HP BACKCOPY Reference Manual page 260

Cause. A tape mount error was discovered during a labeled tape operation.
Effect. BACKCOPY, BACKUP, or RESTORE tries to recover from the error until the operation succeeds
or until a file-system error occurs. The error number is one of:
120, the data parity error, which often indicates that the tape drive needs cleaning or that
the tape is unusable
190, undefined device error
Recovery. If the error number is 120, clean the tape drive or try mounting a different tape. If the
error number is 190, mount the tape on a different tape drive.
8150
The data read from both parallel copies did not match.
Cause. The data records read from each parallel copy during tape verification were not equal.
The checksums and tape sequence numbers for each record were correct, yet the data was not
the same.
Effect. BACKUP terminates.
Recovery. Contact your service provider and provide:
The information in this message
Description of the problem and accompanying symptoms
Supporting documentation such as Event Management Service (EMS) logs, trace files, and a
processor dump, if applicable
If your operation procedures require contacting the GCSC, add your system number and the
numbers and versions of all related products.
8151
Premature end of tape.
Cause. The end of tape marker is very close to the beginning of tape marker or the tape drive is
faulty.
Effect. BACKUP terminates.
Recovery. Use a longer tape or check the tape drive as appropriate.
8152
Tape density selection not supported.
Cause. The DENSITY parameter was specified and the tape drive does not support programmatic
density selection.
Effect. BACKUP continues.
Recovery. To use this parameter, use a drive capable of programmatic density selection.
8153
Tape streaming selection not supported.
Cause. The TAPEMODE streaming parameter was specified and the tape drive does not support
streaming.
260 BACKCOPY, BACKUP, and RESTORE Messages