Additional scripts for Zabbix agent on Linux to discover and monitor several services
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#!/usr/bin/perl -w
use JSON;
opendir(my $dh, "/sys/block") or die "Couldn't open /sys/block: $!";
my @blocks = grep { $_ !~ m/^\./ } readdir($dh);
closedir($dh);
my $json;
foreach my $block (@blocks){
my $removable = 0;
if ( -e "/sys/block/$block/removable"){
open REMOVABLE, "/sys/block/$block/removable";
$removable = join "", <REMOVABLE>;
close REMOVABLE;
chomp($removable);
next if ($removable eq '1');
}
my $dev = '/dev/' . $block;
push @{$json->{data}}, { "{#BLOCKDEVICE}" => $dev };
}
print to_json($json);
exit(0);