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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="auarf259.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="auarf261.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_DUMP" HREF="auarf002.htm#ToC_274">vos dump</A></H2>
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-<P><STRONG>Purpose</STRONG>
-<P>Converts a volume into ASCII format and writes it to a file
-<P><STRONG>Synopsis</STRONG>
-<PRE><B>vos dump -id</B> <<VAR>volume name or ID</VAR>> [<B>-time</B> <<VAR>dump from time</VAR>>] [<B>-file</B> <<VAR>dump file</VAR>>]
- [<B>-server</B> <<VAR>server</VAR>>] [<B>-partition</B> <<VAR>partition</VAR>>] [<B>-cell</B> <<VAR>cell name</VAR>>]
- [<B>-noauth</B>] [<B>-localauth</B>] [<B>-verbose</B>] [<B>-help</B>]
-
-<B>vos du -i</B> <<VAR>volume name or ID</VAR>> [<B>-t</B> <<VAR>dump from time</VAR>>] [<B>-f</B> <<VAR>dump file</VAR>>]
- [<B>-s</B> <<VAR>server</VAR>>] [<B>-p</B> <<VAR>partition</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 dump</B> command converts the contents of the indicated
-volume, which can be read/write, read-only or backup, into ASCII
-format. The Volume Server writes the converted contents to the file
-named by the <B>-file</B> argument, or to the standard output
-stream. In the latter case, the output can be directed to a named pipe,
-which enables interoperation with third-party backup utilities.
-<P>To dump the complete contents of a volume (create a <I>full dump</I>),
-omit the <B>-time</B> argument or specify the value <B>0</B> (zero)
-for it. To create an <I>incremental dump</I>, which includes only
-the files and directories in the volume that have modification timestamps
-later than a certain time, specify a date and time as the value for the
-<B>-time</B> argument.
-<P>By default, the <B>vos</B> command interpreter consults the Volume
-Location Database (VLDB) to learn the volume's location, so the
-<B>-server</B> and <B>-partition</B> arguments are not
-required. If the <B>-id</B> argument identifies a read-only volume
-that resides at multiple sites, the command dumps the version from just one of
-them (normally, the one listed first in the volume's VLDB entry as
-reported by the <B>vos examine</B> or <B>vos listvldb</B>
-command). To dump the read-only volume from a particular site, use the
-<B>-server</B> and <B>-partition</B> arguments to specify the
-site. To bypass the VLDB lookup entirely, provide a volume ID number
-(rather than a volume name) as the value for the <B>-id</B> argument,
-together with the <B>-server</B> and <B>-partition</B>
-arguments. This makes it possible to dump a volume for which there is
-no VLDB entry.
-<P>During the dump operation, the volume is inaccessible both to Cache
-Managers and to other volume operations. Dumping a volume does not
-otherwise affect its status on the partition or its VLDB entry.
-<P>To restore a dumped volume back into AFS, use the <B>vos restore</B>
-command.
-<P><STRONG>Cautions</STRONG>
-<P>Support for incremental dumps is provided to facilitate interoperation with
-third-party backup utilities. The <B>vos dump</B> command does not
-provide any of the administrative facilities of an actual backup system, so
-the administrator must keep manual records of dump times and the relationship
-between full and incremental dumps of a volume. For a volume's
-contents to be consistent after restoration of incremental dumps, there must
-be no gap between the time at which a prior dump of the volume was created and
-the value of the <B>-time</B> argument to the <B>vos dump</B> command
-that creates the incremental dump. More specifically, for a read/write
-volume, the <B>-time</B> argument must specify the time that the prior
-dump was performed, and for a read-only or backup volume it must specify the
-time that the volume was last released (using the <B>vos release</B>
-command) or cloned (using the <B>vos backup</B> or <B>vos
-backupsys</B> command) prior to dumping it. The parent dump can be
-either a full dump or another incremental dump.
-<P><STRONG>Options</STRONG>
-<DL>
-<P><DT><B>-id
-</B><DD>Specifies either the complete name or volume ID number of the read/write,
-read-only, or backup volume to dump.
-<P><DT><B>-time
-</B><DD>Specifies whether the dump is full or incremental. Omit this
-argument to create a full dump, or provide one of three acceptable
-values:
-<UL>
-<P><LI>The value <B>0</B> (zero) to create a full dump.
-<P><LI>A date in the format
-<VAR>mm</VAR><B>/</B><VAR>dd</VAR><B>/</B><VAR>yyyy</VAR> (month, day and
-year) to create an incremental dump that includes only files and directories
-with modification timestamps later than midnight (12:00
-a.m.) on the indicated date. Valid values for the year
-range from <B>1970</B> to <B>2037</B>; higher values are not
-valid because the latest possible date in the standard UNIX representation is
-in 2038. The command interpreter automatically reduces later dates to
-the maximum value. An example is <B>01/13/1999</B>.
-<P><LI>A date and time in the format
-<B>"</B><VAR>mm</VAR><B>/</B><VAR>dd</VAR><B>/</B><VAR>yyyy</VAR>
-<VAR>hh</VAR><B>:</B><VAR>MM</VAR><B>"</B> to create an incremental
-dump that includes only files and directories with modification timestamps
-later than the specified date and time. The date format is the same as
-for a date alone. Express the time as hours and minutes
-(<VAR>hh</VAR>:<VAR>MM</VAR>) in 24-hour format (for example,
-<B>20:30</B> is 8:30 p.m.). Surround the
-entire expression with double quotes (" ") because it contains a space.
-An example is <B>"01/13/1999 22:30"</B>.
-</UL>
-<P><DT><B>-file
-</B><DD>Specifies the pathname of the file to which to write the dump. The
-file can be in AFS, but not in the volume being dumped. A partial
-pathname is interpreted relative to the current working directory. If
-this argument is omitted, the dump is directed to the standard output
-stream.
-<P><DT><B>-server
-</B><DD>Specifies the file server machine on which the volume resides.
-Provide the <B>-partition</B> argument along with this one.
-<P><DT><B>-partition
-</B><DD>Specifies the partition on which the volume resides. Provide the
-<B>-server</B> argument along with this one.
-<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>Examples</STRONG>
-<P>The following command writes a full dump of the volume
-<B>user.terry</B> to the file
-<B>/afs/abc.com/common/dumps/terry.dump</B>.
-<PRE> % <B>vos dump -id user.terry -time 0 -file /afs/abc.com/common/dumps/terry.dump</B>
-
-</PRE>
-<P>The following command writes an incremental dump of the volume
-<B>user.smith</B> to the file
-<B>smith.990131.dump</B> in the current working
-directory. Only those files in the volume with modification time stamps
-later than 6:00 p.m. on 31 January 1999 are included in
-the dump.
-<PRE> % <B>vos dump -id user.smith -time "01/31/1999 18:00" -file smith.990131.dump</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>If the <B>-file</B> argument is included, the issuer must also have
-permission to insert and write in the directory that houses the file.
-<P><STRONG>Related Information</STRONG>
-<P><A HREF="auarf252.htm#HDRVOS_INTRO">vos</A>
-<P><A HREF="auarf261.htm#HDRVOS_EXAMINE">vos examine</A>
-<P><A HREF="auarf265.htm#HDRVOS_LISTVLDB">vos listvldb</A>
-<P><A HREF="auarf274.htm#HDRVOS_RESTORE">vos restore</A>
-<P>
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