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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="auarf067.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="auarf069.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_DELETEDUMP" HREF="auarf002.htm#ToC_82">backup deletedump</A></H2>
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<A NAME="IDX4275"></A>
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<A NAME="IDX4276"></A>
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<A NAME="IDX4277"></A>
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<A NAME="IDX4278"></A>
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<A NAME="IDX4279"></A>
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<P><STRONG>Purpose</STRONG>
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<P>Deletes one or more dump records from the Backup Database
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<P><STRONG>Synopsis</STRONG>
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<PRE><B>backup deletedump</B> [<B>-dumpid</B> <<VAR>dump id</VAR>><SUP>+</SUP>] [<B>-from</B> <<VAR>date time</VAR>><SUP>+</SUP>] [<B>-to</B> <<VAR>date time</VAR>><SUP>+</SUP>]
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[<B>-localauth</B>] [<B>-cell</B> <<VAR>cell name</VAR>>] [<B>-help</B>]
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<B>backup dele</B> [<B>-d</B> <<VAR>dump id</VAR>><SUP>+</SUP>] [<B>-f</B> <<VAR>date time</VAR>><SUP>+</SUP>] [<B>-t</B> <<VAR>date time</VAR>><SUP>+</SUP>]
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[<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 deletedump</B> command deletes one or more dump records
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from the Backup Database. Either use the <B>-dumpid</B> argument to
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specify the dump ID number of one or more dumps, or use the <B>-from</B>
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and <B>-to</B> arguments to delete the records for all regular dumps
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created during the time period bracketed by the specified values.
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<P>Use this command to remove dump records that are incorrect (possibly
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because a dump operation was interrupted or failed), or that correspond to
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dumps that are expired or otherwise no longer needed.
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<P><STRONG>Cautions</STRONG>
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<P>The only way to remove the dump record for an appended dump is to remove
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the record for its initial dump, and doing so removes the records for all of
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the initial dump's associated appended dumps.
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<P>The only way to remove the record for a Backup Database dump (created with
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the <B>backup savedb</B> command) is to specify its dump ID number with
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the <B>-dumpid</B> argument. Using the <B>-from</B> and
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<B>-to</B> arguments never removes database dump records.
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<P>Removing records of a dump makes it impossible to restore data from the
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corresponding tapes or from any dump that refers to the deleted dump as its
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parent, directly or indirectly. That is, restore operations must begin
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with the full dump and continue with each incremental dump in order. If
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the records for a specific dump are removed, it is not possible to restore
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data from later incremental dumps unless the deleted records are restored by
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running the <B>backup scantape</B> command with the <B>-dbadd</B>
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flag.
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<P>If a dump set contains any dumps that were created outside the time range
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specified by the <B>-from</B> and <B>-to</B> arguments, the command
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does not delete any of the records associated with the dump set, even if some
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of them represent dumps created during the time range.
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<P><STRONG>Options</STRONG>
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<DL>
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<P><DT><B>-dumpid
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</B><DD>Specifies the dump ID of each dump record to delete. The
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corresponding dumps must be initial dumps; it is not possible to delete
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appended dump records directly, but only by deleting the record of their
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associated initial dump. Using this argument is the only way to delete
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records of Backup Database dumps (created with the <B>backup savedb</B>
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command).
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<P>Provide either this argument or the <B>-to</B> (and optionally
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<B>-from</B>) argument.
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<P><DT><B>-from
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</B><DD>Specifies the beginning of a range of dates; the record for any dump
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created during the indicated period of time is deleted.
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<P>Omit this argument to indicate the default of midnight (00:00 hours)
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on 1 January 1970 (UNIX time zero), or provide a date value in the format
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<VAR>mm/dd/yyyy</VAR> [<VAR>hh:MM</VAR>]. The month (<VAR>mm</VAR>),
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day (<VAR>dd</VAR>), and year (<VAR>yyyy</VAR>) are required. The hour and
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minutes (<VAR>hh</VAR>:<VAR>MM</VAR>) are optional, but if provided must be
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in 24-hour format (for example, the value <B>14:36</B> represents
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2:36 p.m.). If omitted, the time defaults to
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midnight (00:00 hours).
