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 replies to
message IOS206A. The system issues message IOS204E (or IOS201E) when
the I/O on other processors that share devices can be started.
The
system issues message IOS206A to wait for the operator reply. Once
replied to, messages IOS063E and IOS206A are deleted using the DOM
macro, and processing continues. If the IOS063E/IOS206A message combination
is not replied to within 3 minutes, message IOS062E is issued via
disabled console communication (DCCF) processing.
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, reply to the message to continue.
Source
Input/output supervisor (IOS)
Module
Routing code
Descriptor code