Zabbix监控磁盘I/O

自动发现磁盘不同的设备，如sdb,xda，vsda等通过脚本获取系统块设备的名称，然后保存到变量中，在通过zabbix客户端的自定义监控选项将监控的键值传给服务端

创建脚本目录：mkdir /etc/zabbix/scripts/创建搜索脚本：

[root@localhost scripts]# cat disk.pl 
#!/usr/bin/perl
#give disk dmname, returns Proxmox VM name
sub get_vmname_by_id
 {
 $vmname=`cat /etc/qemu-server/$_[0].conf | grep name | cut -d : -f 2`;
 $vmname =~ s/^s+//; #remove leading spaces
 $vmname =~ s/s+$//; #remove trailing spaces
return $vmname
 }
$first = 1;
print "{n";
print "t"data":[nn";
 
for (`cat /proc/diskstats`)
  {
  ($major,$minor,$disk) = m/^s*([0-9]+)s+([0-9]+)s+(S+)s.*$/;
  $dmnamefile = "/sys/dev/block/$major:$minor/dm/name";
  $vmid= "";
  $vmname = "";
  $dmname = $disk;
  $diskdev = "/dev/$disk";
#DM name
 if (-e $dmnamefile) {
    $dmname = `cat $dmnamefile`;
    $dmname =~ s/n$//; #remove trailing n
    $diskdev = "/dev/mapper/$dmname";
# VM name and ID
    if ($dmname =~ m/^.*--([0-9]+)--.*$/) {
    $vmid = $1;
     #$vmname = get_vmname_by_id($vmid);
                 }
     }
#print("$major $minor $disk $diskdev $dmname $vmid $vmname n"); 
print "t,n" if not $first;
  $first = 0;
 
  print "t{n";
  print "tt"{#DISK}":"$disk",n";
  print "tt"{#DMNAME}":"$dmname",n";
  print "tt"{#VMNAME}":"$vmname",n";
  print "tt"{#VMID}":"$vmid"n";
  print "t}n";
  }
 
print "nt]n";
print "}n";
[root@localhost scripts]# cat /etc/zabbix/scripts/
disk.pl   fdisk.sh  ls/       
[root@localhost scripts]# cat /etc/zabbix/scripts/disk.pl 
#!/usr/bin/perl
#give disk dmname, returns Proxmox VM name
sub get_vmname_by_id
 {
 $vmname=`cat /etc/qemu-server/$_[0].conf | grep name | cut -d : -f 2`;
 $vmname =~ s/^s+//; #remove leading spaces
 $vmname =~ s/s+$//; #remove trailing spaces
return $vmname
 }
$first = 1;
print "{n";
print "t"data":[nn";
 
for (`cat /proc/diskstats`)
  {
  ($major,$minor,$disk) = m/^s*([0-9]+)s+([0-9]+)s+(S+)s.*$/;
  $dmnamefile = "/sys/dev/block/$major:$minor/dm/name";
  $vmid= "";
  $vmname = "";
  $dmname = $disk;
  $diskdev = "/dev/$disk";
#DM name
 if (-e $dmnamefile) {
    $dmname = `cat $dmnamefile`;
    $dmname =~ s/n$//; #remove trailing n
    $diskdev = "/dev/mapper/$dmname";
# VM name and ID
    if ($dmname =~ m/^.*--([0-9]+)--.*$/) {
    $vmid = $1;
     #$vmname = get_vmname_by_id($vmid);
                 }
     }
#print("$major $minor $disk $diskdev $dmname $vmid $vmname n"); 
print "t,n" if not $first;
  $first = 0;
 
  print "t{n";
  print "tt"{#DISK}":"$disk",n";
  print "tt"{#DMNAME}":"$dmname",n";
  print "tt"{#VMNAME}":"$vmname",n";
  print "tt"{#VMID}":"$vmid"n";
  print "t}n";
  }
 
print "nt]n";
print "}n";
[root@localhost scripts]# 

[root@localhost scripts]# chown -R zabbix.zabbix  /etc/zabbix/scripts/
[root@localhost scripts]# chmod 755 /etc/zabbix/scripts/disk.pl

添加key

[root@localhost ~]# vim /etc/zabbix/zabbix_agentd.conf 
# diskio discovery
UserParameter=discovery.disks.iostats,/etc/zabbix/scripts/disk.pl
#读扇区的次数
UserParameter=custom.vfs.dev.read.sectors[*],cat /proc/diskstats | grep $1 | head -1 | awk '{print $$6}'
#写扇区次数
UserParameter=custom.vfs.dev.write.sectors[*],cat /proc/diskstats | grep $1 | head -1 | awk '{print $$10}'
#合并读完成次数
UserParameter=custom.vfs.dev.read.ops[*],cat /proc/diskstats | grep $1 | head -1 |awk '{print $$4}'
#合并写完成次数
UserParameter=custom.vfs.dev.write.ops[*],cat /proc/diskstats | grep $1 | head -1 | awk '{print $$8}'
#读花费的毫秒数
UserParameter=custom.vfs.dev.read.ms[*],cat /proc/diskstats | grep $1 | head -1 | awk '{print $$7}'
#写操作花费的毫秒数
UserParameter=custom.vfs.dev.write.ms[*],cat /proc/diskstats | grep $1 | head -1 | awk '{print $$11}'

zabbix-server test

[root@ds fonts]# zabbix_get -s 192.168.158.130 -k custom.vfs.dev.write.ms[sda1]
35110
[root@ds fonts]# zabbix_get -s 192.168.158.130 -k custom.vfs.dev.write.ms[sda2]
1070115
[root@ds fonts]# zabbix_get -s 192.168.158.130 -k custom.vfs.dev.write.ms[sda3]
0

导入模板：链接： 密码：isij修改如图：最终效果图