MFC r271445,r271446,r271560:
Improve markup and language throughout the ctl.conf man page MFC r271543: Add the new iscsi(4) man page Cross reference it from iscsid(8) and iscsictl(8) Approved by: re (gjb), bcr (mentor)
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allanjude
parent
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@ -205,6 +205,7 @@ MAN= aac.4 \
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ipw.4 \
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ipwfw.4 \
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isci.4 \
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iscsi.4 \
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iscsi_initiator.4 \
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isp.4 \
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ispfw.4 \
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111
share/man/man4/iscsi.4
Executable file
111
share/man/man4/iscsi.4
Executable file
@ -0,0 +1,111 @@
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.\" Copyright (c) 2014 Edward Tomasz Napierala
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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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.Dd September 11, 2014
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.Dt ISCSI 4
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.Os
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.Sh NAME
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.Nm iscsi
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.Nd iSCSI initiator
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.Sh SYNOPSIS
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To compile this driver into the kernel,
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place the following line in the
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kernel configuration file:
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.Bd -ragged -offset indent
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.Cd "device iscsi"
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.Ed
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.Pp
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Alternatively, to load the driver as a
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module at boot time, place the following line in
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.Xr loader.conf 5 :
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.Bd -literal -offset indent
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iscsi_load="YES"
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.Ed
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.Sh DESCRIPTION
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The
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.Nm
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subsystem provides the kernel component of an iSCSI initiator.
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The initiator is the iSCSI client, which connects to an iSCSI target,
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providing local access to a remote block device.
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The userland component is provided by
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.Xr iscsid 8
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and both the kernel and userland are configured using
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.Xr iscsictl 8 .
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The
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.Nm
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subsystem is responsible for implementing the
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.Qq Full Feature Phase
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of the iSCSI protocol.
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.Sh SYSCTL VARIABLES
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The following variables are available as both
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.Xr sysctl 8
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variables and
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.Xr loader 8
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tunables:
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.Bl -tag -width indent
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.It Va kern.iscsi.ping_timeout
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The number of seconds to wait for the target to respond to a NOP-Out
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PDU.
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In the event that there is no response within that time the session gets
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forcibly restarted.
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.It Va kern.iscsi.iscsid_timeout
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The number of seconds to wait for
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.Xr ctld 8
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to establish a session.
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After that time
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.Nm
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will abort and retry.
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.It Va kern.iscsi.login_timeout
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The number of seconds to wait for a login attempt to succeed.
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After that time
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.Nm
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will abort and retry.
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.It Va kern.iscsi.maxtags
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The maximum number of outstanding IO requests.
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.It Va kern.iscsi.fail_on_disconnection
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Controls the behavior after an iSCSI connection has been dropped due to
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network problems.
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When set to 1, a dropped connection causes the iSCSI device nodes
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to be destroyed.
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After reconnecting, they will be created again.
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By default, the device nodes are left intact.
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While the connection is down all input/output operations are suspended, to be
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retried after the connection is reestablished.
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.El
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.Sh SEE ALSO
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.Xr iscsi.conf 5 ,
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.Xr iscsictl 8 ,
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.Xr iscsid 8
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.Sh HISTORY
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The
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.Nm
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subsystem first appeared in
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.Fx 10.0 .
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.Sh AUTHORS
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The
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.Nm
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subsystem was developed by
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.An Edward Tomasz Napierala Aq Mt trasz@FreeBSD.org
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under sponsorship from the FreeBSD Foundation.
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@ -27,7 +27,7 @@
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.\"
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.\" $FreeBSD$
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.\"
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.Dd June 18, 2014
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.Dd September 12, 2014
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.Dt ISCSICTL 8
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.Os
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.Sh NAME
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@ -171,6 +171,7 @@ Attach to target iqn.2012-06.com.example:target0, served by 192.168.1.1:
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Disconnect all iSCSI sessions:
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.Dl Nm Fl Ra
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.Sh SEE ALSO
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.Xr iscsi 4 ,
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.Xr iscsi.conf 5 ,
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.Xr iscsid 8
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.Sh HISTORY
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@ -181,6 +182,6 @@ command appeared in
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.Sh AUTHORS
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The
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.Nm
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was developed by
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utility was developed by
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.An Edward Tomasz Napierala Aq trasz@FreeBSD.org
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under sponsorship from the FreeBSD Foundation.
