sg_emc_trespass(8) [debian man page]

SG_EMC_TRESPASS(8)						     SG3_UTILS							SG_EMC_TRESPASS(8)

NAME

       sg_emc_trespass - Changes ownership of a 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 received on.

OPTIONS

       Arguments to long options are mandatory for short options as well.

       -d     outputs some extra debug information associated with executing this command

       -hr    Sets the 'Honor Reservation' bit in the command. If set, the trespass will only succeed to change the ownership from the Peer SP	if
	      the Peer SP does not have an outstanding SCSI reservation for the LUN. By default, the reservation state will be ignored.

       -s     Send the short version of the trespass command instead of the long version. The short version is supported on the EMC FC5300, FC4500
	      and FC4700. The long version (default) is supported on the CLARiiON CX and AX family arrays.

       -V     print out version string then exit.

       In the 2.4 series of Linux kernels the DEVICE must be a SCSI generic (sg) device. In the 2.6 series block devices (e.g. SCSI disks and  DVD
       drives) can also be specified. For example "sg_start 0 /dev/sda" will work in the 2.6 series kernels.

EXIT STATUS

       The exit status of sg_emc_trespass is 0 when it is successful. Otherwise see the sg3_utils(8) man page.

AUTHOR

       Written by Lars Marowsky-Bree, based on sg_start.

REPORTING BUGS

       Report bugs to <dgilbert at interlog dot com>.

COPYRIGHT

       Copyright (C) 2004 Lars Marowsky-Bree, Douglas Gilbert.
       This  software  is distributed under the GPL version 2. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PUR-
       POSE.

sg3_utils-1.23							   January 2007 						SG_EMC_TRESPASS(8)

SG_PREVENT(8)							     SG3_UTILS							     SG_PREVENT(8)

NAME

       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 STOP UNIT command (see sg_start) and ignoring  the  eject  button  on  the
       drive  when  the  user presses it. Drives that hold removable disks, tape cartridges or cd/dvd media typically implement this command.  The
       definition of the "prevent" codes for this command differ between disks and tapes (covered by SBC-3 and SSC-3) and cd/dvd  drives  (covered
       by MMC-5). The "prevent codes" described here are from MMC-5.

OPTIONS

       Arguments to long options are mandatory for short options as well.

       -a, --allow
	      allow  medium  removal. This is equivalent to setting to '--prevent=2'.  Cannot be used with --prevent=PC option (i.e. either use no
	      options (hence prevent removal), this option or --prevent=PC).

       -h, --help
	      output the usage message then exit.

       -p, --prevent=PC
	      where PC is a prevent code value. Defined values are: 0 allows removal, 1 prevents removal (default), 2  allows  persistent  removal
	      while  3	prevents  persistent  removal.	"Persistent" in this context means that the initiator (port) that successfully uses code 3
	      blocks other initiators (ports) from allowing removal. A "persistent prevent" state can be cleared by the owner allowing	persistent
	      removal  (code  2) or a power cycle (or anything that resets the device (LU)) or some special commands (e.g. various service actions
	      of Persistent Reserve Out, see SPC-3).

       -v, --verbose
	      increase the level of verbosity, (i.e. debug output).

       -V, --version
	      print the version string and then exit.

EXIT STATUS

       The exit status of sg_prevent is 0 when it is successful. Otherwise see the sg3_utils(8) man page.

AUTHORS

       Written by Douglas Gilbert.

REPORTING BUGS

       Report bugs to <dgilbert at interlog dot com>.

COPYRIGHT

       Copyright (C) 2004-2012 Douglas Gilbert
       This software is distributed under a FreeBSD license. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A  PARTICULAR  PUR-
       POSE.

SEE ALSO

       sg_start(sg3_utils), sg_persist(sg3_utils)

sg3_utils-1.35							   November 2012						     SG_PREVENT(8)