Section 8: administration and privileged commands
sg_scan – scans sg devices (or SCSI/ATAPI/ATA devices) and prints results Synopsis sg_scan [-a] [-i] [-n] [-w] [-x] [DEVICE]* Description If no DEVICE names are given, sg_scan does a scan of the sg devices and outputs a line of information for each sg device that is currently bound to a SCSI device. If one or…
sg_sat_set_features – use ATA SET FEATURES command via a SCSI to ATA Translation (SAT) layer Synopsis sg_sat_set_features [–count=CO] [–ck_cond] [–feature=FEA] [–help] [–lba=LBA] [–len={16|12}] [–verbose] [–version] DEVICE Description This utility sends an ATA SET FEATURES command to the DEVICE. This command is used to change settings of ATA non-packet (i.e. disks) and packet devices (e.g. cd/dvd…
sg_sat_phy_event – use ATA READ LOG EXT via a SAT pass-through to fetch SATA phy event counters Synopsis sg_sat_phy_event [–ck_cond] [–extend] [–help] [–hex] [–ignore] [–len={16|12}] [–raw] [–reset] [–verbose] [–version] DEVICE Description This utility sends an ATA READ LOG EXT with the log page ("address") set to 11h to DEVICE and outputs the response. Log page…
sg_sat_identify – send ATA IDENTIFY DEVICE command via SCSI to ATA Translation (SAT) layer Synopsis sg_sat_identify [–ck_cond] [–extend] [–help] [–hex] [–indent] [–len={16|12}] [–packet] [–raw] [–verbose] [–version] DEVICE Description This utility sends either an ATA IDENTIFY DEVICE command or an ATA IDENTIFY PACKET DEVICE command to DEVICE and outputs the response. The devices that respond to…
sg_sanitize – remove all user data from disk with SCSI SANITIZE command Synopsis sg_sanitize [–ause] [–block] [–count=OC] [–crypto] [–early] [–fail] [–help] [–invert] [–ipl=LEN] [–overwrite] [–pattern=PF] [–quick] [–test=TE] [–verbose] [–version] [–wait] DEVICE Description This utility invokes the SCSI SANITIZE command. This command was first introduced in the SBC-3 revision 27 draft. The purpose of the sanitize…
sg_safte – access SCSI Accessed Fault-Tolerant Enclosure (SAF-TE) device Synopsis sg_safte [–config] [–devstatus] [–encstatus] [–flags] [–help] [–hex] [–insertions] [–raw] [–usage] [–verbose] [–version] DEVICE Description Fetches enclosure status (via a SCSI READ BUFFER command). The DEVICE should be a SAF-TE device which may be a storage array controller (INQUIRY peripheral device type 0xc) or a generic…
sg_rtpg – send SCSI REPORT TARGET PORT GROUPS command Synopsis sg_rtpg [–decode] [–help] [–hex] [–raw] [–verbose] [–version] DEVICE Description Send a SCSI REPORT TARGET PORT GROUPS command to DEVICE and outputs the response. Target port group access is described in SPC-3 found at www.t10.org in section 5.8 (in rev 21c dated 2005/1/15). The Report Target…
sg_rmsn – send SCSI READ MEDIA SERIAL NUMBER command Synopsis sg_rmsn [–help] [–raw] [–readonly] [–verbose] [–version] DEVICE Description Send a SCSI READ MEDIA SERIAL NUMBER command to DEVICE and outputs the response. This command is described in SPC-3 found at www.t10.org . It was originally added to SPC-3 in revision 11 (2003/2/12). It is not…
sg_reset – sends SCSI device, target, bus or host reset; or checks reset state Synopsis sg_reset [–bus] [–device] [–help] [–host] [–no-esc] [–target] [–verbose] [–version] DEVICE Description The sg_reset utility with no options (just a DEVICE) reports on the reset state (e.g. if a reset is underway) of the DEVICE. When given a –device, –target, –bus…
