Backward Space Record = yesno
If Yes, the archive device supports the MTBSR ioctl to backspace records. If No, this call is not used and the device must be rewound and advanced forward to the desired position. Default is Yes for non random-access devices. This function if enabled is used at the end of a Volume after writing the end of file and any ANSI/IBM labels to determine whether or not the last block was written correctly. If you turn this function off, the test will not be done. This causes no harm as the re-read process is precautionary rather than required.
Backward Space File = yesno
If Yes, the archive device supports the MTBSF and MTBSF ioctls to backspace over an end of file mark and to the start of a file. If No, these calls are not used and the device must be rewound and advanced forward to the desired position. Default is Yes for non random-access devices.
Forward Space Record = yesno
If Yes, the archive device must support the MTFSR ioctl to forward space over records. If No, data must be read in order to advance the position on the device. Default is Yes for non random-access devices.
Forward Space File = yesno
If Yes, the archive device must support the MTFSF ioctl to forward space by file marks. If No, data must be read to advance the position on the device. Default is Yes for non random-access devices.
