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.\" Copyright (c) 2012 The FreeBSD Foundation
.\" All rights reserved.
.\"
.\" This software was developed by Edward Tomasz Napierala under sponsorship
.\" from the FreeBSD Foundation.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\" notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\" notice, this list of conditions and the following disclaimer in the
.\" documentation and/or other materials provided with the distribution.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
.\" $FreeBSD$
.\"
.Dd September 12, 2014
.Dt ISCSID 8
.Os
.Sh NAME
.Nm iscsid
.Nd iSCSI initiator daemon
.Sh SYNOPSIS
.Nm
.Op Fl P Ar pidfile
.Op Fl d
.Op Fl l Ar loglevel
.Op Fl m Ar maxproc
.Op Fl t Ar seconds
.Sh DESCRIPTION
The
.Nm
daemon is responsible for performing the Login Phase of iSCSI connections,
as well as performing SendTargets discovery.
.Pp
Upon startup, the
.Nm
daemon opens the iSCSI initiator device file and waits for kernel requests.
.Nm
does not use any configuration files.
All needed information is supplied by the kernel.
.Pp
When the
.Nm
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.
.Pp
The following options are available:
.Bl -tag -width ".Fl P Ar pidfile"
.It Fl P Ar pidfile
Specify alternative location of a file where main process PID will be stored.
The default location is
.Pa /var/run/iscsid.pid .
.It Fl d
Debug mode.
The daemon sends verbose debug output to standard error, and does not
put itself in the background.
The daemon will also not fork and will exit after processing one connection.
This option is only intended for debugging the initiator.
.It Fl l Ar loglevel
Specifies debug level.
The default is 0.
.It Fl m Ar maxproc
Specifies limit for concurrently running child processes handling
connections.
The default is 30.
Setting it to 0 disables the limit.
.It Fl t Ar seconds
Specifies timeout for login session, after which the connection
will be forcibly terminated.
The default is 60.
Setting it to 0 disables the timeout.
.El
.Sh FILES
.Bl -tag -width ".Pa /var/run/iscsid.pid" -compact
.It Pa /dev/iscsi
The iSCSI initiator device file.
.It Pa /var/run/iscsid.pid
The default location of the
.Nm
PID file.
.El
.Sh EXIT STATUS
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
.Nm
command appeared in
.Fx 10.0 .
.Sh AUTHORS
The
.Nm
utility was developed by
.An Edward Tomasz Napierala Aq Mt trasz@FreeBSD.org
under sponsorship from the FreeBSD Foundation.
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