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#!/usr/bin/perl -w
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# This script will backup the config of MegaRAID based
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# RAID controllers. The saved config can be restored with
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# MegaCli -CfgRestore -f /home/lbkp/mega_0.bin for example
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# It also create a backup of the config as text, so you can
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# manually check how things were configured at a certain point in time
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# If MegaCli is not installed, then the script does nothing
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use strict;
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my $megacli = undef;
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if (-x '/opt/MegaRAID/MegaCli/MegaCli64'){
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$megacli = '/opt/MegaRAID/MegaCli/MegaCli64';
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} elsif (-x '/opt/MegaRAID/MegaCli/MegaCli'){
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$megacli = '/opt/MegaRAID/MegaCli/MegaCli';
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}
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if (!$megacli){
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print "MegaCli not installed, nothing to do\n";
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exit 0;
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}
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my $adapters = 0;
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foreach (qx($megacli -adpCount -NoLog)) {
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if ( m/Controller Count:\s*(\d+)/ ) {
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$adapters = $1;
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last;
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}
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}
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foreach my $adp (0..$adapters-1){
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my $hba = 0;
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my $failgrouplist = 0;
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foreach my $line (qx($megacli -CfgDsply -a$adp -NoLog)) {
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if ( $line =~ m/Failed to get Disk Group list/ ) {
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$failgrouplist = 1;
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} elsif ( $line =~ m/Product Name:.*(JBOD|HBA)/ ) {
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$hba = 1;
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}
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}
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# Skip adapter if in HBA mode
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next if ($hba && $failgrouplist);
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# Save the config in binary format
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print "Saving config for adapter $adp\n";
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qx($megacli -CfgSave -f /home/lbkp/megaraid/cfg_$adp.bin -a$adp -NoLog);
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die "Failed to backup conf for adapter $adp\n" unless ($? == 0);
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# Now also save in text representation
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open TXT, ">/home/lbkp/megaraid/cfg_$adp.txt";
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print TXT foreach qx($megacli -CfgDsply -a$adp -NoLog);
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die "Failed to backup Cfg text description for adapter $adp\n" unless ($? == 0);
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close TXT;
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}
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