/BAD_BLOCKS[=LIST] Adds the specified bad blocks to the detected bad block file (DBBF). If the /BAD_BLOCK qualifier is specified along with the /EXERCISE qualifier, the medium is tested once the bad blocks are added to the DBBF. If you do not specify a value for the /BAD_BLOCK qualifier, you are prompted as follows: BAD_BLOCKS = In prompt mode, BAD reports any duplicate bad blocks. Qualifier Value List Specifies the bad block locations to be added to the DBBF. Valid codes for specifying bad block locations are: Code Meaning LBN Specifies the logical block number (LBN) of a single bad block. LBN:count Specifies a range of contiguous bad blocks starting at the logical block number (LBN) and continuing for "count" blocks. SEC.TRK.CYL Specifies the physical disk address (sector, track, and cylinder) of a single bad sector. This code is valid only for last track devices. SEC.TRK.CYL:count Specifies a range of bad sectors starting at the specified physical disk address (sector, track, and cylinder) and continuing for "count" sectors. This code is valid only for last track devices. You can specify these formats in any integer combination or radix combination. Note The term "block" denotes a standard unit of 512 bytes, whereas the term "sector" denotes the physical size of the device sector, which is not always the same for all devices. For example, an RL02 has a sector size of 256 bytes, while an RK07 has a standard sector size of 512 bytes.