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highest active time

Posted on 2013-01-19
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Last Modified: 2013-03-07
i have a raid 10 array and the highest active time is usually at 100% is that normal? disc queue length is between 1 and 2 but it has 6 drives.  also, its important to mention that the disk i0 rate is fairly low since im not doing much but high activity appears to be high.
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Question by:Kylo Ren
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11 Comments
 
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Expert Comment

by:Gerald Connolly
ID: 38798363
What server? What OS? What Array? Screenshot?
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Author Comment

by:Kylo Ren
ID: 38798918
hp server 2012

raid 10 array with 6 hard drives
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Expert Comment

by:Gerald Connolly
ID: 38799006
So where are you getting the 100% from?
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Author Comment

by:Kylo Ren
ID: 38799043
resource manager, disk, disk activity, highest active time

its a raid 10 volume with 6 hard drives
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Expert Comment

by:Gerald Connolly
ID: 38799099
Do you have a screen shot of that?
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Author Comment

by:Kylo Ren
ID: 38866483
screenshot
yes heres the screen shot. highest disk active time on this one says 0 right now. normally its 100
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Expert Comment

by:Gerald Connolly
ID: 38867152
Obviously a screenshot showing the problem would have been more useful, especially with the disk details section expanded!

So its 0 in the screenshot, what happens on your system to make it go to 100
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Author Comment

by:Kylo Ren
ID: 38885086
backups
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Expert Comment

by:Gerald Connolly
ID: 38885639
So you are surprised?

Remember that we have two measures of disk activity MB/s and IOPS and these two are normally mutually exclusive - High IOPS means low MB/s and vice-versa

This page has some more details http://superuser.com/questions/45722/what-does-highest-active-time-for-disk-activity-in-windows-resource-monitor-me
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Accepted Solution

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Kylo Ren earned 0 total points
ID: 38945338
yes i was surprised. i got it fixed, backup software software related. backups run as usual and i now get 7% utilization vs 100%
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Author Closing Comment

by:Kylo Ren
ID: 38961160
100% utilization is not normal even if backups are running.
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