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-<H1>Administration Reference</H1>
-<HR><P ALIGN="center"> <A HREF="../index.htm"><IMG SRC="../books.gif" BORDER="0" ALT="[Return to Library]"></A> <A HREF="auarf002.htm#ToC"><IMG SRC="../toc.gif" BORDER="0" ALT="[Contents]"></A> <A HREF="auarf255.htm"><IMG SRC="../prev.gif" BORDER="0" ALT="[Previous Topic]"></A> <A HREF="#Bot_Of_Page"><IMG SRC="../bot.gif" BORDER="0" ALT="[Bottom of Topic]"></A> <A HREF="auarf257.htm"><IMG SRC="../next.gif" BORDER="0" ALT="[Next Topic]"></A> <A HREF="auarf284.htm#HDRINDEX"><IMG SRC="../index.gif" BORDER="0" ALT="[Index]"></A> <P>
-<P>
-<H2><A NAME="HDRVOS_BACKUPSYS" HREF="auarf002.htm#ToC_270">vos backupsys</A></H2>
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-<P><STRONG>Purpose</STRONG>
-<P>Creates a backup volume for several read/write volumes
-<P><STRONG>Synopsis</STRONG>
-<PRE><B>vos backupsys</B> [<B>-prefix</B> <<VAR>common prefix on volume(s)</VAR>><SUP>+</SUP>]
- [<B>-server</B> <<VAR>machine name</VAR>>] [<B>-partition</B> <<VAR>partition name</VAR>>]
- [<B>-exclude</B>] [<B>-xprefix</B> <<VAR>negative prefix on volume(s)</VAR>><SUP>+</SUP>]
- [<B>-dryrun</B>] [<B>-cell</B> <<VAR>cell name</VAR>>] [<B>-noauth</B>] [<B>-localauth</B>]
- [<B>-verbose</B>] [<B>-help</B>]
-
-<B>vos backups</B> [<B>-pr</B> <<VAR>common prefix on volume(s)</VAR>><SUP>+</SUP>] [<B>-s</B> <<VAR>machine name</VAR>>]
- [<B>-pa</B> <<VAR>partition name</VAR>>] [<B>-e</B>] [<B>-x</B> <<VAR>negative prefix on volume(s)</VAR>><SUP>+</SUP>]
- [<B>-d</B>] [<B>-c</B> <<VAR>cell name</VAR>>] [<B>-n</B>] [<B>-l</B>] [<B>-v</B>] [<B>-h</B>]
-</PRE>
-<P><STRONG>Description</STRONG>
-<P>The <B>vos backupsys</B> command clones each indicated read/write
-volume to create a backup version, placing each clone at the same site as its
-read/write source version. It assigns each clone the same name as the
-read/write source, adding a <B>.backup</B> extension. It
-assigns the volume ID number already allocated for the backup version in the
-Volume Location Database (VLDB). If a backup version already exists for
-a given volume, the new clone replaces it.
-<P>To clone every read/write volume listed in the VLDB, omit all of the
-command's options. Otherwise, combine the command's options
-to clone various groups of volumes. The options use one of two basic
-criteria to select volumes: location (the <B>-server</B> and
-<B>-partition</B> arguments) or presence in the volume name of one of a
-set of specified character strings (the <B>-prefix</B>,
-<B>-exclude</B>, and <B>-xprefix</B> options).
-<P>To clone only volumes that reside on one file server machine, include the
-<B>-server</B> argument. To clone only volumes that reside on one
-partition, combine the <B>-server</B> and <B>-partition</B>
-arguments. The <B>-partition</B> argument can also be used alone to
-clone volumes that reside on the indicated partition on every file server
-machine. These arguments can be combined with those that select volumes
-based on their names.
-<P>Combine the <B>-prefix</B>, <B>-exclude</B>, and
-<B>-xprefix</B> options (with or without the <B>-server</B> and
-<B>-partition</B> arguments) in the indicated ways to select volumes based
-on character strings contained in their names:
-<UL>
-<P><LI>To clone every read/write volume at the specified location whose name
-includes one of a set of specified character strings (for example, begins with
-<B>user.</B> or includes the string <B>afs</B>), use the
-<B>-prefix</B> argument or combine the <B>-xprefix</B> and
-<B>-exclude</B> options.
-<P><LI>To clone every read/write volume at the specified location except those
-whose name includes one of a set of specified character strings, use the
-<B>-xprefix</B> argument or combine the <B>-prefix</B> and
-<B>-exclude</B> options.
-<P><LI>To clone every read/write volume at the specified location whose name
-includes one of one of a set of specified character strings, except those
-whose names include one of a different set of specified character strings,
-combine the <B>-prefix</B> and <B>-xprefix</B> arguments. The
-command creates a list of all volumes that match the <B>-prefix</B>
-argument and then removes from the list the volumes that match the
-<B>-xprefix</B> argument. For effective results, the strings
-specified by the <B>-xprefix</B> argument must designate a subset of the
-volumes specified by the <B>-prefix</B> argument.
