Contact Us Contact Us

SCSI Persistent Reservation Utilities

  Software Depot
Electronic download
Frequently asked questions
Product details and specifications

SCSI Persistent Reservation Utilities Overview

SCSI Persistent Reservation Utilities (sg3_utils) is an open source utility package that has been ported to work with the HP-UX operating system. This software is distributed under the GPL version 2. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the licensing information provided with the package.

The sg3_utils package contains utilities that send SCSI commands to devices by using a SCSI command set. Apart from SCSI parallel interface (SPI) devices, the SCSI command set is used by ATAPI devices (CD/DVDs and tapes), USB mass storage devices, Fiber Channel disks, IEEE 1394 storage devices (that use the Serial Bus Protocol (SBP)), SAS, iSCSI and FCoE devices (amongst others).

The common set of commands is referred to as the SCSI Primary Commands (SPC) with SPC-3 being the most recent standard. More information regarding sg3_utils can be found at:

Additional Information

For information on sg3_utils, see SCSI Persistent Reservation Utilities Release Notes at

Additional product information
Product #: SCSI-PR-Utilites
Version: B.01.31.01
Software specification: SCSI-PR-Utilites_B.01.31.01_HP-UX_B.11.31_IA.depot