus ID of the DASD>: The device reservation was lost
Explanation
This Linux instance has lost its reservation of the device to another
operating system instance. Depending on the reservation policy for the
device, I/O might be blocked until the other operating system instance
surrenders the reservation or all I/O requests might fail until the
device is reset.
User response
None, if this situation is handled by system automation software.
If this situation is not handled by automation, check the
last_known_reservation_state attribute of the device in sysfs.
If the value is 'lost', verify that the device is no longer reserved
by another operating system instance, then set the device offline and
online again. For any other value of the last_known_reservation_state
no action is required. I/O will resume when the device reservation is
surrendered by the other operating system instance.