/usr/bin/sg_write_x

Usage:
sg_write_x [--16] [--32] [--app-tag=AT] [--atomic=AB] [--bmop=OP,PGP]
           [--bs=BS] [--combined=DOF] [--dld=DLD] [--dpo] [--dry-run]
           [--fua] [--generation=EOG,NOG] [--grpnum=GN] [--help] --in=IF
           [--lba=LBA,LBA...] [--normal] [--num=NUM,NUM...]
           [--offset=OFF[,DLEN]] [--or] [--quiet] [--ref-tag=RT]
           [--same=NDOB] [--scat-file=SF] [--scat-raw] [--scattered=RD]
           [--stream=ID] [--strict] [--tag-mask=TM] [--timeout=TO]
           [--unmap=U_A] [--verbose] [--version] [--wrprotect=WRP]
           DEVICE
  where:
    --16|-6            send 16 byte cdb variant (this is default action)
    --32|-3            send 32 byte cdb variant of command (def: 16 byte)
    --app-tag=AT|-a AT    expected application tag field (def: 0xffff)
    --atomic=AB|-A AB    send WRITE ATOMIC command with AB being its
                         Atomic Boundary field (0 to 0xffff)
    --bmop=OP,PGP|-p OP,PGP    set BMOP field to OP and  Previous
                               Generation Processing field to PGP
    --bs=BS|-b BS      block size (def: use READ CAPACITY), if power of
                       2: logical block size, otherwise: actual block size
    --combined=DOF|-c DOF    scatter list and data combined for WRITE
                             SCATTERED, data starting at offset DOF which
                             has units of sizeof(LB+PI); sizeof(PI)=8n or 0
    --dld=DLD|-D DLD    set duration limit descriptor (dld) bits (def: 0)
    --dpo|-d           set DPO (disable page out) field (def: clear)
    --dry-run|-x       exit just before sending SCSI write command
    --fua|-f           set FUA (force unit access) field (def: clear)
    --generation=EOG,NOG    set Expected ORWgeneration field to EOG
        |-G EOG,NOG         and New ORWgeneration field to NOG
    --grpnum=GN|-g GN    GN is group number field (def: 0, range: 0 to 63)
    --help|-h          use multiple times for different usage messages
    --in=IF|-i IF      IF is file to fetch NUM blocks of data from.
                       Blocks written to DEVICE. 1 or no blocks read
                       in the case of WRITE SAME
    --lba=LBA,LBA...     list of LBAs (Logical Block Addresses) to start
        |-l LBA,LBA...   writes (def: --lba=0). Alternative is --scat-file=SF
    --normal|-N        send 'normal' WRITE command (default when no other
                       command option given)
    --num=NUM,NUM...     NUM is number of logical blocks to write (def:
        |-n NUM,NUM...   --num=0). Number of block sent is sum of NUMs
    --offset=OFF[,DLEN]    OFF is byte offset in IF to start reading from
        |-o OFF[,DLEN]     (def: 0), then read DLEN bytes(def: rest of IF)
    --or|-O            send ORWRITE command
    --quiet|-Q         suppress some informational messages
    --ref-tag=RT|-r RT     expected reference tag field (def: 0xffffffff)
    --same=NDOB|-M NDOB    send WRITE SAME command. NDOB (no data out buffer)
                           can be either 0 (do send buffer) or 1 (don't)
    --scat-file=SF|-q SF    file containing LBA, NUM pairs, see manpage
    --scat-raw|-R      read --scat_file=SF as binary (def: ASCII hex)
    --scattered=RD|-S RD    send WRITE SCATTERED command with RD range
                            descriptors (RD can be 0 when --combined= given)
    --stream=ID|-T ID    send WRITE STREAM command with its STR_ID
                         field set to ID
    --strict|-s        exit if read less than requested from IF ;
                       require variety of WRITE to be given as option
    --tag-mask=TM|-t TM    tag mask field (def: 0xffff)
    --timeout=TO|-I TO    command timeout (unit: seconds) (def: 120)
    --unmap=U_A|-u U_A    0 clears both UNMAP and ANCHOR bits (default),
                          1 sets UNMAP, 2 sets ANCHOR, 3 sets both
    --verbose|-v       increase verbosity
    --version|-V       print version string then exit
    --wrprotect=WPR|-w WPR    WPR is the WRPROTECT field value (def: 0)

Performs a SCSI WRITE (normal), ORWRITE, WRITE ATOMIC, WRITE SAME, WRITE
SCATTERED, or WRITE STREAM command. A 16 or 32 byte cdb variant can be
selected. The --in=IF option (data to be written) is required apart from
when --same=1 (i.e. when NDOB is set). If no WRITE variant option is given
then, in the absence of --strict, a (normal) WRITE is performed. Only WRITE
SCATTERED uses multiple LBAs and NUMs, or a SF file with multiple pairs.
The --num=NUM field defaults to 0 (do nothing) for safety. Using '-h'
multiple times shows the applicable options for each command variant.