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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="auarf072.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="auarf074.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="HDRBK_DUMP" HREF="auarf002.htm#ToC_87">backup dump</A></H2>
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-<P><STRONG>Purpose</STRONG>
-<P>Creates a dump (dumps a volume set at a particular dump level)
-<P><STRONG>Synopsis</STRONG>
-<PRE><B>backup dump</B> [<B>-volumeset</B> <<VAR>volume set name</VAR>>] [<B>-dump</B> <<VAR>dump level name</VAR>>]
- [<B>-portoffset</B> <<VAR>TC port offset</VAR>>] [<B>-at</B> <<VAR>Date/time to start dump</VAR>><SUP>+</SUP>]
- [<B>-append</B>] [<B>-n</B>] [<B>-file</B> <<VAR>load file</VAR>>]
- [<B>-localauth</B>] [-<B>cell</B> <<VAR>cell name</VAR>>] [<B>-help</B>]
-
-<B>backup dump</B> [<B>-v</B> <<VAR>volume set name</VAR>>] [<B>-d</B> <<VAR>dump level name</VAR>>]
- [<B>-p</B> <<VAR>TC port offset</VAR>>] [<B>-at</B> <<VAR>Date/time to start dump</VAR>><SUP>+</SUP>]
- [<B>-ap</B>] [<B>-n</B>] [<B>-f</B> <<VAR>load file</VAR>>] [<B>-l</B>] [<B>-c</B> <<VAR>cell name</VAR>>] [<B>-h</B>]
-</PRE>
-<P><STRONG>Description</STRONG>
-<P>The <B>backup dump</B> command either dumps the volume set specified by
-the <B>-volumeset</B> argument at the dump level specified by the
-<B>-dump</B> argument and creates a Backup Database dump record about it,
-or executes the dump instructions listed in the file named by the
-<B>-file</B> argument. The Tape Coordinator indicated by the
-<B>-portoffset</B> argument (or on each command in the file) executes the
-operation.
-<P>(If the <B>FILE YES</B> instruction appears in the
-<B>/usr/afs/backup/CFG_</B><VAR>device_name</VAR> file on the Tape
-Coordinator machine associated with the specified port offset, then the Backup
-System dumps data to the backup data file listed for that port offset in the
-Tape Coordinator's <B>/usr/afs/backup/tapeconfig</B> file, rather
-than to tape. For the sake of clarity, the following text refers to
-tapes only, but the Backup System handles backup data files in much the same
-way.)
-<P>The term <I>dumping</I> refers to copying a collection of data to tape
-or a backup data file, and the resulting collection is termed a
-<I>dump</I>. The set of tapes that contain one or more dumps is
-called a <I>dump set</I>. The first dump in a dump set is its
-<I>initial dump</I>, and any dumps subsequently added to the dump set (by
-use of the <B>-append</B> argument) are <I>appended dumps</I>.
-Creating appended dumps is optional, and appended dumps can be of different
-volume sets, and at different dump levels, than the initial dump.
-<P>A <I>full dump</I>, created at a full dump level in the dump hierarchy,
-contains all of the data that existed at the time of the dump in the volumes
-belonging to the volume set. An <I>incremental dump</I>, created at
-an incremental dump level, contains only data that has changed since the
-volume set was dumped at the incremental level's <I>parent dump
-level</I> (the dump level immediately above the incremental level in the
-hierarchy), which can be a full or incremental level. More
-specifically, an incremental dump includes only the files and directories that
-have modification timestamps later than the <I>clone date</I> of the
-volume included at the parent dump level. For backup and read-only
-volumes, the clone date is the time at which the volume was cloned from its
-read/write source before being included in the parent dump; for
-read/write volumes, it represents the time at which the volume was locked for
-inclusion in the parent dump. The clone date appears in the <VAR>clone
-date</VAR> field of the output from the <B>backup volinfo</B>
-command. As an example, an incremental dump at the
-<B>/full/week1/thursday</B> level includes only files and directories that
-have changed since the volume set was dumped at the <B>/full/week1</B>
-level.
