dasd.52d5fe <bus ID of the DASD>: cqr <pointer to request> transport error

Explanation

A channel queued request (cqr) failed because the connection to the device was lost and the 'failfast' flag is set for the request. This flag can result from, for example:
  • A software layer above the DASD device driver; for example, in a host based mirroring setup.
  • Value 1 for the failfast sysfs attribute of the DASD. This setting applies to all requests on the DASD.

User response

Ensure that each channel path to the device has been set up correctly and that the related physical cable connections are in place. If the 'failfast' attribute of the DASD is set to 1, verify that this setting is intentional and change it to 0 if required.

Severity

Error