SG_RAW(8)							     SG3_UTILS								 SG_RAW(8)

NAME

       sg_raw - sends an arbitrary SCSI command (with an optional data phase) to a device

SYNOPSIS

       sg_raw [OPTIONS] DEVICE CDB0 CDB1 ...

DESCRIPTION

       This  utility  sends an arbitrary SCSI command (between 6 and 16 bytes) to the DEVICE. For the optional data phase, data can either be read
       from a file and sent to the DEVICE or received from the DEVICE and then displayed or written to a file.

       The SCSI command may be between 6 and 16 bytes long. Each command byte is specified in plain hex format (00..FF) without a prefix  or  suf-
       fix. See EXAMPLES section below.

       The commands pass through a generic SCSI interface which is implemented for several operating systems including Linux, FreeBSD and Windows.

OPTIONS

       Arguments to long options are mandatory for short options as well.

       -b, --binary
	      Dump data in binary form, even when writing to stdout.

       -h, --help
	      Display usage information and exit.

       -i, --infile=IFILE
	      Read data from IFILE instead of stdin. This option is ignored if --send is not specified.

       -k, --skip=LEN
	      Skip the first LEN bytes of the input file or stream. This option is ignored if --send is not specified.

       -n, --nosense
	      Don't display SCSI Sense information.

       -o, --outfile=OFILE
	      Write data received from the DEVICE to OFILE. The data is written in binary. By default, data is dumped in hex format to stdout.	If
	      OFILE is '-' then data is dumped in binary to stdout.  This option is ignored if --request is not specified.

       -r, --request=RLEN
	      Expect to receive up to RLEN bytes of data from the DEVICE.  RLEN may be suffixed with 'k' to use kilobytes (1024 bytes) instead	of
	      bytes. This option and --send are mutually exclusive.

       -s, --send=SLEN
	      Read  SLEN  bytes  of  data,  either  from stdin or from a file, and send them to the DEVICE. This option and --request are mutually
	      exclusive.

       -t, --timeout=SEC
	      Wait up to SEC seconds for command completion (default: 20).  Note that if a command times out the operating  system  may  start	by
	      aborting the command and if that is unsuccessful it may attempt to reset the device.

       -v, --verbose
	      Increase level of verbosity. Can be used multiple times.

       -V, --version
	      Display version and license information and exit.

EXAMPLES

       sg_raw /dev/scd0 1b 00 00 00 02 00
	      Eject the medium in CD drive /dev/scd0.

       sg_raw -r 1k /dev/sg0 12 00 00 00 60 00
	      Perform an INQUIRY on /dev/sg0 and dump the response data (up to 1024 bytes) to stdout.

       sg_raw -s 512 -i i512.bin /dev/sda 3b 02 00 00 00 00 00 02 00 00
	      Showing  an  example  of	writing  512  bytes  to  a sector on a disk is a little dangerous. Instead this example will read i512.bin
	      (assumed to be 512 bytes long) and use the SCSI WRITE BUFFER command to send it to the "data" buffer (that is mode  2).  This  is  a
	      safe operation.

       sg_raw -r 512 -o o512.bin /dev/sda 3c 02 00 00 00 00 00 02 00 00
	      This  will  use  the  SCSI  READ BUFFER command to read 512 bytes from the "data" buffer (i.e. mode 2) then write it to the o512.bin
	      file.  When used in conjunction with the previous example, if both commands work then 'cmp i512.bin o512.bin' should show a match.

EXIT STATUS

       The exit status of sg_raw is 0 when it is successful. Otherwise see the sg3_utils(8) man page.

AUTHOR

       Written by Ingo van Lil

REPORTING BUGS

       Report bugs to <inguin at gmx dot de>.

COPYRIGHT

       Copyright (C) 2001-2008 Ingo van Lil
       This software is distributed under the GPL version 2. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A  PARTICULAR  PUR-
       POSE.

SEE ALSO

       sg_opcodes sg_vpd(sg3_utils), hdparm(hdparm), sgdiag(scsirastools)

sg3_utils-1.26							     May 2008								 SG_RAW(8)