-<P><B>Initiating different types of dump operations</B>
-<P>To initiate a dump operation that is to start as soon as the relevant Tape
-Coordinator is available, provide only the <B>-volumeset</B>,
-<B>-dump</B>, <B>-portoffset</B>, and optionally <B>-append</B>
-options. To schedule a single <B>backup dump</B> command to execute
-in the future, also include the <B>-at</B> argument to specify the start
-time.
-<P>To append a dump to an existing dump set, include the <B>-append</B>
-flag. The Backup System imposes the following conditions on appended
-dumps:
-<UL>
-<P><LI>If writing to tape, the Tape Coordinator checks that it is the final one
-in a dump set for which there are complete and valid tape and dump records in
-the Backup Database. If not, it rejects the tape and requests an
-acceptable one. The operator can use the <B>-dbadd</B> argument to
-the <B>backup scantape</B> command to insert the necessary records into
-the database.
-<P><LI>The most recent dump on the tape or in the backup data file must have
-completed successfully.
-<P><LI>The dump set must begin with an initial dump that is recorded in the
-Backup Database. If there are no dumps on the tape, then the Backup
-System treats the dump operation as an initial dump and imposes the relevant
-requirements (for example, checks the AFS tape name if appropriate).
-</UL>
-<P>To schedule multiple dump operations, list the operations in the file named
-by the <B>-file</B> argument. Optionally include the <B>-at</B>
-argument to specify when the <B>backup</B> command interpreter reads the
-file; otherwise it reads it immediately. Do not combine the
-<B>-file</B> argument with the command's first three arguments or the
-<B>-append</B> or <B>-n</B> flags. The commands in the file can
-include any of the <B>backup dump</B> command's arguments, including
-the <B>-at</B> argument to schedule them to run even later in the
-future.
-<P>To generate a list of the volumes included in a dump, without actually
-dumping them, combine the <B>-n</B> flag with the options to be used on
-the actual command.
-<P><B>How the Backup System executes a dump operation</B>
-<P>Before beginning a dump operation, the Backup System verifies that there is
-a Backup Database entry for the volume set, dump level, and port
-offset. If the command is correctly formed and issued in interactive
-mode, it is assigned a job number and added to the jobs list. List jobs
-in interactive mode by using the <B>(backup) jobs</B> command;
-terminate them with the <B>(backup) kill</B> command.
-<P>After obtaining the list of volumes to dump from the Volume Location (VL)
-Server, the Backup System sorts the list by site (server and
-partition). It groups volumes from the same site together in the dump
-to minimize the number of times the operator must change tapes during restore
-operations.
-<P>The dependence of an incremental dump on its parent means that a valid
-parent dump must already exist for the Backup System to create its child
-incremental dump. If the Backup System does not find a record of a dump
-created at the immediate parent dump level, it looks in the Backup Database
-for a dump created at one level higher in the hierarchy, and so on, up to the
-full dump level if necessary. It creates an incremental dump at the
-level one below the lowest valid parent dump set that it finds. If it
-fails to find even a full dump, it dumps the volume set at the full dump
-level.
-<P>If the Backup System is unable to access a volume during a dump operation,
-it skips the volume and dumps the remaining volumes from the volume
-set. Possible reasons a volume is inaccessible include server machine
-or process outages, or that the volume was moved between the time the Volume
-Location (VL) Server generated the list of sites for the volume in the volume
-set and the time the Backup System actually attempts to dump the data in
-it. After the first dumping pass, the Backup System attempts to dump
-each volume it skipped. If it still cannot dump a volume and the
-<B>ASK NO</B> instruction does not appear in the
-<B>CFG_</B><VAR>device_name</VAR> file, it queries the operator as to
-whether it needs to attempt to dump the volume again, omit the volume from the
-dump, or halt the dump operation altogether. When prompted, the
-operator can attempt to solve whatever problem prevented the Backup System
-from accessing the volumes. If the <B>ASK NO</B> instruction
-appears in the <B>CFG_</B><VAR>device_name</VAR> file, the Backup System
-omits the volume from the dump.
