iostat命令用来监视系统输入/输出设备负载
安装时可以执行如下命令
yuminstallsysstat
即可
[root@zhaopinzhaopin]#iostat
Linux2.6.18-164.el5
avg-cpu:%user%nice%system%iowait%steal%idle
0.450.000.260.090.2498.96
Device:tpsBlk_read/sBlk_wrtn/sBlk_readBlk_wrtn
xvda6.107.5080.911501997741620302742
xvda10.000.000.002732182
xvda26.107.5080.911501968901620302560
xvdd0.000.000.005240
dm-010.025.3179.031063354981582597448
dm-10.512.191.884386115237705112