IOS077E
IOS1077E devn,chp,jobname,text

Explanation

text is one of the following:
  • MISSING CHANNEL AND DEVICE END
  • START PENDING
  • IDLE WITH WORK QUEUED
  • HALT SUBCHANNEL INTERRUPT MISSING
  • CLEAR SUBCHANNEL INTERRUPT MISSING
  • HYPERSWAP INITIATED TIMEOUT

The system found a condition that existed for longer time than the acceptable time defined by the installation.

This message indicates a recurring condition that message IOS071I previously indicated. The system did not reset the device.

In the message text:
dev
The device number. The device number is prefixed by the subchannel set identifier when appropriate.
chp
The channel path identifier (CHPID) of the path with the missing channel end, device end, or both. This path is the last path to be used by the subchannel. This field contains asterisks when there is no channel path associated with the missing interruption, or when the last path used mask (LPUM) is zero.
jobname
The name of the job associated with the device.
MISSING CHANNEL AND DEVICE END
MISSING DEVICE END
A hardware error occurred.
START PENDING
One of the following occurred:
  • In a loosely coupled multiprocessing complex, another processor reserved the device for longer than the time limit specified by the installation.
  • A hardware error. The channel has an I/O request to process. The device is not active or it is busy on another channel path interface.
IDLE WITH WORK QUEUED
A hardware or software error occurred. The system sends work to the device, but the channel has no active I/O requests.
HALT SUBCHANNEL INTERRUPT MISSING
A hardware error occurred.
CLEAR SUBCHANNEL INTERRUPT MISSING
A recurring missing clear subchannel interrupt has occurred. See description in IOS076E for missing clear subchannel interrupts.
HYPERSWAP INITIATED TIMEOUT
A HyperSwap® was in progress. MIH detects this condition and immediately times out any active I/O for any device being swapped. The I/O request is cancelled and requeued for later execution once the swap is complete.

System action

The system continues to issue the Clear Subchannel (CSCH) instruction. The system also issues message IOS075E.

Operator response

Depending on the message text, do one of the following:
MISSING DEVICE END
Do the following:
  • Check the device for hardware problems. Look for the SELECT light on for a tape drive. Check if the SELECT LOCK is on for a disk device. Check for proper connections to control and switching units.
  • If you just finished rewinding a tape or mounting a volume, enter a VARY dev,ONLINE command to generate a simulated device end. Do not issue the VARY dev,ONLINE command under other circumstances; it could damage data on the device.
  • If you did not just finish rewinding a tape or mounting a volume, cancel the jobs that are using the device.
START PENDING
Do the following:
  • Determine whether the affected devices are reserved for the failing system.
  • Perform the recovery procedures defined by your installation.
    Note: If no devices are reserved for the failing system, resetting the reserves may cause integrity problems.
  • If the system is in a check stop state or restartable wait state, initiate an interface reset from the system console of the nonoperational system.
  • If the interface reset is unsuccessful, initiate a system reset from the system console of the nonoperational system.
  • Notify the system programmer.
IDLE WITH WORK QUEUED
If the system issued message IOS075E, notify the system programmer.
HYPERSWAP INITIATED TIMEOUT
A HyperSwap is in progress. No action is necessary.

For other values in the message text, contact hardware support.

System programmer response

Search problem reporting databases for a fix for the problem. If no fix exists, contact the IBM® Support Center.

Source

Input/output supervisor (IOS)

Module

IOSRMIHP

Routing code

2,5,6,7,10,11

Descriptor code

3

Parent topic: IOS messages