[CentOS] cli Checking disk i/o

Robert Moskowitz

rgm at htt-consult.com
Mon Nov 11 00:37:07 UTC 2019

OK.  That is interesting.  I am assuming tps is transfers per sec?

I would have to get a stop watch, but it seems to go a bit of time, and 
then a write.

Is there something that would accumulate this and give me a summary over 
some period of time?  Of course it better NOT be doing its own IOs...

On 11/10/19 6:03 PM, shimi wrote:
> iostat 1
> On Mon, 11 Nov 2019, 00:11 Robert Moskowitz, <rgm at htt-consult.com 
> <mailto:rgm at htt-consult.com>> wrote:
>     I just built a CentOS7 system on a Zotac NANO PC.
>     I used a 320GB 2.5" HD I had sitting around and installed with
>     Standard
>     Partitions on XFS.
>     The drive is spinning, nonstop.
>     How can I monitor if there is actually disk i/o to warrant this
>     constant
>     spinning.
>     So noatime for all partitions work with XFS?  I did some browsing and
>     the claim is XFS uses realtime which is better? than noatime?
>     Perhaps it is just occasional writes to messages (at least 1 a
>     minute)
>     that determines to keep on spinning.
>     But it is annoying.
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