IO监控
1、磁盘状态：cat /proc/diskstats
server ui 配置
导入模板
添加自动发现规则(如果没有则创建)
agent 配置
配置文件
vim /etc/zabbix/zabbix_agentd.conf.d/userparameter_iostat.conf
UserParameter=custom.vfs.dev.discovery,/etc/zabbix/zabbix_scripts/dev-discovery.sh
UserParameter=iostat[*],/etc/zabbix/zabbix_scripts/iostat-chk.sh $1 $2
UserParameter=disk.status[*],/bin/bash /etc/zabbix/zabbix_scripts/check_disk.sh -d $1 -o $2
脚本
cat /etc/zabbix/zabbix_scripts/dev-discovery.sh
#!/bin/bash
DEVICES=`iostat | awk '{ if ($1 ~ "^([shxv]|xv)d[a-z]$") { print $1 } }'`
COUNT=`echo "$DEVICES" | wc -l`
INDEX=0
echo '{"data":['
echo "$DEVICES" | while read LINE; do
echo -n '{"{#DEVNAME}":"'$LINE'"}'
INDEX=`expr $INDEX + 1`
if [ $INDEX -lt $COUNT ]; then
echo ','
fi
done
echo ']}'
或
#!/bin/bash
diskarray=(`cat /proc/diskstats |grep -E "\bsd[abcdefg]\b|\bxvd[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<$length;i++))
do
printf '\n\t\t{'
printf "\"{#DISK_NAME}\":\"${diskarray[$i]}\"}"
if [ $i -lt $[$length-1] ];then
printf ','
fi
done
printf "\n\t]\n"printf "}\n"
cat /etc/zabbix/zabbix_scripts/check_disk.sh
#!/bin/sh
# 80 sda 76880282531 8117316 937263519846 4237854729 62989000438 35668103347 777694636224 1190396494 3 2895102137 899093508
while getopts "d:o:" opt
do
case $opt in
d ) disk=$OPTARG;;
o ) option=$OPTARG;;
? )
echo 'parameter is wrong!'
exit 1;;
esac
done
if [ ! "${disk}" ] || [ ! "${option}" ];then
echo "parameter is null"
exit 1
fi
if [[ ${option} == "read" ]];then
cat /proc/diskstats |grep "${disk} "|awk '{print $6}'
elif [[ ${option} == "write" ]];then
cat /proc/diskstats |grep "${disk} "|awk '{print $10}'
elif [[ ${option} == "readops" ]];then
cat /proc/diskstats |grep "${disk} "|awk '{print $4}'
elif [[ ${option} == "writeops" ]];then
cat /proc/diskstats |grep "${disk} "|awk '{print $8}'
elif [[ ${option} == "readtime" ]];then
cat /proc/diskstats |grep "${disk} "|awk '{print $7}'
elif [[ ${option} == "writetime" ]];then
cat /proc/diskstats |grep "${disk} "|awk '{print $11}'
fi
/etc/init.d/zabbix_agentd restart
cat /proc/diskstats
设备号 编号 设备 读完成次数 合并完成次数 读扇区次数 读操作花费毫秒数 写完成次数 合并写完成次数 写扇区次数 写操作花费的毫秒数 正在处理的输入/输出请求数 输入/输出操作花费的毫秒数 输入/输出操作花费的加权毫秒数。
8 0 sda 437179787 111140 88148407612 256090773 504526543 4574433 57747952507 870869581 0 215482123 1126127633
从diskstats采集，磁盘使用率计算方式为：
两次采集的输入/输出操作花费的毫秒数之差 / 采集间隔时间
例如：第一次采集输入/输出操作花费的毫秒数为90258834，间隔10秒后采集的值为90258710
那么磁盘使用率为 （90258710ms - 90258834ms）/ 10*1000ms = 0.0124，也就是1.24%
参考：
https://www.aliyun.com/jiaocheng/433252.html
https://www.cnblogs.com/zhangs1986/p/8118788.html
https://www.cnblogs.com/dachenzi/p/8232001.html
2. IOSTAT状态
server ui 配置
导入模板
添加自动发现规则(如果没有则创建)
agent 配置
配置文件
脚本
自动发现脚本：
cat /etc/zabbix/zabbix_scripts/dev-discovery.sh
#!/bin/bash
DEVICES=`iostat | awk '{ if ($1 ~ "^([shxv]|xv)d[a-z]$") { print $1 } }'`
COUNT=`echo "$DEVICES" | wc -l`
INDEX=0
echo '{"data":['
echo "$DEVICES" | while read LINE; do
echo -n '{"{#DEVNAME}":"'$LINE'"}'
INDEX=`expr $INDEX + 1`
if [ $INDEX -lt $COUNT ]; then
echo ','
fi
done
echo ']}'
数据采集脚本
cat /etc/zabbix/zabbix_scripts/disk_status.sh
#/bin/sh
device=$1
item=$2
/usr/bin/iostat -dxkt 2 2 > /var/log/zabbix/iostat_output 2>/dev/null
case $item in
rrqm)
/usr/bin/tail -n20 /tmp/iostat_output |grep "\b$device\b"|tail -1|awk '{print $2}'
;;
wrqm)
/usr/bin/tail -n20 /tmp/iostat_output |grep "\b$device\b"|tail -1|awk '{print $3}'
;;
rps)
/usr/bin/tail -n20 /tmp/iostat_output |grep "\b$device\b"|tail -1|awk '{print $4}'
;;
wps)
/usr/bin/tail -n20 /tmp/iostat_output |grep "\b$device\b" |tail -1|awk '{print $5}'
;;
rKBps)
/usr/bin/tail -n20 /tmp/iostat_output |grep "\b$device\b" |tail -1|awk '{print $6}'
;;
wKBps)
/usr/bin/tail -n20 /tmp/iostat_output |grep "\b$device\b" |tail -1|awk '{print $7}'
;;
avgrq-sz)
/usr/bin/tail -n20 /tmp/iostat_output |grep "\b$device\b" |tail -1|awk '{print $8}'
;;
avgqu-sz)
/usr/bin/tail -n20 /tmp/iostat_output |grep "\b$device\b" |tail -1|awk '{print $9}'
;;
await)
/usr/bin/tail -n20 /tmp/iostat_output |grep "\b$device\b" |tail -1|awk '{print $10}'
;;
r_await)
/usr/bin/tail -n20 /tmp/iostat_output |grep "\b$device\b" |tail -1|awk '{print $11}'
;;
w_await)
/usr/bin/tail -n20 /tmp/iostat_output |grep "\b$device\b" |tail -1|awk '{print $12}'
;;
svctm)
/usr/bin/tail -n20 /tmp/iostat_output |grep "\b$device\b" |tail -1|awk '{print $13}'
;;
util)
/usr/bin/tail -n20 /tmp/iostat_output |grep "\b$device\b" |tail -1|awk '{print $14}'
;;
esac
/etc/init.d/zabbix_agentd restart
参考：