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@ -27,7 +27,7 @@
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.\"
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.\" $FreeBSD$
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.\"
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.Dd July 28, 2014
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.Dd September 11, 2014
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.Dt CTL.CONF 5
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.Os
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.Sh NAME
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@ -46,179 +46,249 @@ The general syntax of the
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.Nm
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file is:
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.Bd -literal -offset indent
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pidfile <path>
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.No pidfile Ar path
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auth-group <name> {
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chap <user> <secret>
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...
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.No auth-group Ar name No {
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.Dl chap Ar user Ar secret
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.Dl ...
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}
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portal-group <name> {
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listen <address>
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listen-iser <address>
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discovery-auth-group <name>
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...
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.No portal-group Ar name No {
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.Dl listen Ar address
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.Dl listen-iser Ar address
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.Dl discovery-auth-group Ar name
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.Dl ...
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}
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target <name> {
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auth-group <name>
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portal-group <name>
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lun <number> {
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path <path>
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}
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...
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.No target Ar name {
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.Dl auth-group Ar name
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.Dl portal-group Ar name
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.Dl lun Ar number No {
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.Dl path Ar path
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.Dl }
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.Dl ...
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}
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.Ed
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.Ss global level
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The following statements are available at the global level:
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.Ss Global Context
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.Bl -tag -width indent
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.It Ic auth-group Aq Ar name
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Opens an auth-group section, defining an authentication group,
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.It Ic auth-group Ar name
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Create an
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.Sy auth-group
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configuration context,
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defining a new auth-group,
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which can then be assigned to any number of targets.
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.It Ic debug Aq Ar level
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Specifies debug level.
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.It Ic debug Ar level
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The debug verbosity level.
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The default is 0.
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.It Ic maxproc Aq Ar number
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Specifies limit for concurrently running child processes handling
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.It Ic maxproc Ar number
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The limit for concurrently running child processes handling
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incoming connections.
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The default is 30.
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Setting it to 0 disables the limit.
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.It Ic pidfile Aq Ar path
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Specifies path to pidfile.
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A setting of 0 disables the limit.
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.It Ic pidfile Ar path
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The path to the pidfile.
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The default is
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.Pa /var/run/ctld.pid .
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.It Ic portal-group Aq Ar name
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Opens a portal-group section, defining a portal group,
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.It Ic portal-group Ar name
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Create a
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.Sy portal-group
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configuration context,
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which can then be assigned to any number of targets.
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.It Ic target Aq Ar name
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Opens a target configuration section.
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.It Ic timeout Aq Ar seconds
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Specifies timeout for login session, after which the connection
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.It Ic target Ar name
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Create a
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.Sy target
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configuration context, which can contain one or more
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.Sy lun
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contexts.
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.It Ic timeout Ar seconds
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The timeout for login sessions, after which the connection
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will be forcibly terminated.
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The default is 60.
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Setting it to 0 disables the timeout.
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A setting of 0 disables the timeout.
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.El
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.Ss auth-group level
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The following statements are available at the auth-group level:
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.Ss auth-group Context
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.Bl -tag -width indent
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.It Ic auth-type Ao Ar type Ac
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Specifies authentication type.
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Type can be either "none", "deny", "chap", or "chap-mutual".
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.It Ic auth-type Ar type
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Sets the authentication type.
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Type can be either
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.Qq Ar none ,
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.Qq Ar deny ,
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.Qq Ar chap ,
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or
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.Qq Ar chap-mutual .
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In most cases it is not necessary to set the type using this clause;
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it is usually used to disable authentication for a given auth-group.
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.It Ic chap Ao Ar user Ac Aq Ar secret
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Specifies CHAP authentication credentials.
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.It Ic chap-mutual Ao Ar user Ac Ao Ar secret Ac Ao Ar mutualuser Ac Aq Ar mutualsecret
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Specifies mutual CHAP authentication credentials.
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Note that for any auth-group, configuration may contain either chap,
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or chap-mutual entries; it is an error to mix them.
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.It Ic initiator-name Ao Ar initiator-name Ac
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Specifies iSCSI initiator name.
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it is usually used to disable authentication for a given
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.Sy auth-group .
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.It Ic chap Ar user Ar secret
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A set of CHAP authentication credentials.