-<P>Before scheduling a dump operation, the Backup System verifies that the
-date specified by the <B>-at</B> argument is in the future, and checks the
-validity of the volume set, dump level and port offset as for a regular dump
-operation. It checks the validity of the parameters again just before
-actually running the scheduled operation.
-<P>Before writing an initial dump to a tape that does not have a permanent
-name on the label, the Backup System checks that the AFS tape name on the
-label is acceptable. If desired, disable name checking by including the
-<B>NAME_CHECK NO</B> instruction in the
-<B>CFG_</B><VAR>device_name</VAR> file.
-<P>If AFS tape name checking is enabled, the Backup System accepts the
-following three types of values for the AFS tape name. If the name on
-the label does not conform, the Backup System obtains a tape with an
-acceptable label by invoking the <B>MOUNT</B> instruction in the
-<B>CFG_</B><VAR>device_name</VAR> file or prompting the operator.
-<OL TYPE=1>
-<P><LI>A name of the form
-<VAR>volume_set_name.dump_level_name.tape_index</VAR>, where
-<VAR>volume_set_name</VAR> matches the value of the <B>-volumeset</B>
-argument, <VAR>dump_level_name</VAR> matches the last element in the pathname
-value of the <B>-dump</B> argument, and <VAR>tape_index</VAR> reflects the
-tape's place in a multitape dump set. As an example, the first
-tape in a dump set for which the initial dump is of volume set <B>user</B>
-at the dump level <B>/sunday2/monday</B> has AFS tape name
-<B>user.monday.1</B>. If the label records this type
-of AFS tape name, the Backup System retains the AFS tape name and writes the
-dump to the tape.
-<P><LI>The string <TT><NULL></TT>, which usually indicates that a backup
-operator has used the <B>backup labeltape</B> command to write a label on
-the tape, but did not include the <B>-name</B> argument to assign an AFS
-tape name. Presumably, the operator did include the <B>-pname</B>
-argument to assign a permanent name. If the label records a
-<TT><NULL></TT> value, the Backup System constructs and records on the
-label the appropriate AFS tape name, and writes the dump on the tape.
-<P><LI>No value at all, because the tape has never been labeled or used in the
-Backup System. As when the AFS tape name is <TT><NULL></TT>, the
-Backup System constructs and records on the label the appropriate AFS tape
-name, and writes the dump on the tape.
-</OL>
-<P>To determine how much data it can write to a tape, the Tape Coordinator
-reads the capacity recorded on the tape's label (placed there by
-including the <B>-size</B> argument to the <B>backup labeltape</B>
-command). If the label's capacity field is empty, the Tape
-Coordinator uses the capacity recorded for the specified port offset in the
-local <B>tapeconfig</B> file. If the capacity field in the
-<B>tapeconfig</B> file is also empty, the Tape Coordinator uses the
-maximum capacity of 2 TB.
-<P>During a dump operation, the Tape Coordinator tracks how much data it has
-written and stops shortly before it reaches what it believes is the
-tape's capacity. If it is in the middle of writing the data for a
-volume when it reaches that point, it writes a special marker that indicates
-an interrupted volume and continues writing the volume on the next
-tape. It can split a volume this way during both an initial and an
-appended dump, and the fact that the volume resides on multiple tapes is
-automatically recorded in the Backup Database.
-<P>If the tape is actually larger than the expected capacity, then the Tape
-Coordinator simply does not use the excess tape. If the tape is smaller
-than the expected capacity, the Tape Coordinator can reach the end-of-tape
-(EOT) unexpectedly while it is writing data. If the Tape Coordinator is
-in the middle of the writing data from a volume, it obtains a new tape and
-rewrites the entire contents of the interrupted volume to it. The data
-from the volume that was written to the previous tape remains there, but is
-never used.
-<P>The Backup System allows recycling of tapes (writing a new dump set over an
-old dump set that is no longer needed), but imposes the following
-conditions:
-<UL>
-<P><LI>All dumps in the old dump set must be expired. The Backup System
-always checks expiration dates, even when name checking is disabled.
