Section 8: administration and privileged commands
sg_prevent – send SCSI PREVENT ALLOW MEDIUM REMOVAL command Synopsis sg_prevent [–allow] [–help] [–prevent=PC] [–verbose] [–version] DEVICE Description Sends a SCSI PREVENT ALLOW MEDIUM REMOVAL command to DEVICE. The default action of this utility is to prevent the removing or ejecting of the medium from a drive. This is done by ignoring the SCSI START…
sg_persist – use SCSI PERSISTENT RESERVE command to access registrations and reservations Synopsis sg_persist [OPTIONS] DEVICE sg_persist [OPTIONS] –device=DEVICE sg_persist –help | –version Description This utility allows Persistent reservations and registrations to be queried and changed. Persistent reservations and registrations are queried by sub-commands (called "service actions" in SPC-4) of the SCSI PERSISTENT RESERVE IN…
sg_opcodes – report supported SCSI commands or task management functions Synopsis sg_opcodes [–alpha] [–help] [–hex] [–no-inquiry] [–opcode=OP] [–raw] [–rctd] [–repd] [–sa=SA] [–tmf] [–unsorted] [–verbose] [–version] DEVICE sg_opcodes [-a] [-n] [-o=OP] [-q] [-R] [-s=SA] [-t] [-u] [-v] [-V] [-?] DEVICE Description This utility sends a SCSI REPORT SUPPORTED OPERATION CODES or a REPORT SUPPORTED TASK MANAGEMENT…
sg_modes – reads mode pages with SCSI MODE SENSE command Synopsis sg_modes [–all] [–control=PC] [–dbd] [–dbout] [–examine] [–flexible] [–help] [–hex] [–list] [–llbaa] [–maxlen=LEN] [–page=PG[,SPG]] [–raw] [-R] [–six] [–verbose] [–version] [DEVICE] sg_modes [-6] [-a] [-A] [-c=PC] [-d] [-D] [-e] [-f] [-h] [-H] [-l] [-L] [-m=LEN] [-p=PG[,SPG]] [-r] [-subp=SPG] [-v] [-V] [-?] [DEVICE] Description This utility sends…
sg_map26 – map SCSI generic (sg) device to corresponding device names Synopsis sg_map26 [–dev_dir=DIR] [–given_is=0|1] [–help] [–result=0|1|2|3] [–symlink] [–verbose] [–version] DEVICE Description Maps a special file (block or char) associated with a SCSI device to the corresponding SCSI generic (sg) device, or vice versa. Can also be given a sysfs file, for example ‘/sys/block/sda’ or…
sg_map – displays mapping between Linux sg and other SCSI devices Synopsis sg_map [-a] [-h] [-i] [-n] [-scd] [-sd] [-sr] [-st] [-V] [-x] Description Sometimes it is difficult to determine which SCSI device a sg device name (e.g. /dev/sg0) refers to. This command loops through the sg devices and finds the corresponding SCSI disk, cdrom…
sg_luns – send SCSI REPORT LUNS command or decode given LUN Synopsis sg_luns [–decode] [–help] [–hex] [–linux] [–maxlen=LEN] [–quiet] [–raw] [–select=SR] [–verbose] [–version] DEVICE sg_luns –test=ALUN [–hex] [–verbose] Description In the first form shown in the SYNOPSIS this utility sends the SCSI REPORT LUNS command to the DEVICE and outputs the response. The response should…
sg_logs – access log pages with SCSI LOG SENSE command Synopsis sg_logs [–all] [–brief] [–control=PC] [–help] [–hex] [–list] [–maxlen=LEN] [–name] [–page=PG[,SPG]] [–paramp=PP] [–pcb] [–ppc] [–raw] [–reset] [–select] [–sp] [–temperature] [–transport] [–verbose] [–version] DEVICE sg_logs [-a] [-A] [-b] [-c=PC] [-h] [-H] [-l] [-L] [-m=LEN] [-n] [-p=PG[,SPG]] [-paramp=PP] [-pcb] [-ppc] [-r] [-select] [-sp] [-t] [-T] [-v] [-V]…
sg_inq – issue SCSI INQUIRY command, output and decode response Synopsis sg_inq [–ata] [–cmddt] [–descriptors] [–export] [–extended] [–help] [–hex] [–id] [–len=LEN] [–maxlen=LEN] [–page=PG] [–raw] [–vendor] [–verbose] [–version] [–vpd] DEVICE sg_inq [-36] [-a] [-A] [-b] [-c] [-cl] [-d] [-e] [-h] [-H] [-i] [-l=LEN] [-m] [-M] [-o=OPCODE_PG] [-p=VPD_PG] [-P] [-r] [-s] [-u] [-v] [-V] [-x] [-36] [-?]…
sg_ident – send SCSI REPORT/SET IDENTIFYING INFORMATION command Synopsis sg_ident [–ascii] [–clear] [–help] [–itype=IT] [–raw] [–set] [–verbose] [–version] DEVICE Description Send a SCSI REPORT IDENTIFYING INFORMATION or SET IDENTIFYING INFORMATION command to DEVICE. Prior to SPC-4 (revision 7) these commands were called REPORT DEVICE IDENTIFIER and SET DEVICE IDENTIFIER respectively. SCSI devices that support these…
