1.下载check_iostat插件并上传到客户端的/usr/local/nagios/libexec目录中,下载地址：

#wget http://exchange.nagios.org/components/com_mtree/p_w_upload.php?link_id=3379&cf_id=242.授予权限

# chmod +x /usr/local/nagios/libexec/check_iostat# chown nagios. /usr/local/nagios/libexec/check_iostat3.测试是否可用

# ./check_iostat -d sda -w 100 -c 200OK - I/O stats tps=0.31 KB_read/s=5.94 KB_written/s=6.66 | 'tps'=0.31; 'KB_read/s'=5.94; 'KB_written/s'=6.66;4.测试完成后添加到nrpe.cfg中

# vi /usr/local/nagios/etc/nrpe.cfgcommand[check_iostat]=/usr/local/nagios/libexec/check_iostat -d sda -w 100 -c 2005.重启xinetd服务

# /etc/init.d/xinetd restartStopping xinetd: [ OK ]Starting xinetd: [ OK ]6.服务端添加命令

# vi /usr/local/nagios/etc/objects/commands.cfgdefine command{ command_name check_iostat command_line $USER1$/check_iostat -d $ARG1$ -w $ARG2$ -c $ARG3$}7.服务端添加服务

# vi /usr/local/nagios/etc/services/mail_156.cfgdefine sevice{ use generic-service host_name mail_156 service_description check-iostat check_command check_nrpe!check_iostat!sda!100!200}8.等会出现结果

9.出错问题解决

[root@mail ~]# /usr/local/nagios/libexec/check_iostat -d sda1 -w 100 -c 200/usr/local/nagios/libexec/check_iostat: line 54: sda1: command not found/usr/local/nagios/libexec/check_iostat: line 55: sda1: command not found/usr/local/nagios/libexec/check_iostat: line 56: sda1: command not found/usr/local/nagios/libexec/check_iostat: line 60: bc: command not found/usr/local/nagios/libexec/check_iostat: line 60: bc: command not found/usr/local/nagios/libexec/check_iostat: line 61: bc: command not found/usr/local/nagios/libexec/check_iostat: line 64: bc: command not found/usr/local/nagios/libexec/check_iostat: line 64: bc: command not found/usr/local/nagios/libexec/check_iostat: line 65: bc: command not foundOK - I/O stats tps= KB_read/s= KB_written/s= | 'tps'=; 'KB_read/s'=; 'KB_written/s'=;提出54行到56行命令未找到，查看脚本的54行需要什么命令。我查找到是iostat未安装# yum install -y sysstat提示60行到66行bc命令未找到，需要安装bc命令# yum install -y bc