bd6bb49397
Add per-Session configurable ping (SCSI NOP) and login timeouts. Remove the torn down, old iSCSI session quickly, when performing a reconnect. Reviewed By: trasz Sponsored by: NetApp, Inc. Differential Revision: https://reviews.freebsd.org/D34198
217 lines
5.6 KiB
Groff
217 lines
5.6 KiB
Groff
.\" Copyright (c) 2007-2010 Daniel Braniss <danny@cs.huji.ac.il>
|
|
.\" All rights reserved.
|
|
.\"
|
|
.\" 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 AUTHOR 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 AUTHOR 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 February 25, 2022
|
|
.Dt ISCSI.CONF 5
|
|
.Os
|
|
.Sh NAME
|
|
.Nm iscsi.conf
|
|
.Nd iSCSI initiator configuration file
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Nm
|
|
configuration file is used by the
|
|
.Xr iscsictl 8
|
|
utility.
|
|
The general syntax is:
|
|
.Bf Li
|
|
.Bd -literal
|
|
# this is a comment
|
|
nickname_1 {
|
|
variable = value;
|
|
...
|
|
}
|
|
nickname_2 {
|
|
variable = value;
|
|
...
|
|
}
|
|
...
|
|
.Ed
|
|
.Ef
|
|
.Bl -tag -width MaxConnections
|
|
.It Cm AuthMethod
|
|
Sets the authentication type.
|
|
Type can be either
|
|
.Qq Ar None ,
|
|
or
|
|
.Qq Ar CHAP .
|
|
Default is
|
|
.Qq Ar None .
|
|
When set to
|
|
.Cm CHAP ,
|
|
both
|
|
.Cm chapIName
|
|
and
|
|
.Cm chapSecret
|
|
must be defined.
|
|
.It Cm chapIName
|
|
Login for CHAP authentication.
|
|
.It Cm chapSecret
|
|
Secret for CHAP authentication.
|
|
.It Cm tgtChapName
|
|
Target login for Mutual CHAP authentication.
|
|
.It Cm tgtChapSecret
|
|
Target secret for Mutual CHAP authentication.
|
|
.It Cm HeaderDigest
|
|
Sets the header digest; a checksum calculated over the header of iSCSI
|
|
PDUs, and verified on receive.
|
|
Digest can be either
|
|
.Qq Ar None ,
|
|
or
|
|
.Qq Ar CRC32C .
|
|
Default is
|
|
.Qq Ar None .
|
|
.It Cm DataDigest
|
|
Sets the data digest; a checksum calculated over the Data Section of iSCSI
|
|
PDUs, and verified on receive.
|
|
Digest can be either
|
|
.Qq Ar None ,
|
|
or
|
|
.Qq Ar CRC32C .
|
|
Default is
|
|
.Qq Ar None .
|
|
.It Cm InitiatorName
|
|
Sets the initiator name.
|
|
By default, the name is concatenation of
|
|
.Qq Ar iqn.1994-09.org.freebsd:
|
|
with the hostname.
|
|
.It Cm TargetName
|
|
Sets the target name.
|
|
Not required for discovery sessions.
|
|
.It Cm TargetAddress
|
|
Sets the target address and port, in
|
|
.Sy address[:port]
|
|
format.
|
|
The
|
|
.Sy address
|
|
can be either an IP address, or hostname.
|
|
The optional port defaults to 3260.
|
|
.It Cm SessionType
|
|
Sets the session type.
|
|
Type can be either
|
|
.Qq Ar Discovery ,
|
|
or
|
|
.Qq Ar Normal .
|
|
Default is
|
|
.Qq Ar Normal .
|
|
For normal sessions, the
|
|
.Sy TargetName
|
|
must be defined.
|
|
Discovery sessions result in the initiator connecting to all the targets
|
|
returned by SendTargets iSCSI discovery with the defined
|
|
.Sy TargetAddress .
|
|
.It Cm Enable
|
|
Enable or disable the session.
|
|
State can be either
|
|
.Qq Ar On ,
|
|
or
|
|
.Qq Ar Off .
|
|
Default is
|
|
.Qq Ar On .
|
|
.It Cm Offload
|
|
Name of selected iSCSI hardware offload driver.
|
|
Default is
|
|
.Qq Ar None .
|
|
.It Cm Protocol
|
|
Name of selected protocol.
|
|
It can be either
|
|
.Qq Ar iSER ,
|
|
for iSCSI over RDMA, or
|
|
.Qq Ar iSCSI .
|
|
Default is
|
|
.Qq Ar iSCSI .
|
|
.It Cm dscp
|
|
The DiffServ Codepoint used for sending data.
|
|
The DSCP can be set to numeric, or hexadecimal values directly,
|
|
as well as the well-defined
|
|
.Qq Ar cs<n>
|
|
and
|
|
.Qq Ar af<xx>
|
|
codepoints.
|
|
Default is no specified dscp codepoint, which means the default
|
|
of the outgoing interface is used.
|
|
.It Cm pcp
|
|
The 802.1Q Priority CodePoint used for sending packets.
|
|
The PCP can be set to a value in the range between
|
|
.Qq Ar 0
|
|
to
|
|
.Qq Ar 7 .
|
|
When omitted, the default for the outgoing interface is used.
|
|
.It Cm PingTimeout
|
|
Specify the time in seconds to wait between pings (SCSI NOP), and
|
|
for a ping response before declaring the session as dead and
|
|
attempting a re-establishment.
|
|
If this entry is not present in the conf file, the default value
|
|
configured using
|
|
.Qq Ar kern.iscsi.ping_timeout
|
|
(default at
|
|
.Qq Ar 5
|
|
seconds) is taken by the driver.
|
|
If present, the PingTimeout can be set to any positive value
|
|
starting with
|
|
.Qq Ar 1 .
|
|
.It Cm LoginTimeout
|
|
Specify the time in seconds to wait for a login PDU to be sent or
|
|
received after trying to establish a new session.
|
|
When no login PDU is received within this time, the login on a
|
|
particular connection fails and a new reconnection attempt is made.
|
|
If this entry is not present in the conf file, the default value of
|
|
.Qq Ar 60
|
|
seconds is used, as configured by
|
|
.Qq Ar kern.iscsi.login_timeout .
|
|
The LoginTimeout can be set to any positive value starting with
|
|
.Qq Ar 1 .
|
|
.El
|
|
.Sh FILES
|
|
.Bl -tag -width indent
|
|
.It Pa /etc/iscsi.conf
|
|
.El
|
|
.Sh EXAMPLES
|
|
.Bd -literal
|
|
myiscsi { # nickname
|
|
targetaddress = iscsi1
|
|
targetname = iqn.1900.com.com:sn.123456
|
|
}
|
|
|
|
myiscsi6 { # nickname
|
|
targetaddress = [2001:db8::de:ef]:3260
|
|
targetname = iqn.1900.com.com:sn.123456
|
|
}
|
|
|
|
chaptest {
|
|
targetaddress = 10.0.0.1;
|
|
targetname = iqn.1900.com.com:sn.123456;
|
|
initiatorname = iqn.2005-01.il.ac.huji.cs:nobody;
|
|
authmethod = CHAP;
|
|
chapiname = iqn.2005-01.il.ac.huji.cs:nobody;
|
|
chapsecret = "secretsecret";
|
|
}
|
|
.Ed
|
|
.Sh SEE ALSO
|
|
.Xr iscsictl 8
|
|
.\"Sh HISTORY
|
|
.\"Sh AUTHORS
|