Logical Block Protection

This ioctl queries whether the drive can support this feature, what lbp method is used, and where the protection information is included.

The lbp_capable field indicates that the drive has the logical block protection (LBP) capability or not. The lbp_method field is shown if LBP is enabled and what the protection method is. The LBP information length is shown in the lbp_info_length field. The fields of lbp_w, lbp_r, and rbdp present that the protection information is included in write, read, or recover buffer data. The rbdp field is not supported for the LTO drive.

This ioctl enables or disables Logical Block Protection, sets up what method is used, and where the protection information is included.

The lbp_capable field is ignored in this ioctl by the tape driver. If the lbp_method field is 0 (LBP_DISABLE), all other fields are ignored and not used. When the lbp_method field is set to a valid non-zero method, all other fields are used to specify the setup for LBP.