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<HTML><HEAD>
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<TITLE>Administration Reference</TITLE>
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<META HTTP-EQUIV="updated" CONTENT="Tue, 03 Oct 2000 16:18:29">
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<A NAME="Top_Of_Page"></A>
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<H1>Administration Reference</H1>
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<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="auarf084.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="auarf086.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>
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<P>
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<H2><A NAME="HDRBK_RESTOREDB" HREF="auarf002.htm#ToC_99">backup restoredb</A></H2>
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<A NAME="IDX4394"></A>
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<A NAME="IDX4395"></A>
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<A NAME="IDX4396"></A>
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<P><STRONG>Purpose</STRONG>
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<P>Restores a saved copy of the Backup Database
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<P><STRONG>Synopsis</STRONG>
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<PRE><B>backup restoredb</B> [<B>-portoffset</B> <<VAR>TC port offset</VAR>>]
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[<B>-localauth</B>] [<B>-cell</B> <<VAR>cell name</VAR>>] [<B>-help</B>]
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<B>backup res</B> [<B>-p</B> <<VAR>TC port offset</VAR>>] [<B>-l</B>] [<B>-c</B> <<VAR>cell name</VAR>>] [<B>-h</B>]
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</PRE>
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<P><STRONG>Description</STRONG>
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<P>The <B>backup restoredb</B> command restores to the Backup Server
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machine's local disk a version of the Backup Database previously written
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to tape by using the <B>backup savedb</B> command.
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<P>(If the <B>FILE YES</B> instruction appears in the
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<B>/usr/afs/backup/CFG_</B><VAR>device_name</VAR> file associated with the
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specified port offset, then the <B>backup restoredb</B> command restores
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data from the backup data file listed for that port offset in the Tape
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Coordinator's <B>/usr/afs/backup/tapeconfig</B> file, instead of from
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tape. For the sake of clarity, the following text refers to tapes only,
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but the Backup System handles backup data files in much the same way.)
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<P>The most common reason to run this command is to replace a corrupted or
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otherwise damaged Backup Database; use the <B>backup dbverify</B>
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command to determine the database's status. The command can also
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be used to restore records that were removed from the database when the
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<B>-archive</B> argument was included on a previous <B>backup
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savedb</B> command.
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<P>The command completely overwrites the existing Backup Database records for
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volume sets, Tape Coordinators, and the dump hierarchy with the corresponding
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information from the saved version. It does not overwrite existing dump
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records, but instead interleaves the records from the copy being
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restored. If both the existing database (on the Backup Server
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machine's disk) and the copy being restored include a record about the
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same dump, the Backup System retains the one in the existing database.
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<P>The Tape Coordinator's default response to this command is to access
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the first tape it needs by invoking the <B>MOUNT</B> instruction in the
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local <B>/usr/afs/backup/CFG_</B><VAR>device_name</VAR> file, or by
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prompting the backup operator to insert the tape if there is no
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<B>MOUNT</B> instruction. However, if the <B>AUTOQUERY NO</B>
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instruction appears in the <B>CFG_</B><VAR>device_name</VAR> file, or if the
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issuer of the <B>butc</B> command included the <B>-noautoquery</B>
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flag, the Tape Coordinator instead expects the tape to be in the device
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already. If it is not, or is the wrong tape, the Tape Coordinator
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invokes the <B>MOUNT</B> instruction or prompts the operator. It
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also invokes the <B>MOUNT</B> instruction or prompts for any additional
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tapes needed to complete the restore operation; the backup operator must
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arrange to provide them.
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<P><STRONG>Cautions</STRONG>
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<P>If the database is corrupted, do not attempt to restore a saved database on
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top of it. Instead, use the instructions for repairing a corrupted
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database in the <I>IBM AFS Administration Guide</I> chapter about
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performing backup operations.
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<P><STRONG>Options</STRONG>
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<DL>
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<P><DT><B>-portoffset
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</B><DD>Specifies the port offset number of the Tape Coordinator handling the
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tapes for this operation.
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<P><DT><B>-localauth
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</B><DD>Constructs a server ticket using a key from the local
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<B>/usr/afs/etc/KeyFile</B> file. The <B>backup</B> command
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interpreter presents it to the Backup Server, Volume Server and VL Server
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during mutual authentication. Do not combine this flag with the
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<B>-cell</B> argument. For more details, see the introductory
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<B>backup</B> reference page.
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<P><DT><B>-cell
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</B><DD>Names the cell in which to run the command. Do not combine this
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argument with the <B>-localauth</B> flag. For more details, see the
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introductory <B>backup</B> reference page.
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<P><DT><B>-help
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</B><DD>Prints the online help for this command. All other valid options
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are ignored.
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</DL>
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<P><STRONG>Examples</STRONG>
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<P>The following example shows the Backup Database being restored from the
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Tape Coordinator with port offset 0:
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<PRE> % <B>backup restoredb</B>
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</PRE>
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<P><STRONG>Privilege Required</STRONG>
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<P>The issuer must be listed in the <B>/usr/afs/etc/UserList</B> file on
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every machine where the Backup Server is running, or must be logged onto a
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server machine as the local superuser <B>root</B> if the
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<B>-localauth</B> flag is included.
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<P><STRONG>Related Information</STRONG>
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<P><A HREF="auarf060.htm#HDRBK_INTRO">backup</A>
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<P><A HREF="auarf066.htm#HDRBK_DBVERIFY">backup dbverify</A>
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<P><A HREF="auarf086.htm#HDRBK_SAVEDB">backup savedb</A>
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<P><A HREF="auarf126.htm#HDRBUTC">butc</A>
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<P><I>IBM AFS Administration Guide</I>
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<P>
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<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="auarf084.htm"><IMG SRC="../prev.gif" BORDER="0" ALT="[Previous Topic]"></A> <A HREF="#Top_Of_Page"><IMG SRC="../top.gif" BORDER="0" ALT="[Top of Topic]"></A> <A HREF="auarf086.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>
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