.\" Automatically generated by Pod::Man 4.14 (Pod::Simple 3.40) .\" .\" Standard preamble: .\" ======================================================================== .de Sp \" Vertical space (when we can't use .PP) .if t .sp .5v .if n .sp .. .de Vb \" Begin verbatim text .ft CW .nf .ne \\$1 .. .de Ve \" End verbatim text .ft R .fi .. .\" Set up some character translations and predefined strings. \*(-- will .\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left .\" double quote, and \*(R" will give a right double quote. \*(C+ will .\" give a nicer C++. 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Always turn off hyphenation; it makes .\" way too many mistakes in technical documents. .if n .ad l .nh .SH "NAME" vos_clone \- Creates a shared\-space copy of a volume on a partition .SH "SYNOPSIS" .IX Header "SYNOPSIS" \&\fBvos clone\fR [\fB\-id\fR]\ <\fIvolume\ name\ or\ \s-1ID\s0\fR> [\fB\-server\fR]\ <\fIserver\ name\fR> [\fB\-partition\fR]\ <\fIpartition\ name\fR> [\fB\-toname\fR\ <\fIvolume\ name\ on\ destination\fR>] [\fB\-toid\fR\ <\fIvolume\ \s-1ID\s0\ on\ destination\fR>] [\fB\-offline\fR] [\fB\-readonly\fR] [\fB\-readwrite\fR] [\fB\-cell\fR\ <\fIcell\ name\fR>] [\fB\-noauth\fR] [\fB\-localauth\fR] [\fB\-verbose\fR] [\fB\-encrypt\fR] [\fB\-noresolve\fR] [\fB\-config\fR\ <\fIconfig\ directory\fR>] [\fB\-help\fR] .PP \&\fBvos cl\fR [\fB\-i\fR]\ <\fIvolume\ name\ or\ \s-1ID\s0\fR> [\fB\-s\fR]\ <\fIserver\ name\fR> [\fB\-p\fR]\ <\fIpartition\ name\fR> [\fB\-ton\fR\ <\fIvolume\ name\ on\ destination\fR>] [\fB\-toi\fR\ <\fIvolume\ \s-1ID\s0\ on\ destination\fR>] [\fB\-o\fR] [\fB\-reado\fR] [\fB\-readw\fR] [\fB\-c\fR\ <\fIcell\ name\fR>] [\fB\-noa\fR] [\fB\-l\fR] [\fB\-v\fR] [\fB\-e\fR] [\fB\-nor\fR] [\fB\-co\fR\ <\fIconfig\ directory\fR>] [\fB\-h\fR] .SH "DESCRIPTION" .IX Header "DESCRIPTION" The \fBvos clone\fR command creates a copy-on-write copy of a volume on the same partition and server as the parent volume. .PP A clone is a copy of a volume that only stores the changes from the parent volume. Cloning is a primitive operation that is used by the \fBvos move\fR, \fBvos backup\fR, and \fBvos release\fR commands. A clone functions using the same mechanism as a backup volume, but it is persistent. Clone volumes can be used as point-in-time copies of the parent volume, but they must be used with care. .SH "CAUTIONS" .IX Header "CAUTIONS" This command is not used during normal OpenAFS administration and may have adverse effects on the \s-1VLDB\s0 if not used properly! This command should only be used by an expert. .PP Deleting or moving the parent volume makes the clone volume inaccessible, but the clone volume remains in the \s-1VLDB\s0 and on disk, and it needs to be cleaned up manually. .PP There is a maximum limitation of 7 clones when using the namei fileserver. You may safely create up to 4 clones using the \fBvos clone\fR command. The other three clone slots are used by the backup volume, a read-only replica and the temporary clone that is created when executing a \&\fBvos move\fR, \fBvos dump\fR, or other \fBvos\fR commands. .PP Some commands do not work properly on clone volumes. \fBvos move\fR is one such command. .PP Currently, the maximum quota for a volume is 2 terabytes (2^41 bytes). Note that this only affects the volume's quota; a volume may grow much larger if the volume quota is disabled. However, volumes over 2 terabytes in size may be impractical to move, and may have their size incorrectly reported by some tools, such as \fBfs_listquota\fR\|(1). .SH "OPTIONS" .IX Header "OPTIONS" .IP "\fB\-id\fR <\fIvolume name or \s-1ID\s0\fR>" 4 .IX Item "-id " Specifies either the complete name or volume \s-1ID\s0 number of a read/write volume. .IP "\fB\-server\fR <\fImachine name\fR>" 4 .IX Item "-server " Identifies the file server machine where the source volume resides. Provide the