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<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 4//EN">
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<HTML><HEAD>
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<TITLE>Administration Reference</TITLE>
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<!-- /tmp/idwt3672/auarf000.scr converted by idb2h R4.2 (359) ID -->
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<!-- Workbench Version (AIX) on 3 Oct 2000 at 16:18:30 -->
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<META HTTP-EQUIV="updated" CONTENT="Tue, 03 Oct 2000 16:18:29">
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<META HTTP-EQUIV="review" CONTENT="Wed, 03 Oct 2001 16:18:29">
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<META HTTP-EQUIV="expires" CONTENT="Thu, 03 Oct 2002 16:18:29">
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</HEAD><BODY>
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<!-- (C) IBM Corporation 2000. All Rights Reserved -->
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<!-- End Header Records ============================================ -->
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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="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>
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<P>
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<H2><A NAME="HDRVOS_BACKUPSYS" HREF="auarf002.htm#ToC_270">vos backupsys</A></H2>
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<A NAME="IDX5605"></A>
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<A NAME="IDX5606"></A>
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<A NAME="IDX5607"></A>
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<A NAME="IDX5608"></A>
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<A NAME="IDX5609"></A>
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<A NAME="IDX5610"></A>
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<A NAME="IDX5611"></A>
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<P><STRONG>Purpose</STRONG>
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<P>Creates a backup volume for several read/write volumes
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<P><STRONG>Synopsis</STRONG>
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<PRE><B>vos backupsys</B> [<B>-prefix</B> <<VAR>common prefix on volume(s)</VAR>><SUP>+</SUP>]
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[<B>-server</B> <<VAR>machine name</VAR>>] [<B>-partition</B> <<VAR>partition name</VAR>>]
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[<B>-exclude</B>] [<B>-xprefix</B> <<VAR>negative prefix on volume(s)</VAR>><SUP>+</SUP>]
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[<B>-dryrun</B>] [<B>-cell</B> <<VAR>cell name</VAR>>] [<B>-noauth</B>] [<B>-localauth</B>]
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[<B>-verbose</B>] [<B>-help</B>]
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<B>vos backups</B> [<B>-pr</B> <<VAR>common prefix on volume(s)</VAR>><SUP>+</SUP>] [<B>-s</B> <<VAR>machine name</VAR>>]
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[<B>-pa</B> <<VAR>partition name</VAR>>] [<B>-e</B>] [<B>-x</B> <<VAR>negative prefix on volume(s)</VAR>><SUP>+</SUP>]
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[<B>-d</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 backupsys</B> command clones each indicated read/write
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volume to create a backup version, placing each clone at the same site as its
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read/write source version. It assigns each clone the same name as the
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read/write source, adding a <B>.backup</B> extension. It
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assigns the volume ID number already allocated for the backup version in the
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Volume Location Database (VLDB). If a backup version already exists for
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a given volume, the new clone replaces it.
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<P>To clone every read/write volume listed in the VLDB, omit all of the
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command's options. Otherwise, combine the command's options
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to clone various groups of volumes. The options use one of two basic
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criteria to select volumes: location (the <B>-server</B> and
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<B>-partition</B> arguments) or presence in the volume name of one of a
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set of specified character strings (the <B>-prefix</B>,
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<B>-exclude</B>, and <B>-xprefix</B> options).
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<P>To clone only volumes that reside on one file server machine, include the
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<B>-server</B> argument. To clone only volumes that reside on one
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partition, combine the <B>-server</B> and <B>-partition</B>
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arguments. The <B>-partition</B> argument can also be used alone to
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clone volumes that reside on the indicated partition on every file server
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machine. These arguments can be combined with those that select volumes
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based on their names.
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<P>Combine the <B>-prefix</B>, <B>-exclude</B>, and
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<B>-xprefix</B> options (with or without the <B>-server</B> and
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<B>-partition</B> arguments) in the indicated ways to select volumes based
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on character strings contained in their names:
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<UL>
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<P><LI>To clone every read/write volume at the specified location whose name
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includes one of a set of specified character strings (for example, begins with
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<B>user.</B> or includes the string <B>afs</B>), use the
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<B>-prefix</B> argument or combine the <B>-xprefix</B> and
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<B>-exclude</B> options.
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<P><LI>To clone every read/write volume at the specified location except those
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whose name includes one of a set of specified character strings, use the
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<B>-xprefix</B> argument or combine the <B>-prefix</B> and
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<B>-exclude</B> options.
