3 vos_clone - Creates a shared-space copy of a volume on a partition
10 B<vos clone> S<<< [B<-id>] <I<volume name or ID>> >>>
11 S<<< [B<-server>] <I<server name>> >>>
12 S<<< [B<-partition>] <I<partition name>> >>>
13 S<<< [B<-toname> <I<volume name on destination>>] >>>
14 S<<< [B<-toid> <I<volume ID on destination>>] >>>
15 [B<-offline>] [B<-readonly>]
16 S<<< [B<-cell> <I<cell name>>] >>> [B<-noauth>] [B<-localauth>]
17 [B<-verbose>] [B<-encrypt>] [B<-noresolve>] [B<-help>]
19 B<vos cl> S<<< [B<-i>] <I<volume name or ID>> >>>
20 S<<< [B<-s>] <I<server name>> >>>
21 S<<< [B<-p>] <I<partition name>> >>>
22 S<<< [B<-ton> <I<volume name on destination>>] >>>
23 S<<< [B<-toi> <I<volume ID on destination>>] >>> [B<-o>] [B<-r>]
24 S<<< [B<-c> <I<cell name>>] >>> [B<-noa>]
25 [B<-l>] [B<-v>] [B<-e>] [B<-nor>] [B<-h>]
32 The B<vos clone> command creates a copy-on-write copy of a volume on the
33 same partition and server as the parent volume.
35 A clone is a copy of a volume that only stores the changes from the
36 parent volume. Cloning is a primitive operation that is used by the B<vos
37 move>, B<vos backup>, and B<vos release> commands. A clone functions using
38 the same mechanism as a backup volume, but it is persistent. Clone volumes
39 can be used as point-in-time copies of the parent vollume, but they must be
44 This command is not used during normal OpenAFS administration and may
45 have adverse effects on the VLDB if not used properly! This command
46 should only be used by an expert.
48 Deleting or moving the parent volume makes the clone volume inaccessible,
49 but the clone volume remains in the VLDB and on disk, and it needs to be
52 There is a maximum limitation of 7 clones when using the namei
53 fileserver. You may safely create up to 4 clones using the B<vos clone>
54 command. The other three clone slots are used by the backup volume, a
55 read-only replica and the temporary clone that is created when executing a
56 B<vos move>, B<vos dump>, or other B<vos> commands.
58 Some commands do not work properly on clone volumes. B<vos move> is one
61 Currently, the maximum size of a volume is 2 terabytes (2^31 bytes).
67 =item [B<-id>] <I<volume name or ID>>
69 Specifies either the complete name or volume ID number of a read/write
72 =item [B<-server>] <I<machine name>>
74 Identifies the file server machine where the source volume resides. Provide
75 the machine's IP address or its host name (either fully qualified or using
76 an unambiguous abbreviation). For details, see L<vos(1)>.
78 =item [B<-partition>] <I<partition name>>
80 Names the partition where the source volume resides. Provide the full
81 partition name (for, example, B</vicepa>) or one of the abbreviated forms
82 described in L<vos(1)>.
84 =item B<-toname> <I<volume name for new copy>>
86 The complete name of the new volume to create.
88 =item B<-toid> <I<volume id for new copy>>
90 The complete id of the new volume to create.
94 Leaves the new volume flagged as off-line in the volume database.
98 Flags the new volume as read-only in the volume database.
100 =item B<-cell> <I<cell name>>
102 Names the cell in which to run the command. Do not combine this argument
103 with the B<-localauth> flag. For more details, see L<vos(1)>.
107 Assigns the unprivileged identity C<anonymous> to the issuer. Do not
108 combine this flag with the B<-localauth> flag. For more details, see
113 Constructs a server ticket using a key from the local
114 F</usr/afs/etc/KeyFile> file. The B<vos> command interpreter presents
115 it to the Volume Server and Volume Location Server during mutual
116 authentication. Do not combine this flag with the B<-cell> argument or
117 B<-noauth> flag. For more details, see L<vos(1)>.
121 Produces on the standard output stream a detailed trace of the command's
122 execution. If this argument is omitted, only warnings and error messages
127 Encrypts the command so that the operation's results are not transmitted
128 across the network in clear text. This option is available in OpenAFS
129 versions 1.4.11 or later and 1.5.60 or later.
133 Shows all servers as IP addresses instead of the DNS name. This is very
134 useful when the server address is registered as 127.0.0.1 or when dealing
135 with multi-homed servers. This option is available in OpenAFS
136 versions 1.4.8 or later and 1.5.35 or later.
140 Prints the online help for this command. All other valid options are
147 This command has no output unless C<-verbose> is specified or there is
150 =head1 PRIVILEGE REQUIRED
152 The issuer must be listed in the F</usr/afs/etc/UserList> file on the
153 machines specified with the B<-toserver> and B<-fromserver> arguments and
154 on each database server machine. If the B<-localauth> flag is included,
155 the issuer must instead be logged on to a server machine as the local
168 Copyright 2008 Jason Edgecombe <jason@rampaginggeek.com>
170 This documentation is covered by the BSD License as written in the
171 doc/LICENSE file. This man page was written by Jason Edgecombe for