1 .\" Copyright (c) 2012 The FreeBSD Foundation
2 .\" All rights reserved.
4 .\" This software was developed by Edward Tomasz Napierala under sponsorship
5 .\" from the FreeBSD Foundation.
7 .\" Redistribution and use in source and binary forms, with or without
8 .\" modification, are permitted provided that the following conditions
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30 .Dd September 20, 2012
35 .Nd CAM Target Layer / iSCSI target daemon
39 .Op Fl f Ar config-file
43 daemon is responsible for managing the CAM Target Layer configuration,
44 accepting incoming iSCSI connections, performing authentication and
45 passing connections to the kernel part of the native iSCSI target.
49 daemon parses the configuration file and exits, if it encounters any errors.
50 Then it compares the configuration with the kernel list of LUNs managed
53 instances, removes LUNs no longer existing in the configuration file,
54 and creates new LUNs as neccessary.
55 After that it listens for the incoming iSCSI connections, performs
56 authentication, and, if successful, passes the connections to the kernel part
57 of CTL iSCSI target, which handles it from that point.
59 When it receives a SIGHUP signal, the
61 reloads its configuration and applies the changes to the kernel.
62 Changes are applied in a way that avoids unneccessary disruptions;
63 for example removing one LUN does not affect other LUNs.
65 When exiting gracefully, the
67 daemon removes LUNs it managed and forcibly disconnects all the clients.
68 Otherwise - e.g. when killed with SIGKILL - LUNs stay configured
69 and clients remain connected.
71 To perform administrative actions that apply to already connected
72 sessions, such as forcing termination, use
75 The following options are available:
76 .Bl -tag -width ".Fl P Ar pidfile"
77 .It Fl f Ar config-file
78 Specifies the name of the configuration file.
83 The server sends verbose debug output to standard error, and does not
84 put itself in the background.
85 The server will also not fork and will exit after processing one connection.
86 This option is only intended for debugging the target.
89 .Bl -tag -width ".Pa /var/run/ctld.pid" -compact
91 The configuration file for
93 The file format and configuration options are described in
95 .It Pa /var/run/ctld.pid
96 The default location of the
103 utility exits 0 on success, and >0 if an error occurs.
112 .An Edward Tomasz Napierala Aq trasz@FreeBSD.org
113 under sponsorship from the FreeBSD Foundation.