amgtar man page on Scientific

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AMGTAR(8)		System Administration Commands		     AMGTAR(8)

NAME
       amgtar - Amanda Application to interface with GNU Tar

DESCRIPTION
       Amgtar is an Amanda Application API script. It should not be run by
       users directly. It uses GNU Tar to backup and restore data.

PROPERTIES
       This section lists the properties that control amgtar´s functionality.
       See amanda-applications(7) for information on application properties
       and how they are configured.

       ATIME-PRESERVE

	   If "YES" (the default), amgtar use the --atime-preserve=system
	   option of gnutar to not update the atime of all files accessed; if
	   "NO", gnutar will updates the atime for all files accessed. This
	   property works only if you have gnutar 1.15.90 or newer, if not,
	   you must set ATIME_PRESERVE to "NO".

       CHECK-DEVICE

	   If "YES" (the default), amgtar checks that the device number
	   doesn´t change for each file. If "NO", changes in device number are
	   ignored.  To ignore device numbers, tar must support the
	   --no-check-device option (gnutar 1.19.90 and newer). This option is
	   needed for some filesystems and devices on which device numbers
	   change frequently, such as LVM or FiberChannel.

       DIRECTORY

	   If set, gnutar will backup from that directory instead of the
	   diskdevice set by the DLE.

       GNUTAR-LISTDIR

	   The directory where gnutar stores the database it uses to generate
	   incremental dumps.  The default is set when Amanda is built.

       GNUTAR-PATH

	   The path to the gnutar binary.  The default is set when Amanda is
	   built.

       ONE-FILE-SYSTEM

	   If "YES" (the default), do not allow gnutar to cross filesystem
	   boundaries. If "NO", gnutar will cross filesystem boundaries.  This
	   corresponds to the --one-filesystem option of gnutar.

       TAR-BLOCKSIZE

	   Block size of Nx512 bytes (default N=20).  This corresponds to the
	   --blocking-factor option of gnutar.

       SPARSE

	   If "YES" (the default), gnutar will store sparse files efficiently.
	   If "NO", then the --sparse option is not given to gnutar, and it
	   will not try to detect sparse files.

       EXIT-HANDLING

	   List which exit status of gtar are good or bad. eg. "1=GOOD 2=BAD",
	   exit status of 1 will produce a good backup, exit status of 2 will
	   give an error.

       NORMAL

	   List all regex (POSIX Extended Regular Expression syntax) that are
	   normal output from gtar. These output are in the "FAILED DUMP
	   DETAILS" section of the email report if the dump result is STRANGE
	   or FAILED. Default values:
	     "^could not open conf file"
	     "^Elapsed time:"
	     "^Throughput"
	     ": socket ignored$"
	     ": File .* shrunk by [0-9][0-9]* bytes, padding with zeros"
	     ": Cannot add file .*: No such file or directory$"
	     ": Error exit delayed from previous errors"
	   To treat one of these default patterns differently, specify it
	   explicitly in a different property.

       IGNORE

	   List all regex (POSIX Extended Regular Expression syntax) that
	   amanda ignore. These output are never in the email report. Default
	   values:
	     ": Directory is new$"
	     ": Directory has been renamed"
	   To treat one of these default patterns differently, specify it
	   explicitly in a different property.

       STRANGE

	   List all regex (POSIX Extended Regular Expression syntax) that are
	   strange output from gtar. All gtar output that doesn´t match a
	   normal or ignore regex are strange by default. The result of the
	   dump is STRANGE if gtar produce a strange output. These output are
	   in the "FAILED DUMP DETAILS" section of the email report.

EXAMPLE
	 define application-tool app_amgtar {
	   property "ATIME-PRESERVE" "NO"
	   property "CHECK-DEVICE" "YES"
	   property "GNUTAR-LISTDIR" "
	   property "GNUTAR-PATH" "/bin/tar"
	   property "ONE-FILE-SYSTEM" "YES"
	   property "TAR_BLOCKSIZE" "20"
	   property "SPARSE" "YES"
	   property "EXIT-HANDLING" "1=GOOD 2=BAD"
	   # change a default NORMAL regex to a STRANGE regex.
	   property "STRANGE" ": socket ignored$"
	   # add three new IGNORE regex
	   property "IGNORE" ": Directory is new$"
	   property append "IGNORE" ": Directory has been renamed"
	   property append "IGNORE" "file changed as we read it$"
	 }

SEE ALSO
       amanda.conf(5), amanda-applications(7)

AUTHORS
       Jean-Louis Martineau <martineau@zmanda.com>
	   Zmanda, Inc. (http://www.zmanda.com)

       Dustin J. Mitchell <dustin@zmanda.com>
	   Zmanda, Inc. (http://www.zmanda.com)

Amanda 2.6.1p2			  11/05/2009			     AMGTAR(8)
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