IOS283I

Explanation
The Control Unit Initiated Reconfiguration (C.U.I.R.)
service attempted to vary CHPID xx to device dev offline
to quiesce the path or online to resume the path, but the system rejected
the vary request.
In the message text: xx
The channel path identifier.
dev
The device number of the specified device.
text
The reason the vary command was rejected, as follows: LAST PATH TO DEVICE
C.U.I.R. attempted to vary the path offline, but this is the last
path to the device, and C.U.I.R. cannot vary the last path to a device
offline.
PATH DOES NOT EXIST
C.U.I.R. attempted to vary the path online or offline, but the
path does not exist.
PATH RESERVED
C.U.I.R. attempted to vary the path online of offline, but the
path or the device was reserved.
DEVICE CANNOT BE ACCESSED
C.U.I.R. attempted to vary the path online or offline, but the
device is in a permanent error state and cannot be accessed.
UCB FOR DEVICE NOT CONNECTED
C.U.I.R. attempted to vary the path online, but the specified
device is not connected to a subchannel.
I/O TIMED OUT DURING PATH VALIDATION
C.U.I.R. attempted to vary the path online, but the I/O issued
to bring the desired path online has timed out.  There is a probable
hardware error on the specified device or on the control unit it is
attached to.
VARY COMMAND PROCESSOR FAILED
C.U.I.R. attempted to vary the path online or offline, but the
VARY command processor encountered an unrecoverable internal error.
PATH NOT OPERATIONAL
C.U.I.R. attempted to vary the path online or offline, but the
path is not functioning or the specified device is in a permanent
error state.

System action
The system rejects the C.U.I.R. vary request.
 System processing continues.

Operator response
For all texts, notify the IBM® service representative who initiated
the reconfiguration request. Further action depends on the value of text,
as follows: LAST PATH TO DEVICE
Do one of the following: Vary another available path online to the device so
that C.U.I.R. can vary the path(dev,xx) offline.
Explicitly vary path(dev,xx) offline
unconditionally.  After the error is corrected, the request may be
re-initiated by the service representative. Note: Varying the path
unconditionally will take the device offline.

PATH DOES NOT EXIST
Contact the IBM Support
Center.
PATH RESERVED
The device might be reserved by one or more jobs.  To release
the device, cancel the jobs that have the device reserved, or wait
for these jobs to complete.  The service representative can reinitiate
the request after the device has been released.
DEVICE CANNOT BE ACCESSED
Contact the IBM Support
Center.
UCB FOR DEVICE NOT CONNECTED
Contact the IBM Support
Center.
I/O TIMED OUT DURING PATH VALIDATION
There is a probable hardware error on device dev or
on the control unit to which it is attached.  Contact the IBM Support Center.
VARY COMMAND PROCESSOR FAILED
The service representative should retry the request.  If the request
fails again, contact the IBM Support
Center.
PATH NOT OPERATIONAL
Ensure that path(dev,xx) is operational, that
power is up on the device, and that all switches are enabled.  Then
have the service representative retry the request.  If the request
fails again, contact the IBM Support
Center.

Source
Input/output supervisor (IOS)

Module
IEEVPTHR

Routing code
Note 13

Descriptor code
4