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Note that for any
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.Sy auth-group ,
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the configuration may only contain either
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.Sy chap
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or
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.Sy chap-mutual
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entries; it is an error to mix them.
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.It Ic chap-mutual Ar user Ar secret Ar mutualuser Ar mutualsecret
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A set of mutual CHAP authentication credentials.
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Note that for any
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.Sy auth-group ,
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the configuration may only contain either
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.Sy chap
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or
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.Sy chap-mutual
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entries; it is an error to mix them.
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.It Ic initiator-name Ar initiator-name
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An iSCSI initiator name.
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Only initiators with a name matching one of the defined
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names will be allowed to connect.
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If not defined, there will be no restrictions based on initiator
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name.
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Otherwise, only initiators with names matching one of defined
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ones will be allowed to connect.
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.It Ic initiator-portal Ao Ar address Ac
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Specifies iSCSI initiator portal - IPv4 or IPv6 address or network.
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.It Ic initiator-portal Ar address Ns Op / Ns Ar prefixlen
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An iSCSI initiator portal: an IPv4 or IPv6 address, optionally
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followed by a literal slash and a prefix length.
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Only initiators with an address matching one of the defined
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addresses will be allowed to connect.
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If not defined, there will be no restrictions based on initiator
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address.
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Otherwise, only initiators with addresses matching one of defined
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ones will be allowed to connect.
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.El
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.Ss portal-group level
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The following statements are available at the portal-group level:
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.Ss portal-group Context
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.Bl -tag -width indent
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.It Ic discovery-auth-group Aq Ar name
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Assigns previously defined authentication group to the portal group,
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.It Ic discovery-auth-group Ar name
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Assign a previously defined authentication group to the portal group,
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to be used for target discovery.
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By default, portal groups that do not specify their own auth settings,
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using clauses such as "chap" or "initiator-name", are assigned
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predefined auth-group "default", which denies discovery.
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Another predefined auth-group, "no-authentication", may be used
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using clauses such as
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.Sy chap
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or
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.Sy initiator-name ,
|
||||
are assigned
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predefined
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.Sy auth-group
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.Qq Ar default ,
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which denies discovery.
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Another predefined
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.Sy auth-group ,
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.Qq Ar no-authentication ,
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may be used
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to permit discovery without authentication.
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.It Ic listen Aq Ar address
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Specifies IPv4 or IPv6 address and port to listen on for incoming connections.
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.It Ic listen-iser Aq Ar address
|
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Specifies IPv4 or IPv6 address and port to listen on for incoming connections
|
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.It Ic listen Ar address
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An IPv4 or IPv6 address and port to listen on for incoming connections.
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.It Ic listen-iser Ar address
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An IPv4 or IPv6 address and port to listen on for incoming connections
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using iSER (iSCSI over RDMA) protocol.
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.El
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.Ss target level:
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The following statements are available at the target level:
|
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.Ss target Context
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.Bl -tag -width indent
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.It Ic alias Aq Ar text
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||||
Assigns human-readable description to the target.
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.It Ic alias Ar text
|
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Assign a human-readable description to the target.
|
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There is no default.
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.It Ic auth-group Aq Ar name
|
||||
Assigns previously defined authentication group to the target.
|
||||
.It Ic auth-group Ar name
|
||||
Assign a previously defined authentication group to the target.
|
||||
By default, targets that do not specify their own auth settings,
|
||||
using clauses such as "chap" or "initiator-name", are assigned
|
||||
predefined auth-group "default", which denies all access.
|
||||
Another predefined auth-group, "no-authentication", may be used to permit access
|
||||
using clauses such as
|
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.Sy chap
|
||||
or
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||||
.Sy initiator-name ,
|
||||
are assigned
|
||||
predefined
|
||||
.Sy auth-group
|
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.Qq Ar default ,
|
||||
which denies all access.
|
||||
Another predefined
|
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.Sy auth-group ,
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.Qq Ar no-authentication ,
|
||||
may be used to permit access
|
||||
without authentication.
|
||||
.It Ic auth-type Ao Ar type Ac
|
||||
Specifies authentication type.
|
||||
Type can be either "none", "deny", "chap", or "chap-mutual".
|
||||
Note that targets must only use one of
|
||||
.Sy auth-group , chap , No or Sy chap-mutual ;
|
||||
it is a configuration error to mix multiple types in one target.
