CKF0027 Invalid DSCB FMTID=X'xx' on type device dev volser CCHHR=0000000000 DSN=dsname
Explanation
The VTOC for the indicated volume contained an invalid DSCB, with format X'xx'. The only valid types are X'F0' .. X'F6'. The DSCB record is included in the CKFREEZE file, but will not used. The dsname reported is the data set name field (key area) of the DSCB in error. This has no consequences for MVS™ if the DSCB is not in use according to the space map.
Severity
04