-<P><LI>If the tape to be recycled does not have a permanent name and name
-checking is enabled, then the AFS tape name derived from the new initial
-dump's volume set name and dump level name must match the AFS tape name
-already recorded on the label.
-<P><LI>The tape cannot already have data on it that belongs to the dump currently
-being performed, because that implies that the operator or automated tape
-device has not removed the previous tape from the drive, or has mistakenly
-reinserted it. The Tape Coordinator generates the following message and
-attempts to obtain another tape:
-<PRE> Can't overwrite tape containing the dump in progress
-
-</PRE>
-<P><LI>The tape cannot contain data from a parent dump of the current
-(incremental) dump, because overwriting a parent dump makes it impossible to
-restore data from the current dump. The Tape Coordinator generates the
-following message and attempts to obtain another tape:
-<PRE> Can't overwrite the parent dump <VAR>parent_name</VAR> (<VAR>parent_dump_ID</VAR>)
-
-</PRE>
-</UL>
-<P>To recycle a tape before all dumps on it have expired or if the AFS tape
-name is wrong, use the <B>backup labeltape</B> command to overwrite the
-tape's label and remove all associated tape and dump records from the
-Backup Database.
-<P>The Tape Coordinator's default response to this command is to access
-the first tape by invoking the <B>MOUNT</B> instruction in the
-<B>CFG_</B><VAR>device_name</VAR> file, or by prompting the backup operator
-to insert the tape if there is no <B>MOUNT</B> instruction.
-However, if the <B>AUTOQUERY NO</B> instruction appears in the
-<B>CFG_</B><VAR>device_name</VAR> file, or if the issuer of the
-<B>butc</B> command included the <B>-noautoquery</B> flag, the Tape
-Coordinator instead expects the tape to be in the device already. If it
-is not, the Tape Coordinator invokes the <B>MOUNT</B> instruction or
-prompts the operator. It also invokes the <B>MOUNT</B> instruction
-or prompts for any additional tapes needed to complete the dump
-operation; the issuer must arrange to provide them.
-<P><STRONG>Cautions</STRONG>
-<P>If a dump operation is interrupted or fails for any reason, data from all
-volumes written to tape before the interrupt are valid can be used in a
-restore operation. The Backup Database includes an entry for the failed
-dump and for each volume that was successfully dumped. See the <I>AFS
-Administration Guide</I> for information on dealing with interrupted
-dumps.
-<P>If dumping to tape rather than a backup data file, it is best to use only
-compatible tape devices (ones that can read the same type of tape).
-Using compatible devices greatly simplifies restore operations. The
-<B>-portoffset</B> argument to the <B>backup diskrestore</B> and
-<B>backup volsetrestore</B> commands accepts multiple port offset numbers,
-but the Backup System uses the first listed port offset when restoring all
-full dumps, the second port offset when restoring all level 1 dumps, and so
-on. At the very least, use compatible tape devices to perform dumps at
-each level. If compatible tape devices are not used, the <B>backup
-volrestore</B> command must be used to restore one volume at a time.
-<P>Valid (unexpired) administrative tokens must be available to the
-<B>backup</B> command interpreter both when it reads the file named by the
-<B>-file</B> argument and when it runs each operation listed in the
-file. Presumably, the issuer is scheduling dumps for times when no
-human operator is present, and so must arrange for valid tokens to be
-available on the local machine. One option is to issue all commands (or
-run all scripts) on file server machines and use the <B>-localauth</B>
-flag on the <B>backup</B> and <B>vos</B> commands. To protect
-against improper access to the machine or the tokens, the machine must be
-physically secure (perhaps even more protected than a Tape Coordinator machine
-monitored by a human operator during operation). Also, if an unattended
-dump requires multiple tapes, the operator must properly configure a tape
-stacker or jukebox and the device configuration file.
-<P>When the command is issued in regular (non-interactive) mode, the command
-shell prompt does not return until the dump operation completes. To
-avoid having to open additional connections, issue the command in interactive
-mode, especially when including the <B>-at</B> argument to schedule dump
-operations.
