unrecoverable error occurred during aa...aa processing. reason code=bb...bb

aa...aa: Processing during which an error occurred.

OPEN: Open processing

FSTAT: File information obtaining processing

STATFS: File system information collection processing

READ/UREAD: Input processing

RSEEK: Positioning processing

CLOSE: Close processing

PUT/WRITE: Output processing

DELETE: Delete processing

CREATE: Physical file allocation processing

MLF_CREATE: Catalog file allocation processing

MLF_GET: Catalog file information collection processing

UNMULTI: Catalog file deletion processing

bb...bb: Abnormal processing code

S: Stops command processing.

O: Contact the maintenance personnel.

Countermeasure: Investigate the command usage and execution environment.