ERROR ON CHANNEL PATHS - STOP I/O REQUESTS FROM SHARING SYSTEMS
OR USE IOACTION STOP, DEV=(xxxx) TO STOP I/O TO
SHARED DEVICES {—SINGLE CHANNEL PATH (chp)
BEING RECOVERED| —MULTIPLE CHANNEL PATHS BEING RECOVERED }
Explanation
An error occurred on the specified channel path,
which has reserved devices (such as DASD) or assigned devices (such
as tapes).
In the message text:
- chp
- The channel path identifier (CHPID).
System action
The system does not use the channel path until
recovery is complete. Recovery waits until the operator restarts the
system. The system issues message IOS204E (or IOS201E) when the I/O
on other processors that share devices can be started.
Note: IOS062E
is issued via disabled console communication (DCCF) processing when
a DASD device has been found on the channel path undergoing recovery,
or message IOS063E was issued but a response was not received within
a 3 minute interval.
Operator response
Do the following:
- Attempt to prevent the other processors that share devices from
initiating I/O by entering the IOACTION STOP command. If the IOACTION
STOP command fails, or multiple channel paths are being recovered,
sharing processors need to be stopped to prevent I/O activity to
the shared devices.
- After the IOACTION STOP command is successful or sharing processors
have been stopped, restart the system in error.
For more information, see the Reconfiguring
the System Directly and IOACTION Command of z/OS MVS System Commands. Source
Input/output supervisor (IOS)
Module
Routing code
Descriptor code