-<P><STRONG>Options</STRONG>
-<DL>
-<P><DT><B>-volumeset
-</B><DD>Names the volume set to dump. The <B>-dump</B> argument must be
-provided along with this one; do not combine them with the
-<B>-file</B> argument. If using a temporary volume set, the
-<B>vos dump</B> command must be issued within the interactive session in
-which the <B>backup addvolset</B> command was issued with the
-<B>-temporary</B> flag.
-<P><DT><B>-dump
-</B><DD>Specifies the complete pathname of the dump level at which to dump the
-volume set. The <B>-volumeset</B> argument must be provided along
-with this one; do not combine them with the <B>-file</B>
-argument.
-<P><DT><B>-portoffset
-</B><DD>Specifies the port offset number of the Tape Coordinator handling the
-tapes for this operation. It must be provided unless the default value
-of 0 (zero) is appropriate; do not combine it with the <B>-file</B>
-argument.
-<P><DT><B><B>-at</B>
-</B><DD>Specifies the date and time in the future at which to run the command, or
-to read the file named by the <B>-file</B> argument. Provide a
-value in the format <VAR>mm/dd/yyyy</VAR> [<VAR>hh:MM</VAR>], where the
-month (<VAR>mm</VAR>), day (<VAR>dd</VAR>), and year (<VAR>yyyy</VAR>) are
-required. 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 February 2038. The
-Backup System automatically reduces any later date to the maximum
-value.
-<P>The hour and minutes (<VAR>hh:MM</VAR>) are optional, but if provided
-must be in 24-hour format (for example, the value <B>14:36</B>
-represents 2:36 p.m.). If omitted, the time
-defaults to midnight (00:00 hours).
-<P>As an example, the value <B>04/23/1999 20:20</B> schedules the
-command for 8:20 p.m. on 23 April 1999.
-<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
-because it accepts a multiword value which does not need to be enclosed in
-double quotes or other delimiters, not because it accepts multiple
-dates. Provide only one date (and optionally, time) definition.
-</TD></TR></TABLE>
-<P><DT><B>-append
-</B><DD>Appends the dump onto the end of a tape that already contains data from
-another dump. However, if the tape is not in fact part of an existing
-dump set, the Backup System creates a new dump set using the parameters of
-this dump. If the tape is not the last tape in the dump set, the Tape
-Coordinator prompts for insertion of the appropriate tape. Do not
-combine this argument with the <B>-file</B> argument.
-<P><DT><B>-n
-</B><DD>Displays the names of volumes to be included in the indicated dump,
-without actually performing the dump operation. Do not combine this
-argument with the <B>-file</B> argument.
-<P><DT><B>-file
-</B><DD>Specifies the local disk or AFS pathname of a file containing
-<B>backup</B> commands. The Backup System reads the file
-immediately, or at the time specified by the <B>-at</B> argument if it is
-provided. A partial pathname is interpreted relative to the current
-working directory.
-<P>Place each <B>backup dump</B> command on its own line in the indicated
-file, using the same syntax as for the command line, but without the word
-<B>backup</B> at the start of the line. Each command must include a
-value for the <B>-volumeset</B> and <B>-dump</B> arguments, and for
-the <B>-portoffset</B> argument unless the default value of 0 is
-appropriate. Commands in the file can also include any of the
-<B>backup dump</B> command's optional options. In the
-following example file, the first command runs as soon as the Backup System
-reads the file, whereas the other commands are themselves scheduled; the
-specified date and time must be later than the date and time at which the
-Backup System reads the file.
-<PRE> dump user /sunday1/wednesday -port 1
- dump sun4x_56 /sunday1/friday -port 2 -at 04/08/1999
- dump sun4x_55 /sunday1/friday -port 2 -at 04/08/1999 02:00 -append
-
-</PRE>
-<P>
-<P>Do not combine this argument with the <B>-volumeset</B>,
-<B>-dump</B>, <B>-portoffset</B>, <B>-append</B>, or <B>-n</B>
-options.
