Re: DUMP script ..

Hi,

Having a general dump script is fairly tricky because dump wants you to
specify partitions based on their device name. e.g., /dev/hda1
/dev/hda2

Nonetheless, here's my dump script that I use to back up several
different Redhat and Fedora machines, and one ancient HP C180. It is
not intended to be elegant and there's absolutely no guarantee that it
works. I dump to an nfs mounted remote disk. I created it when I
was learning perl, so please excuse the horrible perl coding also.

You need to inspect and replace the lines containing: "$machine =~
m/<foo>/" "@parts = " (these are the partitions that you want to
backup) "$hold_path" (this is where the dumpfiles will go). It
creates customized filenames based on the machine being dumped, the
partition that got dumped, the date, and the dumplevel. I had to split
the dumpfiles because they were over 2 GB, and the older OSes couldn't
see the files over 2 GB easily. So the "| split" line near the end
splits it into 2 GB files. So you'd end up with foo.dumpaa,
foo.dumpab, ..., foo.dumpba, foo.dumpbb, ..., foo.dumpzz. To
recombine these files to a workable dump file: "cat foo.dumpaa
foo.dumpab ... foo.dumpzz > foo.dump"

Follow the man pages for appropriate flags.

--BEGIN--
#!/usr/bin/perl
# 2/16/2005 - BTJ
# This program makes a level $dumplevel backup of the files on this
$machine
# to a file $hold_path/$file_name on the holding disk.

# Basic instructions:
# Chose the $dumplevel and $type below depending on which dumplevel you
want
# and where you want it to go.

# --- backup dependent settings (chose right stuff!):
$dumplevel = "0";
$type = 'disk';
# ---

$machine = `hostname`; # no need to modify this, except for meso (?)
chop($machine);
print($machine);

if ($machine =~ m/meso/) {
@parts =
("vg00/lvol1","vg00/lvol3","vg00/lvol4","vg00/lvol5","vg00/lvol6","vg00/lvol7","vg00/lvol8","vg00/lvol9","vg01/lvol1","vg01/lvol2","vg01/lvol3
","vg02/lvol1");
$hold_path = "/ide6/backups";
} elsif ($machine =~ m/graupel/) {
@parts = ("hda1","hda5","hda3","hda2");
$hold_path = "/ide4/backups";
} elsif ($machine =~ m/vapor/) {
@parts = ("hdb1","hdb2","hdb5");
$hold_path = "/ide3/backups";
} elsif ($machine =~ m/cloud/) {
@parts = ("sda1","sda5","sda6","sda8");
$hold_path = "/ide5/backups";
} elsif ($machine =~ m/rain/) {
@parts = ("sda1","sda5","sda6","sda8");
$hold_path = "/ide6/backups";
}

# if we're backing up meso (HP C180), dump is different....
if ($machine =~ m/meso/) {
$flags = $dumplevel."udsf 40000 40000"; # arbitrary values, need to
be long enough to accomodate /data (largest) partition on one "virtual
tape" when d
umping to disk
} else {
$flags = "-$dumplevel -a -u -f";
}

($day, $month, $year) = (localtime)[3..5];
$month++;
if ($month <= 10) {$month = "0$month";}
if ($day <= 10) {$day = "0$day";}
$year = $year + 1900;
$dat = "$month$day$year"; #today's date

#Remove old dump files, you may want to modify this also, depending on
your dump strategy.
@allfiles = <$hold_path/$machine\_L*>;

foreach $file (@allfiles) {
print "`rm -f $file`\n";
`rm -f $file`;
}

# loop over $partitions
if ($type =~ m/disk/) {
foreach $part (@parts) {
($partn1,$partn2) = split(/\//,$part);
$partn = $partn1.$partn2;
$filename =
$machine."_"."L".$dumplevel."_".$partn."_".$dat.".dump";
print "`nice dump $flags - /dev/$part | split -b2000m -
$hold_path/$filename`\n";
`nice dump $flags - /dev/$part | split -b2000m -
$hold_path/$filename`;
}
}

--- END ---

LB wrote:
Hello all ..

I'm looking for a script that will utilize the DUMP command and can
completly back up a CentOS system in the event of a hard drive failure
using the restore command. This dump will not be done to tape, but to
another hard drive in the box. I will then have the dump archive moved
to a samba share where it will be backed up.

I can do all of this with the execption of the the DUMP script. :-P
figured i'd add some humor to the post .. But .. there are many scripts
on the net all over the place. But I think this would work,
http://dinsen.net/netbsd/dump but will this dump script recover my
system completly in the event of a hard drive failure?

I found one Gentoo script, but its very aimed toward Gentoo and Gentoo
is very different then other linux systems so I decided not to try it:
http://blinkeye.ch/mediawiki/index.php/GNU/Linux_System_Backup_Script_%28stage4%29

I just need a script that can basically backup a whole system and can
be restored just as easilly. The system is up and running as I said its
CentOS and its running at full opertation and live.

Any help is appreciated.

GNY

.

Relevant Pages

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