Provided by: amanda-server_3.3.6-4.1_i386 bug

NAME

       amplot - visualize the behavior of Amanda

SYNOPSIS

       amplot [-b] [-c] [-e] [-g] [-l] [-p] [-t T] amdump_files

DESCRIPTION

       Amplot reads an amdump output file that Amanda generates each run (e.g.
       amdump.1) and translates the information into a picture format that may
       be used to determine how your installation is doing and if any
       parameters need to be changed.  Amplot also prints out amdump lines
       that it either does not understand or knows to be warning or error
       lines and a summary of the start, end and total time for each backup
       image.

       Amplot is a shell script that executes an awk program (amplot.awk) to
       scan the amdump output file. It then executes a gnuplot program
       (amplot.g) to generate the graph. The awk program is written in an
       enhanced version of awk, such as GNU awk (gawk(1) version 2.15 or
       later) or nawk(1).

       During execution, amplot generates a few temporary files that gnuplot
       uses. These files are deleted at the end of execution.

       See the amanda(8) man page for more details about Amanda.

OPTIONS

       -b
           Generate b/w postscript file (need -p).

       -c
           Compress amdump_files after plotting.

       -e
           Extend the X (time) axis if needed.

       -g
           Direct gnuplot output directly to the X11 display (default).

       -p
           Direct postscript output to file YYYYMMDD.ps (opposite of -g).

       -l
           Generate landscape oriented output (needs -p).

       -t T
           Set the right edge of the plot to be T hours.

       The amdump_files may be in various compressed formats (compress, gzip,
       pact, compact).

INTERPRETATION

       The figure is divided into a number of regions. There are titles on the
       top that show important statistical information about the configuration
       and from this execution of amdump. In the figure, the X axis is time,
       with 0 being the moment amdump was started. The Y axis is divided into
       5 regions:

       QUEUES: How many backups have not been started, how many are waiting on
       space in the holding disk and how many have been transferred
       successfully to tape.

       %BANDWIDTH: Percentage of allowed network bandwidth in use.

       HOLDING DISK: The higher line depicts space allocated on the holding
       disk to backups in progress and completed backups waiting to be written
       to tape. The lower line depicts the fraction of the holding disk
       containing completed backups waiting to be written to tape including
       the file currently being written to tape. The scale is percentage of
       the holding disk.

       TAPE: Tape drive usage.

       %DUMPERS: Percentage of active dumpers.

       The idle period at the left of the graph is time amdump is asking the
       machines how much data they are going to dump. This process can take a
       while if hosts are down or it takes them a long time to generate
       estimates.

BUGS

       Reports lines it does not recognize, mainly error cases but some are
       legitimate lines the program needs to be taught about.

SEE ALSO

       amanda(8), amdump(8), gnuplot(1), compress(1), gzip(1)

       The Amanda Wiki: : http://wiki.zmanda.com/

AUTHORS

       Olafur Gudmundsson <ogud@tis.com>
           Trusted Information Systems

       Stefan G. Weichinger <sgw@amanda.org>