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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="auarf279.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="auarf281.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="HDRVOS_ZAP" HREF="auarf002.htm#ToC_294">vos zap</A></H2>
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<A NAME="IDX5863"></A>
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<A NAME="IDX5864"></A>
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<A NAME="IDX5865"></A>
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<A NAME="IDX5866"></A>
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<P><STRONG>Purpose</STRONG>
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<P>Removes a volume from its site without writing to the VLDB
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<P><STRONG>Synopsis</STRONG>
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<PRE><B>vos zap -server</B> <<VAR>machine name</VAR>> <B>-partition</B> <<VAR>partition name</VAR>>
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<B>-id</B> <<VAR>volume ID</VAR>> [<B>-force</B>] [<B>-backup</B>] [<B>-cell</B> <<VAR>cell name</VAR>>]
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[<B>-noauth</B>] [<B>-localauth</B>] [<B>-verbose</B>] [<B>-help</B>]
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<B>vos z -s</B> <<VAR>machine name</VAR>> <B>-p</B> <<VAR>partition name</VAR>> <B>-i</B> <<VAR>volume ID</VAR>>
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[<B>-f</B>] [<B>-b</B>] [<B>-c</B> <<VAR>cell name</VAR>>] [<B>-n</B>] [<B>-l</B>] [<B>-v</B>] [<B>-h</B>]
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</PRE>
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<P><STRONG>Description</STRONG>
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<P>The <B>vos zap</B> command removes the volume with the specified
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<VAR>volume ID</VAR> from the site defined by the <B>-server</B> and
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<B>-partition</B> arguments, without attempting to change the
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corresponding Volume Location Database (VLDB) entry. If removing the
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volume can possibly result in incorrect data in the VLDB, a warning message is
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displayed.
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<P>The <B>-force</B> flag removes a volume even if it cannot be "attached"
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(brought online), which can happen either because the volume is extremely
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damaged or because the Salvager functioned abnormally. Without this
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flag, this command cannot remove volumes that are not attachable. See
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also the <B>Cautions</B> section.
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<P>To remove the specified read/write volume's backup version at the same
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time, include the <B>-backup</B> flag.
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<P><STRONG>Cautions</STRONG>
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<P>Do not use this command as the standard way to remove a volume, as it is
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likely to put the VLDB out of sync with the volumes on servers. Use the
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<B>vos remove</B> command instead.
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<P>This command is useful in situations where it is important to delete the
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volume, but for some reason the VLDB is unreachable--for example, because
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s the Volume Location Server is unavailable. The issuer can remove the
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VLDB entry later with the <B>vos remove</B> or <B>vos delentry</B>
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command, or it is removed automatically when the <B>vos syncserv</B> and
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<B>vos syncvldb</B> commands run.
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<P>To remove a read-only site defined in the VLDB by mistake, before a copy
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actually exists at the site, use the <B>vos remsite</B> command. To
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remove an entire VLDB entry without affecting volumes at their sites, use the
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<B>vos delentry</B> command.
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<P>Do not use the <B>-force</B> flag if the volume is online, but only
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when attempts to remove the volume with the <B>vos remove</B> or the
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<B>vos zap</B> command have failed, or the volume definitely cannot be
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attached. After using the <B>-force</B> flag, make sure that the
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volume's VLDB entry is also removed (issue the <B>vos delentry</B>
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command if necessary).
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<P>Adding the <B>-force</B> flag makes the command take considerably
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longer--about as long as a salvage of the relevant partition--since
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the Volume Server examines all inodes on the partition for traces of the
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volume.
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<P><STRONG>Options</STRONG>
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<DL>
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<P><DT><B>-server
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</B><DD>Identifies the file server machine from which to remove the volume.
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Provide the machine's IP address or its host name (either fully qualified
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or using an unambiguous abbreviation). For details, see the
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introductory reference page for the <B>vos</B> command suite.
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<P><DT><B>-partition
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</B><DD>Identifies the partition (on the file server machine specified by the
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<B>-server</B> argument) from which to remove the volume. Provide
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the partition's complete name with preceding slash (for example,
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<B>/vicepa</B>) or use one of the three acceptable abbreviated
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forms. For details, see the introductory reference page for the
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<B>vos</B> command suite.
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<P><DT><B>-id
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</B><DD>Specifies the volume ID number of the volume to remove, which can be of
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any of the three types. The volume name is not acceptable.
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<P><DT><B>-force
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</B><DD>Removes the volume even though it cannot be attached (brought
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online). Use only after the failure of previous attempts to remove the
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volume by using the <B>vos remove</B> command or the <B>vos</B>
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command without this flag.
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<P><DT><B>-backup
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</B><DD>Removes the backup version of the read/write volume specified by the
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<B>-id</B> argument. Do not use this flag if the <B>-id</B>
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argument identifies a read-only or backup volume.
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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>vos</B> reference page.
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<P><DT><B>-noauth
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</B><DD>Assigns the unprivileged identity <B>anonymous</B> to the
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issuer. Do not combine this flag with the <B>-localauth</B>
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flag. For more details, see the introductory <B>vos</B> reference
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page.
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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>vos</B> command
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interpreter presents it to the Volume Server and Volume Location Server during
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mutual authentication. Do not combine this flag with the
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<B>-cell</B> argument or <B>-noauth</B> flag. For more details,
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see the introductory <B>vos</B> reference page.
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<P><DT><B>-verbose
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</B><DD>Produces on the standard output stream a detailed trace of the
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command's execution. If this argument is omitted, only warnings
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and error messages appear.
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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 removes the volume with volume ID 536870988 from the
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<B>/vicepf</B> partition of the file server machine
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<B>fs6.abc.com</B>, without noting the change in the
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VLDB.
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<PRE> % <B>vos zap -server fs6.abc.com -partition f -id 536870988</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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the machine specified with the <B>-server</B> argument and on each
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database server machine. If the <B>-localauth</B> flag is included,
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the issuer must instead be logged on to a server machine as the local
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superuser <B>root</B>.
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<P><STRONG>Related Information</STRONG>
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<P><A HREF="auarf252.htm#HDRVOS_INTRO">vos</A>
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<P><A HREF="auarf259.htm#HDRVOS_DELENTRY">vos delentry</A>
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<P><A HREF="auarf271.htm#HDRVOS_REMOVE">vos remove</A>
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<P><A HREF="auarf272.htm#HDRVOS_REMSITE">vos remsite</A>
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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="auarf279.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="auarf281.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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<br>© <A HREF="http://www.ibm.com/">IBM Corporation 2000.</A> All Rights Reserved
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