sg_requests – send one or more SCSI REQUEST SENSE commands Synopsis sg_requests [–desc] [–help] [–hex] [–maxlen=LEN] [–num=NUM] [–progress] [–raw] [–status] [–time] [–verbose] [–version] DEVICE Description Send SCSI REQUEST SENSE command to DEVICE and output the parameter data response which is expected to be in sense data format. Both fixed and descriptor sense data formats are…
sg_reassign – send SCSI REASSIGN BLOCKS command Synopsis sg_reassign [–address=A,A…] [–dummy] [–eight=0|1] [–grown] [–help] [–longlist=0|1] [–primary] [–verbose] [–version] DEVICE Description Send a SCSI REASSIGN BLOCKS command to DEVICE. Alternatively this utility can find the number of element in a "grown" or "primary" defect list with a SCSI READ DEFECT DATA (10) command. These SCSI commands…
sg_readcap – send SCSI READ CAPACITY command Synopsis sg_readcap [–16] [–brief] [–help] [–hex] [–lba=LBA] [–long] [–pmi] [–raw] [–verbose] [–version] DEVICE sg_readcap [-16] [-b] [-h] [-H] [-lba=LBA] [-pmi] [-r] [-v] [-V] DEVICE Description The normal action of the SCSI READ CAPACITY command is to fetch the number of blocks (and block size) from the DEVICE. The…
sg_read_long – send a SCSI READ LONG command Synopsis sg_read_long [–16] [–correct] [–help] [–lba=LBA] [–out=OF] [–pblock] [–readonly] [–verbose] [–version] [–xfer_len=BTL] DEVICE Description Send SCSI READ LONG command to DEVICE. The read buffer is output in hex and ASCII to stdout or placed in a file. Note that the data returned includes the logical block data…
sg_read_buffer – send SCSI READ BUFFER command Synopsis sg_read_buffer [–help] [–hex] [–id=ID] [–length=LEN] [–mode=MO] [–offset=OFF] [–raw] [–verbose] [–version] DEVICE Description Sends a SCSI READ BUFFER command to the DEVICE, and if there is a response either decodes it, prints it in hexadecimal or sends it in binary to stdout. If a response is received for…
sg_read_block_limits – send SCSI READ BLOCK LIMITS command Synopsis sg_read_block_limits [–help] [–hex] [–raw] [–verbose] [–version] DEVICE Description Send a SCSI READ BLOCK LIMITS command to DEVICE and outputs the response. This command is defined for tape (drives) and its description is found in the SSC documents at http://www.t10.org . Options Arguments to long options are…
sg_read – read multiple blocks of data, optionally with SCSI READ commands Synopsis sg_read [blk_sgio=0|1] [bpt=BPT] [bs=BS] [cdbsz=6|10|12|16] count=COUNT [dio=0|1] [dpo=0|1] [fua=0|1] if=IFILE [mmap=0|1] [no_dxfer=0|1] [odir=0|1] [skip=SKIP] [time=TI] [verbose=VERB] [–help] [–version] Description Read data from a Linux SCSI generic (sg) device, a block device or a normal file with each read command issued to the…
sg_rdac – display or modify SCSI RDAC Redundant Controller mode page Synopsis sg_rdac [-a] [-f=LUN] [-v] [-V] DEVICE Description sg_rdac displays or modifies the RDAC controller settings via the Redundant Controller mode page (0x2C). When modifying the settings it allows to transfer the ownership of individual drives to the controller the command was received on….
sg_rbuf – reads data using SCSI READ BUFFER command Synopsis sg_rbuf [–buffer=EACH] [–dio] [–help] [–mmap] [–quick] [–size=OVERALL] [–test] [–verbose] [–version] DEVICE sg_rbuf [-b=EACH_KIB] [-d] [-m] [-q] [-s=OVERALL_MIB] [-t] [-v] [-V] DEVICE Description This command reads data with the SCSI READ BUFFER command and then discards it. Typically the data being read is from a disk’s…
sg_raw – send arbitrary SCSI command to a device Synopsis sg_raw [OPTIONS] DEVICE CDB0 CDB1 … Description This utility sends an arbitrary SCSI command (between 6 and 256 bytes) to the DEVICE. There may be no associated data transfer; or data may be read from a file and sent to the DEVICE; or data may…