Explanation
The operator entered a command to vary a device
or path online. While the system was validating the path, an input/output
(I/O) operation occurred along the path. The I/O operation timed
out.
The system could not verify the path. Possible causes include
but are not limited to the following: - The device is shared and is reserved by a system other than the
processing system.
- A hardware malfunction has occurred that causes the device to
appear busy.
System action
The system does not vary the path or device online.
Operator response
Enter the VARY command again. If the error
occurs again, look for a reserve held on the device by a sharing system.
If one exists, wait for the reserve to be released on the sharing
system before trying the VARY command again. If the device is not
reserved on a sharing system, contact hardware support.
Source
Input/output supervisor (IOS)
Module
Routing code
Descriptor code