[CentOS] I/o Read/write BYTes ?

[Roland Roland]

Hello,


is there a way to detect the r/w i/o bytes on a hdd under centos?

  i know i can do it through task manager under windows though what 
about centos  through cli ?

any advice?
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Re: [CentOS] I/o Read/write BYTes ?

[Mathieu Baudier]

 using iostat from systat package?

sudo yum install sysstat
(not the two 's' in the middle)

For example:
iostat  -m 5 /dev/md{0,1} /dev/sd{a,b,c,d,e}

-m : output in megabytes
5: every 5s
/dev/md{0,1} /dev/sd{a,b,c,d,e} : the various drives to filter (no
such argument will show them all)
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