dasd-eckd.f546ed `<bus ID of the DASD>`: Detecting the maximum data size for zHPF requests failed (rc=`<return code>`) for a new path `<path mask>`

Explanation
High Performance FICON (zHPF) requests are limited to a hardware-dependent
maximum data size. A command to detect this size for
a new path returned an error. The new path will not be used for I/O.

User response
Set the new path offline and online again to repeat the path verification.
Alternatively, set the device offline and online again to
verify all available paths for this device.
If this problem persists, gather Linux debug data and report the problem
to your support organization.

Severity
Warning

dasd-eckd.f546ed <bus ID of the DASD>: Detecting the maximum data size for zHPF requests failed (rc=<return code>) for a new path <path mask>

Explanation

User response

Severity

dasd-eckd.f546ed `<bus ID of the DASD>`: Detecting the maximum data size for zHPF requests failed (rc=`<return code>`) for a new path `<path mask>`