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<P><LI>To clone every read/write volume at the specified location whose name
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includes one of one of a set of specified character strings, except those
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whose names include one of a different set of specified character strings,
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combine the <B>-prefix</B> and <B>-xprefix</B> arguments. The
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command creates a list of all volumes that match the <B>-prefix</B>
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argument and then removes from the list the volumes that match the
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<B>-xprefix</B> argument. For effective results, the strings
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specified by the <B>-xprefix</B> argument must designate a subset of the
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volumes specified by the <B>-prefix</B> argument.
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<P>If the <B>-exclude</B> flag is combined with the <B>-prefix</B> and
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<B>-xprefix</B> arguments, the command creates a list of all volumes that
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do not match the <B>-prefix</B> argument and then adds to the list any
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volumes that match the <B>-xprefix</B> argument. As when the
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<B>-exclude</B> flag is not used, the result is effective only if the
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strings specified by the <B>-xprefix</B> argument designate a subset of
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the volumes specified by the <B>-prefix</B> argument.
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</UL>
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<P>The <B>-prefix</B> and <B>-xprefix</B> arguments both accept
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multiple values, which can be used to define disjoint groups of
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volumes. Each value can be one of two types:
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<OL TYPE=1>
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<P><LI>A simple character string, which matches volumes whose name begin with the
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string. All characters are interpreted literally (that is, characters
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that potentially have special meaning to the command shell, such as the
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period, have only their literal meaning).
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<P><LI>A regular expression, which matches volumes whose names contain the
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expressions. Place a caret ( <B>^</B> ) at the
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beginning of the expression, and enclose the entire string in single quotes
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(<B>'</B> <B>'</B>). Explaining regular
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expressions is outside the scope of this reference page; see the UNIX
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manual page for <B>regexp(5)</B> or (for a brief introduction) the
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<B>backup addvolentry</B> reference page in this document. As an
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example, the following expression matches volumes that have the string
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<B>aix</B> anywhere in their names:
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<PRE> <B>-prefix '^.*aix'</B>
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</PRE>
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</OL>
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<P>To display a list of the volumes to be cloned, without actually cloning
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them, include the <B>-dryrun</B> flag. To display a statement that
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summarizes the criteria being used to select volume, include the
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<B>-verbose</B> flag.
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<P>This command can be used to clone a single read/write volume; specify
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its complete name as the <B>-prefix</B> argument. However, it is
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more efficient to use the <B>vos backup</B> command, which employs a more
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streamlined technique for finding a single volume.
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<P><STRONG>Options</STRONG>
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<DL>
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<P><DT><B>-prefix
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</B><DD>Specifies one or more simple character strings or regular expressions of
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any length; a volume whose name includes the string is placed on the set
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of volumes to be cloned. Include field separators (such as periods) if
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appropriate. This argument can be combined with any combination of the
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<B>-server</B>, <B>-partition</B>, <B>-exclude</B>, and
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<B>-xprefix</B> options.
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<P><DT><B>-server
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</B><DD>Identifies the file server machine where each read/write source volume
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resides. Provide the machine's IP address or its host name (either
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fully qualified or using an unambiguous abbreviation). For details, see
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the introductory reference page for the <B>vos</B> command suite.
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<P>This argument can be combined with any combination of the
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<B>-prefix</B>, <B>-partition</B>, <B>-exclude</B>, and
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<B>-xprefix</B> options.
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<P><DT><B><B>-partition</B>
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</B><DD>Identifies the partition where each read/write source volume
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resides. Provide the partition's complete name with preceding
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slash (for example, <B>/vicepa</B>) or use one of the three acceptable
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abbreviated forms. For details, see the introductory reference page for
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the <B>vos</B> command suite.
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<P>This argument can be combined with any combination of the
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<B>-prefix</B>, <B>-server</B>, <B>-exclude</B>, and
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<B>-xprefix</B> options.
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<P><DT><B>-exclude
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</B><DD>Reverses the meaning of the <B>-prefix</B> or <B>-xprefix</B>
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argument. This flag can be combined with any combination of the
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<B>-prefix</B>, <B>-server</B>, <B>-partition</B>, and
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<B>-xprefix</B> options.
