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[Savannah-hackers] submission of TARBACK Tape Backup Perl Script - savan
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nuke |
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[Savannah-hackers] submission of TARBACK Tape Backup Perl Script - savannah.nongnu.org |
Date: |
Sat, 27 Mar 2004 16:13:10 -0500 |
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A package was submitted to savannah.nongnu.org
This mail was sent to address@hidden, address@hidden
Bob Phipps <address@hidden> described the package as follows:
License: gpl
Other License:
Package: TARBACK Tape Backup Perl Script
System name: tarback
Type: non-GNU
Description:
TARBACK is a set of two Perl scripts for making periodic back ups of nominated
files and directories on tape. It uses TAR, and GZIP for compression. It
provides back up management by prompting for the right tape at the right time,
using the "Tower of Hanoi" tape rotation scheme. It has been written and
tested on a Linux system with a SCSI Travan tape drive and could be adapted for
other platforms provided that Perl is available.
Of the two scripts, the first, "tarback", is a timer and trigger module, and
can be left running continuously. This is the automatic mode and is launched
by the command line option "-a". In automatic mode, tarback looks at the
configuration file hourly to see whether a back up is due. If one is, it calls
the main part of TARBACK, "tarbackmain", which carries out the back up with
appropriate prompts to the user. After a back up is complete, tarbackmain drops
out and control returns to tarback. It is suggested that a command to launch
tarback, with the -a option, is placed in the start up directory if the machine
is likely to be restarted very often.
For initial setting up or changing scheme parameters, TARBACK is run without
the -a option. In this mode, tarback launches tarbackmain immediately, which
is then menu driven with many options, including setting up from scratch,
adding, viewing, removing and modifying schemes, or forcing a back up ahead of
time.
Typically there will be a single back-up "scheme". But if the need arises,
there may be any number of independent and named back up schemes in
simultaneous operation - all schemes being operated by the running of TARBACK
with its single configuration file.
Each such scheme will use from 1 to 8 sets of tapes. Each set of tapes will be
used in chronological rotation on the well established "Tower of Hanoi" system
- effectively a binary system such that some tapes will be archive copies from
much further in the past than others. At least 3 tape sets are recommended, but
four might be regarded as ideal. In the case of only one or two sets of tapes,
the Tower of Hanoi rotation scheme algorithm is trivial (in the mathematical
sense) but the scheme will still works.
By a "set of tapes" is meant the several tapes required to do a single data
back up. With capacious modern tapes, or if the user is selective as to what
data is backed up, one tape may be enough.
In summary, there may be any number of back-up schemes, each with a descriptive
name and with up to 8 tape sets (lettered A - H) used in rotation, with each
tape set consisting of one or more numbered tapes.
Tarback Web Site : www.tarback.uklinux.net
Other Software Required:
mt
Other Comments:
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