The Linux Manuals (man pages) document is an important part of Linux documents. Linux Manuals are organized as several sections. Each section has a group of commands for a specific area in Linux usage, administration or development.
sg_vpd – fetch Vital Product Data (VPD) pages via a SCSI INQUIRY command Synopsis sg_vpd [–enumerate] [–help] [–hex] [–ident] [–long] [–maxlen=LEN] [–page=PG] [–quiet] [–raw] [–verbose] [–version] DEVICE Description This utility fetches a Vital Product Data page and decodes it or outputs it in ASCII hexadecimal or binary. VPD pages are fetched with a SCSI INQUIRY…
sg_verify – invoke SCSI VERIFY command(s) on a block device Synopsis sg_verify [–16] [–bpc=BPC] [–count=COUNT] [–dpo] [–ebytchk=BCH] [–group=GN] [–help] [–in=IF] [–lba=LBA] [–ndo=NDO] [–quiet] [–readonly] [–verbose] [–version] [–vrprotect=VRP] DEVICE Description Sends one or more SCSI VERIFY (10 or 16) commands to DEVICE. These SCSI commands are defined in the SBC-2 (draft) standard at http://www.t10.org and SBC-3…
sg_unmap – send SCSI UNMAP command (known as ‘trim’ in ATA specs) Synopsis sg_unmap [–anchor] [–grpnum=GN] [–help] [–in=FILE] [–lba=LBA,LBA…] [–num=NUM,NUM…] [–timeout=TO] [–verbose] [–version] DEVICE Description Send a SCSI UNMAP command to DEVICE to unmap one or more logical blocks. This command was introduced in SBC-3 revision 18 under the broad heading of "logical block provisioning"….
sg_turs – send one or more SCSI TEST UNIT READY commands Synopsis sg_turs [–help] [–number=NUM] [–progress] [–time] [–verbose] [–version] DEVICE sg_turs [-n=NUM] [-p] [-t] [-v] [-V] DEVICE Description This utility sends one or more SCSI TEST UNIT READY commands to the DEVICE. This may be useful for timing the per command overhead. Note that TEST…
sg_test_rwbuf – test a SCSI host adapter by issuing dummy writes and reads Synopsis sg_test_rwbuf [–addrd=AR] [–addwr=AW] [–help] [–quick] –size=SZ [–times=NUM] [–verbose] [–version] DEVICE or an older deprecated format sg_test_rwbuf DEVICE SZ [AW] [AR] Description sg_test_rwbuf writes and reads back SZ bytes to the internal buffer of DEVICE (e.g. /dev/sda or /dev/sg0). A pseudo random…
sg_sync – send SCSI SYNCHRONIZE CACHE command Synopsis sg_sync [–16] [–count=COUNT] [–group=GN] [–help] [–immed] [–lba=LBA] [–sync-nv] [–timeout=SECS] [–verbose] [–version] DEVICE Description Send SYNCHRONIZE CACHE(10) or SYNCHRONIZE CACHE(16) command to DEVICE. These commands are defined for SCSI block devices (see SBC-3). If successful these commands make sure that any blocks whose latest versions are held in…
sg_stpg – send SCSI SET TARGET PORT GROUPS command Synopsis sg_stpg [–active] [–help] [–hex] [–offline] [–optimized] [–raw] [–standby] [–state=S,S…] [–tp=P,P…] [–unavailable] [–verbose] [–version] DEVICE Description Send a SCSI SET TARGET PORT GROUPS command to DEVICE. This utility has different modes depending on whether the –tp= option is given. If –tp= is given then the SET…
sg_start – send SCSI START STOP UNIT command: start, stop, load or eject medium Synopsis sg_start [0] [1] [–eject] [–help] [–fl=FL] [–immed] [–load] [–loej] [–mod=PC_MOD] [–noflush] [–pc=PC] [–readonly] [–start] [–stop] [–verbose] [–version] DEVICE sg_start [–eject] [–fl=FL] [-i] [–imm=0|1] [–load] [–loej] [–mod=PC_MOD] [–noflush] [–pc=PC] [-r] [–start] [–stop] [-v] [-V] [0|1] DEVICE Description sg_start sends a SCSI…
sg_ses – access a SCSI Enclosure Services (SES) device Synopsis sg_ses [–byte1=B1] [–clear=STR] [–control] [–data=H,H…] [–descriptor=DN] [–enumerate] [–filter] [–get=STR] [–help] [–hex] [–index=IIA | –index=TIA,II] [–inner-hex] [–join] [–list] [–nickname=SEN] [–nickid=SEID] [–page=PG] [–raw] [–set=STR] [–status] [–verbose] [–version] DEVICE Description Fetches management information from a SCSI Enclosure Service (SES) device. This utility can also modify the state of…
sg_senddiag – performs a SCSI SEND DIAGNOSTIC command Synopsis sg_senddiag [–doff] [–extdur] [–help] [–hex] [–list] [–pf] [–raw=H,H…] [–raw=-] [–selftest=ST] [–test] [–uoff] [–verbose] [–version] DEVICE sg_senddiag [-doff] [-e] [-h] [-H] [-l] [-pf] [-raw=H,H…] [-raw=-] [-s=ST] [-t] [-uoff] [-v] [-V] [-?] DEVICE Description This utility sends a SCSI SEND DIAGNOSTIC command to the DEVICE. It can issue…
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…