-<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>backup</B> command
-interpreter presents it to the Backup Server, Volume Server and VL Server
-during mutual authentication. Do not combine this flag with the
-<B>-cell</B> argument. For more details, see the introductory
-<B>backup</B> reference page.
-<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>backup</B> reference page.
-<P><DT><B>-help
-</B><DD>Prints the online help for this command. All other valid options
-are ignored.
-</DL>
-<P><STRONG>Output</STRONG>
-<P>The command interpreter first generates a list of the volumes to be
-included in the dump by matching the entries in the volume set against the
-volumes listed in the Volume Location Database (VLDB). It prints the
-list following the header:
-<PRE> Preparing to dump the following volumes:
-
-</PRE>
-<P>The following message then indicates that the command interpreter has
-passed the dump request to the appropriate Tape Coordinator for
-processing:
-<PRE> Starting dump.
-
-</PRE>
-<P>If the issuer includes the <B>-n</B> flag, the output is of the
-following form:
-<PRE> Starting dump of volume set '<VAR>volume set</VAR>' (dump set '<VAR>dump level</VAR>')
- Total number of volumes : <VAR>number dumped</VAR>
- Would have dumped the following volumes:
- <VAR>list_of_volumes</VAR>
-
-</PRE>
-<P>where <VAR>list_of_volumes</VAR> identifies each volume by name and volume ID
-number.
-<P>If the Tape Coordinator is unable to access a volume, it prints an error
-message in its window and records the error in its log and error files.
-<P><STRONG>Examples</STRONG>
-<P>The following command dumps the volumes in the volume set called
-<B>user</B> at the dump level <B>/full/sunday2/monday</B>. The
-issuer places the necessary tapes in the device with port offset 5.
-<PRE> % <B>backup dump -volumeset user -dump /full/sunday2/monday -portoffset 5</B>
- Preparing to dump the following volumes:
- user.jones.backup 387623900
- user.pat.backup 486219245
- user.smith.backup 597315841
- . .
- . .
- Starting dump.
-
-</PRE>
-<P>The following command displays the list of volumes to be dumped when the
-user dumps the <B>sys_sun</B> volume set at the <B>/full</B> dump
-level.
-<PRE> % <B>backup dump -volumeset sys_sun -dump /full -n</B>
- Starting dump of volume set 'sys_sun' (dump set '/full')
- Total number of volumes: 24
- Would have dumped the following volumes:
- sun4x_56 124857238
- sun4x_56.bin 124857241
- . .
- . .
- sun4x_55 124857997
- . .
- . .
-
-</PRE>
-<P>The following command schedules a dump of the volumes in the volume set
-<B>user</B> at the dump level <B>/sunday2/monday1</B> for 11:00
-p.m. on 14 June 1999. The appropriate Tape Coordinator
-has port offset 0 (zero), so that argument is omitted.
-<PRE> % <B>backup dump -volumeset user -dump /sunday2/monday1 -at 06/14/1999 23:00</B>
-
-</PRE>
-<P><STRONG>Privilege Required</STRONG>
-<P>The issuer must be listed in the <B>/usr/afs/etc/UserList</B> file on
-every machine where the Backup Server or Volume Location (VL) Server is
-running, and on every file server machine that houses an affected
-volume. 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><STRONG>Related Information</STRONG>
-<P><A HREF="auarf060.htm#HDRBK_INTRO">backup</A>
-<P><A HREF="auarf061.htm#HDRBK_ADDDUMP">backup adddump</A>
-<P><A HREF="auarf063.htm#HDRBK_ADDVOLENTRY">backup addvolentry</A>
-<P><A HREF="auarf064.htm#HDRBK_ADDVOLSET">backup addvolset</A>
-<P><A HREF="auarf072.htm#HDRBK_DISKRESTORE">backup diskrestore</A>
-<P><A HREF="auarf079.htm#HDRBK_LABELTAPE">backup labeltape</A>
-<P><A HREF="auarf091.htm#HDRBK_VOLRESTORE">backup volrestore</A>
-<P><A HREF="auarf126.htm#HDRBUTC">butc</A>
-<P>
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