utilities for devices using the SCSI command set
Most OSes have SCSI pass-through interfaces that enable user space programs
to send SCSI commands to a device and fetch the response. With SCSI to ATA
Translation (SAT) many ATA disks now can process SCSI commands. Typically
each utility in this package implements one SCSI command. See the draft
standards at www.t10.org for SCSI command definitions plus SAT. ATA
commands are defined in the draft standards at www.t13.org . For a mapping
between supported SCSI and ATA commands and utility names in this package
see the COVERAGE file.
README for sg3_utils
This package contains low level utilities for devices that use the SCSI
command set. Originally the SCSI command set was associated exclusively
with the SCSI Parallel Interface (SPI) transport. SPI has now almost
been completely replaced by the Serial Attached SCSI (SAS) transport which
iSCSI support for sg3-utils is available from external patches.
To build sg3-utils from sources and activate built-in iSCSI support
you need both sg3-utils and the external user-space iSCSI library hosted at :
This library provides a client library for accessing remote iSCSI
devices and also comes with patches to the sg3-utils source code
distribution to com
you can use sg_start to start (spin-up, 1) and stop (spin-down, 0) devices.
I also offers a parameter (-s) to send a synchronize cache command to a
device, so it should write back its internal buffers to the medium.
Be aware that the Linux SCSI subsystem at this time does not automatically
starts stopped devices, so stopping a device which is in use may have fatal
results for you.
So, you s
Building files in this directory depends on several files being already
built in the ../lib director
In order to save source code space, the files is this directory have
been removed (apart from the re
SCSI_LOGGING_LEVEL(8) SG3_UTILS SCSI_LOGGING_LEVEL(8)
SCSI_MANDAT(8) SG3_UTILS SCSI_MANDAT(8)
SCSI_READCAP(8) SG3_UTILS SCSI_READCAP(8)
scsi_readcap - d
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