監控磁盤的性能

參考文章：

https://wiki.enchtex.info/howto/zabbix/zabbix_iostat_monitoring

https://blog.csdn.net/xiegh2014/article/details/70576180

https://blog.csdn.net/bobpen/article/details/53408214

創建好的模板：鏈接：https://pan.baidu.com/s/1-dNwl-yrRsSNgobWPvVflw 密碼：0j9u

一、agent端操作：

1、安裝iostat命令

yum install sysstat

2、創建腳本目錄

mkdir /etc/zabbix/scripts
cd /etc/zabbix/scripts/

3、腳本內容

vim disk_scan.sh
#!/bin/bash
diskarray=(`cat /proc/diskstats |grep -E "\bsd[abcdefg]\b|\bvd[abcdefg]\b"|grep -i "\b$1\b"|awk '{print $3}'|sort|uniq   2>/dev/null`)
length=${#diskarray[@]}
printf "{\n"
printf  '\t'"\"data\":["
for ((i=0;i<$length;i++))
do
         printf '\n\t\t{'
         printf "\"{#DISKNAME}\":\"${diskarray[$i]}\"}"
         if [ $i -lt $[$length-1] ];then
                 printf ','
         fi
done
printf  "\n\t]\n"
printf "}\n"

4、修改權限

chown root:zabbix -R /etc/zabbix/scripts/
chmod 750 /etc/zabbix/scripts/
chmod 550 /etc/zabbix/scripts/iostat.sh

5、腳本測試

[root@agent scripts]# sudo -u zabbix /usr/bin/sh /etc/zabbix/scripts/disk_scan.sh
{
    "data":[
        {"{#DISKNAME}":"sda"}
    ]
}
[root@agent scripts]#

6、使用iostat獲取硬盤性能信息，並將該信息寫入文本中

　　echo "* * * * * /usr/bin/iostat -mx > /tmp/iostat_output 2>&1" >>/var/spool/cron/root
　　echo "* * * * * sleep 20;/usr/bin/iostat -mx > /tmp/iostat_output 2>&1" >>/var/spool/cron/root
　　echo "* * * * * sleep 40;/usr/bin/iostat -mx > /tmp/iostat_output 2>&1" >>/var/spool/cron/root

7、添加下述內容至zabbix agent配置文件中

UserParameter=io.scandisk[*],/etc/zabbix/scripts/disk_scan.sh $1
UserParameter=io.rrqm[*],/usr/bin/tail /tmp/iostat_output |grep "\b$1\b"|tail -1|awk '{print $$2}'
UserParameter=io.wrqm[*],/usr/bin/tail /tmp/iostat_output |grep "\b$1\b"|tail -1|awk '{print $$3}'
UserParameter=io.rps[*],/usr/bin/tail /tmp/iostat_output |grep "\b$1\b"|tail -1|awk '{print $$4}'
UserParameter=io.wps[*],/usr/bin/tail /tmp/iostat_output |grep "\b$1\b" |tail -1|awk '{print $$5}'
UserParameter=io.rMBps[*],/usr/bin/tail /tmp/iostat_output |grep "\b$1\b" |tail -1|awk '{print $$6}'
UserParameter=io.wMBps[*],/usr/bin/tail /tmp/iostat_output |grep "\b$1\b" |tail -1|awk '{print $$7}'
UserParameter=io.avgrq-sz[*],/usr/bin/tail /tmp/iostat_output |grep "\b$1\b" |tail -1|awk '{print $$8}'
UserParameter=io.avgqu-sz[*],/usr/bin/tail /tmp/iostat_output |grep "\b$1\b" |tail -1|awk '{print $$9}'
UserParameter=io.await[*],/usr/bin/tail /tmp/iostat_output |grep "\b$1\b" |tail -1|awk '{print $$10}'
UserParameter=io.r_await[*],/usr/bin/tail /tmp/iostat_output |grep "\b$1\b" |tail -1|awk '{print $$11}'
UserParameter=io.w_await[*],/usr/bin/tail /tmp/iostat_output |grep "\b$1\b" |tail -1|awk '{print $$12}'
UserParameter=io.svctm[*],/usr/bin/tail /tmp/iostat_output |grep "\b$1\b" |tail -1|awk '{print $$13}'
UserParameter=io.util[*],/usr/bin/tail /tmp/iostat_output |grep "\b$1\b" |tail -1|awk '{print $$14}'

8、重啟zabbix-agent服務

systemctl restart zabbix-agent.service

二、服務器端操作如下

1、獲取數據測試

[root@zabbix-server zabbix]# zabbix_get -p 10050 -s 10.10.10.99 -k io.util[sda]
0.23
[root@zabbix-server zabbix]# zabbix_get -p 10050 -s 10.10.10.99 -k io.util[sda]
0.23
[root@zabbix-server zabbix]# zabbix_get -p 10050 -s 10.10.10.99 -k io.rps[sda]
0.00
[root@zabbix-server zabbix]# zabbix_get -p 10050 -s 10.10.10.99 -k io.rMBps[sda]
0.00