dasd-eckd.def9e6 <bus ID of the DASD>: Path <cssid>.<chpid> (pathmask <logical path mask>) is operational despite excessive IFCCs
Explanation
The threshold value for interface or channel control checks (IFCCs) for the
channel path was exceeded.
The channel path remains operational because the autodisable feature for
defective channel paths is not active.
Defective channel paths can adversely affect performance.
User response
Ensure that the cabling between the storage server and the mainframe
system is securely in place.
If you observe performance impacts, consider setting the channel path offline.
By default, the DASD device driver disables defective channel paths for you.
You can restore this default, for example, by writing '1' to the
path_autodisable sysfs attribute.
If the problem persists, report it to your support organization.