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  #1  
Old 8th October 2011, 21:06
arastirici arastirici is offline
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Default how to monitor disk performance as percentage on ubuntu

how to monitor disk performance as percentage(%) on ubuntu 11.04 ?

I can see how much cpu or memory use as % with some commandline.
But I can't see how much the disk uses its resource as percentage.

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Old 9th October 2011, 12:23
falko falko is offline
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Check out this command:
Code:
df -h
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Old 9th October 2011, 12:53
arastirici arastirici is offline
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I don't want to see how much the disk is used as bytes.

I want to see how much the disk is busy as percentage.

How can I find out this ?

Thanks
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Old 9th October 2011, 19:34
nbhadauria nbhadauria is offline
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May be hdparm command can help .
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Old 10th October 2011, 09:43
falko falko is offline
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Code:
df -h
also shows you the usage in %.
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Old 10th October 2011, 09:52
arastirici arastirici is offline
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But df shows how much a disk uses as byte, I don't want it.

I wish how much it uses its performance as percentage
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Old 11th October 2011, 20:00
falko falko is offline
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Code:
mh1:~# df -h
Filesystem            Size  Used Avail Use% Mounted on
simfs                  58G   31G   27G  54% /
tmpfs                 998M     0  998M   0% /lib/init/rw
mh1:~#
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Old 11th October 2011, 22:08
arastirici arastirici is offline
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I think I was misunderstood.
I don't want how much the disk has freespace or its data capacity.
I don't mean disk storage capacity.
as you know a disk has some performance ( rpm, speed,cache etc..)
I wish to learn that how much does the disk use its performance as percent during the disk works.
is there a command for that ?

Thanks
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Old 12th October 2011, 11:25
falko falko is offline
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Do you mean data transfer rates, I/O rates, etc.?
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Old 12th October 2011, 11:35
arastirici arastirici is offline
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Yes nearly

I wonder, when will the disk be bottleneck as i/o rates, how much busy is the disk?
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