sg_get_lba_status – send SCSI GET LBA STATUS command Synopsis sg_get_lba_status [–brief] [–help] [–hex] [–lba=LBA] [–maxlen=LEN] [–raw] [–verbose] [–version] DEVICE Description Send the SCSI GET LBA STATUS command to the DEVICE and outputs the response. This command was introduced in (draft) SBC-3 revision 20 and devices that support logical block provisioning should support this command. The…
sg_get_config – send SCSI GET CONFIGURATION command (MMC-4 +) Synopsis sg_get_config [–brief] [–current] [–help] [–hex] [–inner-hex] [–list] [–raw] [–readonly] [–rt=RT] [–starting=FC] [–verbose] [–version] DEVICE Description Sends a SCSI GET CONFIGURATION command to DEVICE and decodes the response. The response includes the features and profiles of the device. Typically these devices are CD, DVD, HD-DVD and…
sg_format – format or resize a SCSI disk (perhaps change its block size) Synopsis sg_format [–cmplst={0|1}] [–count=COUNT] [–dcrt] [–early] [–fmtpinfo=FPI] [–format] [–help] [–long] [–pfu=PFU] [–pie=PIE] [–pinfo] [–poll=PT] [–resize] [–rto_req] [–security] [–six] [–size=SIZE] [–verbose] [–version] [–wait] DEVICE Description Not all SCSI direct access devices need to be formatted and some have vendor specific formatting procedures. SCSI…
sg_emc_trespass – change ownership of SCSI LUN from another Service-Processor to this one Synopsis sg_emc_trespass [-d] [-hr] [-s] [-V] DEVICE Description sg_emc_trespass sends an EMC-specific Trespass Command to the DEVICE with the selected options. This Mode Select changes the ownership of the LUN of the device from another Service-Processor to the one the command was…
sg_decode_sense – decode SCSI sense data Synopsis sg_decode_sense [–binary=FN] [–file=FN] [–help] [–hex] [–nospace] [–status=SS] [–verbose] [–version] [–write=WFN] [H1 H2 H3 …] Description This utility takes SCSI sense data in binary or as a sequence of ASCII hexadecimal bytes and decodes it. The primary reference for the decoding is SPC-3 ANSI INCITS 408-2005 and the most…
sg_dd – copy data to and from files and devices, especially SCSI devices Synopsis sg_dd [bs=BS] [conv=CONV] [count=COUNT] [ibs=BS] [if=IFILE] [iflag=FLAGS] [obs=BS] [of=OFILE] [oflag=FLAGS] [seek=SEEK] [skip=SKIP] [–help] [–version] [blk_sgio={0|1}] [bpt=BPT] [cdbsz={6|10|12|16}] [coe={0|1|2|3}] [coe_limit=CL] [dio={0|1}] [odir={0|1}] [of2=OFILE2] [retries=RETR] [sync={0|1}] [time={0|1}] [verbose=VERB] [-V] Description Copy data to and from any files. Specialized for "files" that are Linux…
sg_copy_results – send SCSI RECEIVE COPY RESULTS command (XCOPY related) Synopsis sg_copy_results [–failed|–params|–receive|–status] [–help] [–hex] [–list_id=ID] [–verbose] [–version] [–xfer_len=BTL] DEVICE Description This utility is designed to query the status of the SCSI Extended Copy (XCOPY) facility (see SPC-3 revision 23 sections 6.3 and 6.17), present in some modern storage arrays. This utility sends a SCSI…
sg_compare_and_write – send the SCSI COMPARE AND WRITE command Synopsis sg_compare_and_write [–dpo] [–fua] [–fua_nv] [–help] –in=IF [–inw=WF] –lba=LBA [–num=NUM] [–quiet] [–timeout=TO] [–verbose] [–version] [–wrprotect=WP] [–xferlen=LEN] DEVICE Description Send the SCSI COMPARE AND WRITE command to DEVICE. This utility reads a compare buffer and a write buffer from either one or two files. If the –inw=WF…
sg3_utils – a package of utilities for sending SCSI commands Synopsis sg_* [–help] [–hex] [–maxlen=LEN] [–raw] [–verbose] [–version] [OTHER_OPTIONS] DEVICE Description sg3_utils is a package of utilities that send SCSI commands to the given DEVICE via a SCSI pass through interface provided by the host operating system. The names of all utilities start with "sg"…
sftpd_selinux – Security Enhanced Linux Policy for the sftpd processes Description Security-Enhanced Linux secures the sftpd processes via flexible mandatory access control. The sftpd processes execute with the sftpd_t SELinux type. You can check if you have these processes running by executing the ps command with the -Z qualifier. For example: ps -eZ | grep…