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<P><DT><B>-xprefix
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</B><DD>Specifies a simple character string or regular expression of any
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length; a volume whose name includes the string is removed from the set
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of volumes to be cloned. Include field separators (such as periods) if
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appropriate. This argument can be combined with any combination of the
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<B>-prefix</B>, <B>-server</B>, <B>-partition</B>, and
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<B>-exclude</B> options.
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<P><DT><B>-dryrun
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</B><DD>Displays on the standard output stream a list of the volumes to be cloned,
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without actually cloning them.
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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>Output</STRONG>
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<P>The command generates the following messages on the standard output stream
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to confirm that the operation was successful:
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<PRE> done
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Total volumes backed up: <VAR>number_cloned</VAR>; failed to backup: <VAR>failures</VAR>
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</PRE>
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<P>If the <B>-dryrun</B> flag is included, a list of the volumes to be
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backed up precedes the standard confirmation messages.
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<P>If the <B>-verbose</B> flag is included but not the <B>-dryrun</B>
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flag, the following messages appear for each volume. The output
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concludes with the standard confirmation messages.
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<PRE> Creating backup volume for <VAR>volume_name</VAR> on <VAR>date/time</VAR>
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{Recloning backup volume | Creating a new backup clone} <VAR>backup_volumeID</VAR> . . .done
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</PRE>
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<P>If both the <B>-dryrun</B> and <B>-verbose</B> flags are included,
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the output begins with a statement summarizing the criteria being used to
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select the volumes, followed by a list of the volumes and the standard
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confirmation messages. The format of the criteria summary statement
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depends on which other options are provided:
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<UL>
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<P><LI>If only the <B>-prefix</B> argument is provided, or the
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<B>-xprefix</B> and <B>-exclude</B> options are combined:
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<PRE> Would have backed up volumes which are prefixed with <VAR>string</VAR> [or<VAR>string</VAR>] . .
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</PRE>
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<P><LI>If only the <B>-xprefix</B> argument is provided, or the
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<B>-prefix</B> and <B>-exclude</B> options are combined:
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<PRE> Would have backed up volumes which are not prefixed with <VAR>string</VAR> [nor<VAR>string</VAR>] . .
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</PRE>
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<P><LI>If the <B>-prefix</B> and <B>-xprefix</B> arguments are
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combined:
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<PRE> Would have backed up volumes which are prefixed with <VAR>string</VAR> [or<VAR>string</VAR>] \
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removing those which are prefixed with <VAR>x_string</VAR> [or<VAR>x_string</VAR>] . .
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</PRE>
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<P><LI>If the <B>-prefix</B>, <B>-xprefix</B>, and <B>-exclude</B>
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options are provided:
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<PRE> Would have backed up volumes which are not prefixed with <VAR>string</VAR> [nor<VAR>string</VAR>] \
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adding those which are prefixed with <VAR>x_string</VAR> [or<VAR>x_string</VAR>] . .
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</PRE>
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</UL>
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<P><STRONG>Examples</STRONG>
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<P>The following example creates a backup version of every read/write volume
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listed in the cell's VLDB whose name begins with the string
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<B>user</B>.
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<PRE> % <B>vos backupsys -prefix user</B>
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</PRE>
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<P>The following example, appropriate in the ABC Corporation cell, creates a
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backup version of every read/write volume on the file server machine
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<B>fs3.abc.com</B>.
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<PRE> % <B>vos backupsys -server fs3.abc.com</B>
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</PRE>
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<P>The following example, appropriate in the State University cell, creates a
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backup version of every read/write volume on the file server machine
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<B>db1.stateu.edu</B> except those whose name includes the
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string <B>temp</B>.
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<PRE> % <B>vos backupsys -server db1.stateu.edu -prefix '^.*temp'</B>
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</PRE>
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<P>The following example creates a backup version of every volume listed in
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the cell's VLDB, excluding those whose names contain the string
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<B>source</B>, but including those whose names contain the string
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<B>source.current</B>.
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<PRE> % <B>vos backupsys -prefix '^.*source' -exclude -xprefix '^.*source\.current'</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="auarf063.htm#HDRBK_ADDVOLENTRY">backup addvolentry</A>
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<P><A HREF="auarf252.htm#HDRVOS_INTRO">vos</A>
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<P><A HREF="auarf255.htm#HDRVOS_BACKUP">vos backup</A>
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<P>UNIX manual page for <B>regexp(5)</B>
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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="auarf255.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="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>
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<!-- Begin Footer Records ========================================== -->
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<P><HR><B>
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