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128 lines
3.9 KiB
Groff
128 lines
3.9 KiB
Groff
.\" Copyright (c) 2007-2010 Daniel Braniss <danny@cs.huji.ac.il>
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" $FreeBSD$
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.\"
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.Dd August 9, 2010
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.Dt ISCONTROL 8
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.Os
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.Sh NAME
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.Nm iscontrol
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.Nd login/negotiator/control for an iSCSI initiator session
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.Sh SYNOPSIS
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.Nm
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.Op Fl dv
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.Oo
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.Fl c Ar file
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.Op Fl n Ar nickname
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.Oc
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.Op Fl p Ar pidfile
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.Op Fl t Ar target
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.Op Ar variable Ns = Ns Ar value
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.Sh DESCRIPTION
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Internet SCSI (iSCSI) is a network protocol standard, that allows the
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use of the SCSI protocol over TCP/IP networks,
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the
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.Nm
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program is the userland side of an iSCSI session, see
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.Xr iscsi_initiator 4 .
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It has 2 modes of operation, if -d (discovery session) is specified,
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it will print out the
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.Em target names
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returned by the target and exit.
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In the second mode, it will, after a successful login/negotiation, run
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in daemon mode, monitoring the connection, and will try to reconnect
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in case of a network/target failure.
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It will terminate/logout the session
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when a SIGHUP signal is received.
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The flags are as follows:
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.Bl -tag -width variable=value
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.It Fl c Ar file
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a file containing configuration
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.Em key-options ,
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see
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.Xr iscsi.conf 5 .
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.It Fl d
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do a
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.Em discovery session
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and exit.
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.It Fl n Ar nickname
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if
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.Sy -c file
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is specified, then search for the block named
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.Em nickname
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in that file, see
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.Xr iscsi.conf 5 .
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.It Fl p Ar pidfile
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will write the process ID of the session to the specified
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.Em pidfile
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.It Fl t Ar target
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the target's IP address or name.
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.It Fl v
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verbose mode.
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.It Ar variable Ns = Ns Ar value
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see
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.Xr iscsi.conf 5
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for the complete list of variables/options and their
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possible values.
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.El
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.Sh EXAMPLES
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.Dl iscontrol -dt myiscsitarget
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.Pp
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will start a
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.Em discovery session
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with the target and
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print to stdout the list of available targetnames/targetadresses.
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Note: this listing does not necessarily mean availability, since
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depending on the target configuration, a discovery session might
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not need login/access permission, but a
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.Em full session
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certainly does.
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.sp
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.Dl iscontrol -c /etc/iscsi.conf -n myiscsi
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.Pp
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will read options from
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.Pa /etc/iscsi.conf ,
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use the targetaddress
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found in the block nicknamed myiscsi, login and negotiate
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whatever options are specified, and start an iscsi-session.
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.Sh SEE ALSO
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.Xr da 4 ,
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.Xr iscsi_initiator 4 ,
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.Xr sa 4 ,
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.Xr iscsi.conf 5 ,
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.Xr camcontrol 8
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.Sh STANDARDS
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RFC 3720
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.\"Sh HISTORY
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.Sh BUGS
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.Nm
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should probably load the iscsi_initiator module if needed.
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.br
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Not all functions/specifications have been implemented yet, noticeably
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missing are the Task Management Functions.
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The error recovery, though not
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.Em fully compliant
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does a brave effort to recover from network disconnects.
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