|
||||
.It Ic auth-type Ar type
|
||||
Sets the authentication type.
|
||||
Type can be either
|
||||
.Qq Ar none ,
|
||||
.Qq Ar deny ,
|
||||
.Qq Ar chap ,
|
||||
or
|
||||
.Qq Ar chap-mutual .
|
||||
In most cases it is not necessary to set the type using this clause;
|
||||
it is usually used to disable authentication for a given target.
|
||||
This clause is mutually exclusive with auth-group; one cannot use
|
||||
it is usually used to disable authentication for a given
|
||||
.Sy target .
|
||||
This clause is mutually exclusive with
|
||||
.Sy auth-group ;
|
||||
one cannot use
|
||||
both in a single target.
|
||||
.It Ic chap Ao Ar user Ac Aq Ar secret
|
||||
Specifies CHAP authentication credentials.
|
||||
Note that targets must use either auth-group, or chap,
|
||||
or chap-mutual clauses; it is a configuration error to mix them in one target.
|
||||
.It Ic chap-mutual Ao Ar user Ac Ao Ar secret Ac Ao Ar mutualuser Ac Aq Ar mutualsecret
|
||||
Specifies mutual CHAP authentication credentials.
|
||||
Note that targets must use either auth-group, chap, or
|
||||
chap-mutual clauses; it is a configuration error to mix them in one target.
|
||||
.It Ic initiator-name Ao Ar initiator-name Ac
|
||||
Specifies iSCSI initiator name.
|
||||
.It Ic chap Ar user Ar secret
|
||||
A set of CHAP authentication credentials.
|
||||
Note that targets must only use one of
|
||||
.Sy auth-group , chap , No or Sy chap-mutual ;
|
||||
it is a configuration error to mix multiple types in one target.
|
||||
.It Ic chap-mutual Ar user Ar secret Ar mutualuser Ar mutualsecret
|
||||
A set of mutual CHAP authentication credentials.
|
||||
Note that targets must only use one of
|
||||
.Sy auth-group , chap , No or Sy chap-mutual ;
|
||||
it is a configuration error to mix multiple types in one target.
|
||||
.It Ic initiator-name Ar initiator-name
|
||||
An iSCSI initiator name.
|
||||
Only initiators with a name matching one of the defined
|
||||
names will be allowed to connect.
|
||||
If not defined, there will be no restrictions based on initiator
|
||||
name.
|
||||
Otherwise, only initiators with names matching one of defined
|
||||
ones will be allowed to connect.
|
||||
This clause is mutually exclusive with auth-group; one cannot use
|
||||
This clause is mutually exclusive with
|
||||
.Sy auth-group ;
|
||||
one cannot use
|
||||
both in a single target.
|
||||
.It Ic initiator-portal Ao Ar address Ac
|
||||
Specifies iSCSI initiator portal - IPv4 or IPv6 address.
|
||||
.It Ic initiator-portal Ar address Ns Op / Ns Ar prefixlen
|
||||
An iSCSI initiator portal: an IPv4 or IPv6 address, optionally
|
||||
followed by a literal slash and a prefix length.
|
||||
Only initiators with an address matching one of the defined
|
||||
addresses will be allowed to connect.
|
||||
If not defined, there will be no restrictions based on initiator
|
||||
address.
|
||||
Otherwise, only initiators with addresses matching one of defined
|
||||
ones will be allowed to connect.
|
||||
This clause is mutually exclusive with auth-group; one cannot use
|
||||
This clause is mutually exclusive with
|
||||
.Sy auth-group ;
|
||||
one cannot use
|
||||
both in a single target.
|
||||
.It Ic portal-group Aq Ar name
|
||||
Assigns previously defined portal group to the target.
|
||||
Default portal group is "default", which makes the target available
|
||||
.It Ic portal-group Ar name
|
||||
Assign a previously defined portal group to the target.
|
||||
The default portal group is
|
||||
.Qq Ar default ,
|
||||
which makes the target available
|
||||
on TCP port 3260 on all configured IPv4 and IPv6 addresses.
|
||||
.It Ic lun Aq Ar number
|
||||
Opens a lun configuration section, defining LUN exported by a target.
|
||||
.It Ic lun Ar number
|
||||
Create a
|
||||
.Sy lun
|
||||
configuration context, defining a LUN exported by the parent target.