machine's \s-1IP\s0 address or its host name (either fully qualified or using an unambiguous abbreviation). For details, see \fBvos\fR\|(1). .IP "\fB\-partition\fR <\fIpartition name\fR>" 4 .IX Item "-partition " Names the partition where the source volume resides. Provide the full partition name (for, example, \fB/vicepa\fR) or one of the abbreviated forms described in \fBvos\fR\|(1). .IP "\fB\-toname\fR <\fIvolume name for new copy\fR>" 4 .IX Item "-toname " The complete name of the new volume to create. .IP "\fB\-toid\fR <\fIvolume id for new copy\fR>" 4 .IX Item "-toid " The complete id of the new volume to create. .IP "\fB\-offline\fR" 4 .IX Item "-offline" Leaves the new volume flagged as off-line in the volume database. .IP "\fB\-readonly\fR" 4 .IX Item "-readonly" Flags the new volume as read-only in the volume database. .IP "\fB\-readwrite\fR" 4 .IX Item "-readwrite" Flags the new volume as read-write in the volume database. .IP "\fB\-cell\fR <\fIcell name\fR>" 4 .IX Item "-cell " Names the cell in which to run the command. Do not combine this argument with the \fB\-localauth\fR flag. For more details, see \fBvos\fR\|(1). .IP "\fB\-noauth\fR" 4 .IX Item "-noauth" Assigns the unprivileged identity \f(CW\*(C`anonymous\*(C'\fR to the issuer. Do not combine this flag with the \fB\-localauth\fR flag. For more details, see \&\fBvos\fR\|(1). .IP "\fB\-localauth\fR" 4 .IX Item "-localauth" Constructs a server ticket using a key from the local \&\fI/etc/openafs/server/KeyFile\fR file. The \fBvos\fR command interpreter presents it to the Volume Server and Volume Location Server during mutual authentication. Do not combine this flag with the \fB\-cell\fR argument or \&\fB\-noauth\fR flag. For more details, see \fBvos\fR\|(1). .IP "\fB\-verbose\fR" 4 .IX Item "-verbose" Produces on the standard output stream a detailed trace of the command's execution. If this argument is omitted, only warnings and error messages appear. .IP "\fB\-encrypt\fR" 4 .IX Item "-encrypt" Encrypts the command so that the operation's results are not transmitted across the network in clear text. This option is available in OpenAFS versions 1.4.11 or later and 1.5.60 or later. .IP "\fB\-noresolve\fR" 4 .IX Item "-noresolve" Shows all servers as \s-1IP\s0 addresses instead of the \s-1DNS\s0 name. This is very useful when the server address is registered as 127.0.0.1 or when dealing with multi-homed servers. This option is available in OpenAFS versions 1.4.8 or later and 1.5.35 or later. .IP "\fB\-config\fR <\fIconfiguration directory\fR>" 4 .IX Item "-config " Set the location of the configuration directory to be used. This defaults to \&\fI/etc/openafs\fR, except if \fB\-localauth\fR is specified, in which case the default is \fI/etc/openafs/server\fR. This option allows the use of alternative configuration locations for testing purposes. .IP "\fB\-help\fR" 4 .IX Item "-help" Prints the online help for this command. All other valid options are ignored. .SH "OUTPUT" .IX Header "OUTPUT" This command has no output unless \f(CW\*(C`\-verbose\*(C'\fR is specified or there is an error. .SH "PRIVILEGE REQUIRED" .IX Header "PRIVILEGE REQUIRED" The issuer must be listed in the \fI/etc/openafs/server/UserList\fR file on the machines specified with the \fB\-toserver\fR and \fB\-fromserver\fR arguments and on each database server machine. If the \fB\-localauth\fR flag is included, the issuer must instead be logged on to a server machine as the local superuser \f(CW\*(C`root\*(C'\fR. .SH "SEE ALSO" .IX Header "SEE ALSO" \&\fBvos\fR\|(1), \&\fBvos_backup\fR\|(1), \&\fBvos_copy\fR\|(1), \&\fBvos_move\fR\|(1), \&\fBvos_shadow\fR\|(1) .SH "COPYRIGHT" .IX Header "COPYRIGHT" Copyright 2008 Jason Edgecombe .PP This documentation is covered by the \s-1BSD\s0 License as written in the doc/LICENSE file. This man page was written by Jason Edgecombe for OpenAFS.