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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="auarf254.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="auarf256.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_BACKUP" HREF="auarf002.htm#ToC_269">vos backup</A></H2>
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-<P><STRONG>Purpose</STRONG>
-<P>Creates a backup volume for a single read/write volume
-<P><STRONG>Synopsis</STRONG>
-<PRE>
-<B>vos backup -id</B> <<VAR>volume name or ID</VAR>> [<B>-cell</B> <<VAR>cell name</VAR>>] [<B>-noauth</B>]
- [<B>-localauth</B>] [<B>-verbose</B>] [<B>-help</B>]
-
-<B>vos backup -i</B> <<VAR>volume name or ID</VAR>> [<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 backup</B> command clones the indicated read/write volume to
-create a backup version, placing it at the same site as the read/write
-version. The backup volume's name is the same as the read/write
-source's with the addition of the <B>.backup</B>
-extension. Its volume ID number is the one allocated for it in the
-Volume Location Database (VLDB) when the read/write source was created with
-the <B>vos create</B> command. If a backup version already exists,
-the new clone replaces it.
-<P>To create a backup version of multiple volumes, use the <B>vos
-backupsys</B> command.
-<P><STRONG>Options</STRONG>
-<DL>
-<P><DT><B>-id
-</B><DD>Specifies either the complete name or volume ID number of the read/write
-source volume.
-<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 following message confirms that the command succeeded:
-<PRE> Created backup volume for <VAR>volume name</VAR>
-
-</PRE>
-<P><STRONG>Examples</STRONG>
-<P>The following example creates a backup version of the volume
-<B>user.smith</B>.
-<PRE> % <B>vos backup user.smith</B>
- Created backup volume for user.smith
-
-</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="auarf252.htm#HDRVOS_INTRO">vos</A>
-<P><A HREF="auarf256.htm#HDRVOS_BACKUPSYS">vos backupsys</A>
-<P>
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