-<P>If the <B>-exclude</B> flag is combined with the <B>-prefix</B> and
-<B>-xprefix</B> arguments, the command creates a list of all volumes that
-do not match the <B>-prefix</B> argument and then adds to the list any
-volumes that match the <B>-xprefix</B> argument. As when the
-<B>-exclude</B> flag is not used, the result is effective only if the
-strings specified by the <B>-xprefix</B> argument designate a subset of
-the volumes specified by the <B>-prefix</B> argument.
-</UL>
-<P>The <B>-prefix</B> and <B>-xprefix</B> arguments both accept
-multiple values, which can be used to define disjoint groups of
-volumes. Each value can be one of two types:
-<OL TYPE=1>
-<P><LI>A simple character string, which matches volumes whose name begin with the
-string. All characters are interpreted literally (that is, characters
-that potentially have special meaning to the command shell, such as the
-period, have only their literal meaning).
-<P><LI>A regular expression, which matches volumes whose names contain the
-expressions. Place a caret ( <B>^</B> ) at the
-beginning of the expression, and enclose the entire string in single quotes
-(<B>'</B> <B>'</B>). Explaining regular
-expressions is outside the scope of this reference page; see the UNIX
-manual page for <B>regexp(5)</B> or (for a brief introduction) the
-<B>backup addvolentry</B> reference page in this document. As an
-example, the following expression matches volumes that have the string
-<B>aix</B> anywhere in their names:
-<PRE> <B>-prefix '^.*aix'</B>
-</PRE>
-</OL>
-<P>To display a list of the volumes to be cloned, without actually cloning
-them, include the <B>-dryrun</B> flag. To display a statement that
-summarizes the criteria being used to select volume, include the
-<B>-verbose</B> flag.
-<P>This command can be used to clone a single read/write volume; specify
-its complete name as the <B>-prefix</B> argument. However, it is
-more efficient to use the <B>vos backup</B> command, which employs a more
-streamlined technique for finding a single volume.
-<P><STRONG>Options</STRONG>
-<DL>
-<P><DT><B>-prefix
-</B><DD>Specifies one or more simple character strings or regular expressions of
-any length; a volume whose name includes the string is placed on the set
-of volumes to be cloned. Include field separators (such as periods) if
-appropriate. This argument can be combined with any combination of the
-<B>-server</B>, <B>-partition</B>, <B>-exclude</B>, and
-<B>-xprefix</B> options.
-<P><DT><B>-server
-</B><DD>Identifies the file server machine where each read/write source volume
-resides. Provide the machine's IP address or its host name (either
-fully qualified or using an unambiguous abbreviation). For details, see
-the introductory reference page for the <B>vos</B> command suite.
-<P>This argument can be combined with any combination of the
-<B>-prefix</B>, <B>-partition</B>, <B>-exclude</B>, and
-<B>-xprefix</B> options.
-<P><DT><B><B>-partition</B>
-</B><DD>Identifies the partition where each read/write source volume
-resides. Provide the partition's complete name with preceding
-slash (for example, <B>/vicepa</B>) or use one of the three acceptable
-abbreviated forms. For details, see the introductory reference page for
-the <B>vos</B> command suite.
-<P>This argument can be combined with any combination of the
-<B>-prefix</B>, <B>-server</B>, <B>-exclude</B>, and
-<B>-xprefix</B> options.
-<P><DT><B>-exclude
-</B><DD>Reverses the meaning of the <B>-prefix</B> or <B>-xprefix</B>
-argument. This flag can be combined with any combination of the
-<B>-prefix</B>, <B>-server</B>, <B>-partition</B>, and
-<B>-xprefix</B> options.
-<P><DT><B>-xprefix
-</B><DD>Specifies a simple character string or regular expression of any
-length; a volume whose name includes the string is removed from the set
-of volumes to be cloned. Include field separators (such as periods) if
-appropriate. This argument can be combined with any combination of the
-<B>-prefix</B>, <B>-server</B>, <B>-partition</B>, and
-<B>-exclude</B> options.
-<P><DT><B>-dryrun
-</B><DD>Displays on the standard output stream a list of the volumes to be cloned,
-without actually cloning them.
-<P><DT><B>-cell
-</B><DD>Names the cell in which to run the command. Do not combine this
-argument with the <B>-localauth</B> flag. For more details, see the
-introductory <B>vos</B> reference page.
-<P><DT><B>-noauth
-</B><DD>Assigns the unprivileged identity <B>anonymous</B> to the
-issuer. Do not combine this flag with the <B>-localauth</B>
-flag. For more details, see the introductory <B>vos</B> reference
-page.