|
||||
.El
|
||||
.Ss lun level
|
||||
The following statements are available at the lun level:
|
||||
.Ss lun Context
|
||||
.Bl -tag -width indent
|
||||
.It Ic backend Ao Ar block | Ar ramdisk Ac
|
||||
Specifies the CTL backend to use for a given LUN.
|
||||
.It Ic backend Ar block No | Ar ramdisk
|
||||
The CTL backend to use for a given LUN.
|
||||
Valid choices are
|
||||
.Dq block
|
||||
.Qq Ar block
|
||||
and
|
||||
.Dq ramdisk ;
|
||||
.Qq Ar ramdisk ;
|
||||
block is used for LUNs backed
|
||||
by files or disk device nodes; ramdisk is a bitsink device, used mostly for
|
||||
testing.
|
||||
The default backend is block.
|
||||
.It Ic blocksize Aq Ar size
|
||||
Specifies blocksize visible to the initiator.
|
||||
.It Ic blocksize Ar size
|
||||
The blocksize visible to the initiator.
|
||||
The default blocksize is 512.
|
||||
.It Ic device-id Aq Ar string
|
||||
Specifies SCSI Device Identification string presented to the initiator.
|
||||
.It Ic option Ao Ar name Ac Aq Ar value
|
||||
Specifies CTL-specific options passed to the kernel.
|
||||
.It Ic path Aq Ar path
|
||||
Specifies path to file or device node used to back the LUN.
|
||||
.It Ic serial Aq Ar string
|
||||
Specifies SCSI serial number presented to the initiator.
|
||||
.It Ic size Aq Ar size
|
||||
Specifies LUN size, in bytes.
|
||||
.It Ic device-id Ar string
|
||||
The SCSI Device Identification string presented to the initiator.
|
||||
.It Ic option Ar name Ar value
|
||||
The CTL-specific options passed to the kernel.
|
||||
All CTL-specific options are documented in the
|
||||
.Sx OPTIONS
|
||||
section of
|
||||
.Xr ctladm 8
|
||||
.It Ic path Ar path
|
||||
The path to the file or device node used to back the LUN.
|
||||
.It Ic serial Ar string
|
||||
The SCSI serial number presented to the initiator.
|
||||
.It Ic size Ar size
|
||||
The LUN size, in bytes.
|
||||
.El
|
||||
.Sh FILES
|
||||
.Bl -tag -width ".Pa /etc/ctl.conf" -compact
|
||||
|
||||
@ -27,7 +27,7 @@
|
||||
.\"
|
||||
.\" $FreeBSD$
|
||||
.\"
|
||||
.Dd September 20, 2012
|
||||
.Dd September 12, 2014
|
||||
.Dt ISCSID 8
|
||||
.Os
|
||||
.Sh NAME
|
||||
@ -49,12 +49,13 @@ as well as performing SendTargets discovery.
|
||||
Upon startup, the
|
||||
.Nm
|
||||
daemon opens the iSCSI initiator device file and waits for kernel requests.
|
||||
It doesn't use any configuration file; all the information it needs it gets
|
||||
from the kernel.
|
||||
.Nm
|
||||
does not use any configuration files.
|
||||
All needed information is supplied by the kernel.
|
||||
.Pp
|
||||
When the
|
||||
.Nm
|
||||
damon is not running, already established iSCSI connections continue
|
||||
daemon is not running, already established iSCSI connections continue
|
||||
to work.
|
||||
However, establishing new connections, or recovering existing ones in case
|
||||
of connection error, is not possible.
|
||||
@ -99,6 +100,7 @@ The
|
||||
.Nm
|
||||
utility exits 0 on success, and >0 if an error occurs.
|
||||
.Sh SEE ALSO
|
||||
.Xr iscsi 4 ,
|
||||
.Xr iscsictl 8
|
||||
.Sh HISTORY
|
||||
The
|
||||
@ -108,6 +110,6 @@ command appeared in
|
||||
.Sh AUTHORS
|
||||
The
|
||||
.Nm
|
||||
was developed by
|
||||
utility was developed by
|
||||
.An Edward Tomasz Napierala Aq trasz@FreeBSD.org
|
||||
under sponsorship from the FreeBSD Foundation.
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user