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<P>The <B>-to</B> argument must be provided along with this one.
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<TABLE><TR><TD ALIGN="LEFT" VALIGN="TOP"><B>Note:</B></TD><TD ALIGN="LEFT" VALIGN="TOP">A plus sign follows this argument in the command's syntax statement
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because it accepts a multiword value which does not need to be enclosed in
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double quotes or other delimiters, not because it accepts multiple
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dates. Provide only one date (and optionally, time) definition.
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</TD></TR></TABLE>
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<P><DT><B>-to
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</B><DD>Specifies the end of a range of dates; the record of any dump created
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during the range is deleted from the Backup Database.
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<P>Provide either the value <B>NOW</B> to indicate the current date and
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time, or a date value in the same format as for the <B>-from</B>
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argument. Valid values for the year (<VAR>yyyy</VAR>) range from
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<B>1970</B> to <B>2037</B>; higher values are not valid because
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the latest possible date in the standard UNIX representation is in February
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2038. The command interpreter automatically reduces any later date to
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the maximum value.
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<P>If the time portion (<VAR>hh:MM</VAR>) is omitted, it defaults to 59
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seconds after midnight (00:00:59 hours). Similarly, the
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<B>backup</B> command interpreter automatically adds 59 seconds to any
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time value provided. In both cases, adding 59 seconds compensates for
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how the Backup Database and <B>backup dumpinfo</B> command represent dump
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creation times in hours and minutes only. For example, the Database
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records a creation timestamp of <TT>20:55</TT> for any dump operation
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that begins between 20:55:00 and 20:55:59.
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Automatically adding 59 seconds to a time thus includes the records for all
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dumps created during that minute.
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<P>Provide either this argument, or the <B>-dumpid</B> argument.
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This argument is required if the <B>-from</B> argument is provided.
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<P><B>Caution:</B> Specifying the value <B>NOW</B> for this
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argument when the <B>-from</B> argument is omitted deletes all dump
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records from the Backup Database (except for Backup Database dump records
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created with the <B>backup savedb</B> command).
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<TABLE><TR><TD ALIGN="LEFT" VALIGN="TOP"><B>Note:</B></TD><TD ALIGN="LEFT" VALIGN="TOP">A plus sign follows this argument in the command's syntax statement
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because it accepts a multiword value which does not need to be enclosed in
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double quotes or other delimiters, not because it accepts multiple
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dates. Provide only one date (and optionally, time) definition.
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</TD></TR></TABLE>
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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>Output</STRONG>
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<P>At the conclusion of processing, the output lists the dump IDs of all dump
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records deleted in the following format:
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<PRE> The following dumps were deleted:
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<VAR>dump ID 1</VAR>
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<VAR>dump ID 2</VAR>
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<VAR>etc.</VAR>
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</PRE>
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<P><STRONG>Examples</STRONG>
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<P>The following command deletes the dump record with dump ID 653777462, and
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for any appended dumps associated with it:
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<PRE> % <B>backup deletedump -dumpid 653777462</B>
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The following dumps were deleted:
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653777462
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</PRE>
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<P>The following command deletes the Backup Database record of all dumps
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created between midnight on 1 January 1997 and 23:59:59 hours on
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31 December 1997:
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<PRE> % <B>backup deletedump -from 01/01/1997 -to 12/31/1997</B>
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The following dumps were deleted:
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598324045
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598346873
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...
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...
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653777523
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653779648
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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="auarf074.htm#HDRBK_DUMPINFO">backup dumpinfo</A>
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<P><A HREF="auarf087.htm#HDRBK_SCANTAPE">backup scantape</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="auarf067.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="auarf069.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><HR><B>
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<br>© <A HREF="http://www.ibm.com/">IBM Corporation 2000.</A> All Rights Reserved
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</B>
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