-<P><DT><B>-localauth
-</B><DD>Constructs a server ticket using a key from the local
-<B>/usr/afs/etc/KeyFile</B> file. The <B>vos</B> command
-interpreter presents it to the Volume Server and Volume Location Server during
-mutual authentication. Do not combine this flag with the
-<B>-cell</B> argument or <B>-noauth</B> flag. For more details,
-see the introductory <B>vos</B> reference page.
-<P><DT><B>-verbose
-</B><DD>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.
-<P><DT><B>-help
-</B><DD>Prints the online help for this command. All other valid options
-are ignored.
-</DL>
-<P><STRONG>Output</STRONG>
-<P>The command generates the following messages on the standard output stream
-to confirm that the operation was successful:
-<PRE> done
- Total volumes backed up: <VAR>number_cloned</VAR>; failed to backup: <VAR>failures</VAR>
-</PRE>
-<P>If the <B>-dryrun</B> flag is included, a list of the volumes to be
-backed up precedes the standard confirmation messages.
-<P>If the <B>-verbose</B> flag is included but not the <B>-dryrun</B>
-flag, the following messages appear for each volume. The output
-concludes with the standard confirmation messages.
-<PRE> Creating backup volume for <VAR>volume_name</VAR> on <VAR>date/time</VAR>
- {Recloning backup volume | Creating a new backup clone} <VAR>backup_volumeID</VAR> . . .done
-</PRE>
-<P>If both the <B>-dryrun</B> and <B>-verbose</B> flags are included,
-the output begins with a statement summarizing the criteria being used to
-select the volumes, followed by a list of the volumes and the standard
-confirmation messages. The format of the criteria summary statement
-depends on which other options are provided:
-<UL>
-<P><LI>If only the <B>-prefix</B> argument is provided, or the
-<B>-xprefix</B> and <B>-exclude</B> options are combined:
-<PRE> Would have backed up volumes which are prefixed with <VAR>string</VAR> [or<VAR>string</VAR>] . .
-</PRE>
-<P><LI>If only the <B>-xprefix</B> argument is provided, or the
-<B>-prefix</B> and <B>-exclude</B> options are combined:
-<PRE> Would have backed up volumes which are not prefixed with <VAR>string</VAR> [nor<VAR>string</VAR>] . .
-</PRE>
-<P><LI>If the <B>-prefix</B> and <B>-xprefix</B> arguments are
-combined:
-<PRE> Would have backed up volumes which are prefixed with <VAR>string</VAR> [or<VAR>string</VAR>] \
- removing those which are prefixed with <VAR>x_string</VAR> [or<VAR>x_string</VAR>] . .
-</PRE>
-<P><LI>If the <B>-prefix</B>, <B>-xprefix</B>, and <B>-exclude</B>
-options are provided:
-<PRE> Would have backed up volumes which are not prefixed with <VAR>string</VAR> [nor<VAR>string</VAR>] \
- adding those which are prefixed with <VAR>x_string</VAR> [or<VAR>x_string</VAR>] . .
-</PRE>
-</UL>
-<P><STRONG>Examples</STRONG>
-<P>The following example creates a backup version of every read/write volume
-listed in the cell's VLDB whose name begins with the string
-<B>user</B>.
-<PRE> % <B>vos backupsys -prefix user</B>
-
-</PRE>
-<P>The following example, appropriate in the ABC Corporation cell, creates a
-backup version of every read/write volume on the file server machine
-<B>fs3.abc.com</B>.
-<PRE> % <B>vos backupsys -server fs3.abc.com</B>
-
-</PRE>
-<P>The following example, appropriate in the State University cell, creates a
-backup version of every read/write volume on the file server machine
-<B>db1.stateu.edu</B> except those whose name includes the
-string <B>temp</B>.
-<PRE> % <B>vos backupsys -server db1.stateu.edu -prefix '^.*temp'</B>
-
-</PRE>
-<P>The following example creates a backup version of every volume listed in
-the cell's VLDB, excluding those whose names contain the string
-<B>source</B>, but including those whose names contain the string
-<B>source.current</B>.
-<PRE> % <B>vos backupsys -prefix '^.*source' -exclude -xprefix '^.*source\.current'</B>
-
-</PRE>
-<P><STRONG>Privilege Required</STRONG>
-<P>The issuer must be listed in the <B>/usr/afs/etc/UserList</B> file on
-the machine specified with the <B>-server</B> argument and on each
-database server machine. If the <B>-localauth</B> flag is included,
-the issuer must instead be logged on to a server machine as the local
-superuser <B>root</B>.
-<P><STRONG>Related Information</STRONG>
-<P><A HREF="auarf063.htm#HDRBK_ADDVOLENTRY">backup addvolentry</A>
-<P><A HREF="auarf252.htm#HDRVOS_INTRO">vos</A>
-<P><A HREF="auarf255.htm#HDRVOS_BACKUP">vos backup</A>
-<P>UNIX manual page for <B>regexp(5)</B>
-<P>
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