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High Disk Actitiy

Hi,

I've got a Windows Server 2003 SBS and its currently experiencing very high disk activity which is slowing down access for users.

Is there any way to discover which files are being accessed and who process, user or PC is causing the high level of disk activity?

Thanks
Dan
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DanJourno
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DanJourno
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1 Solution
 
ApothisCommented:
Performance monitor will help you verify it is the disk and not memory. Physical disk-% idle is the easiest one to read in my opinion. the lower the number, the harder it's working. From there, the Process sensor will help you a lot. Look at I/O data Bytes/sec, possibly some others, and then pick all instances *individually*, the one that's high will stick out clearly. Performance Monitor can be found under Administrative Tools. As for telling which client is causing it, I'm really not sure. That's where you should then see your network interface - Bytes Total/sec go up.

In my previous experience, this was caused by antivirus running on the server scanning inside of zip files.
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DanJournoAuthor Commented:
I was already using Perfmon which is why i knew it was a disk activity issue.
And I guessed correctly that it is the main data drive. However, there is no antivirus running on the server. Only on the client machines.
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ApothisCommented:
Okay, well give the Process sensor a shot, it should tell you which program/process is causing the issue.
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DanJournoAuthor Commented:
Sorry, where's the process sensor?
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ApothisCommented:
Is it consuming network bandwidth as well? You may be able to tell who is causing it if you have a program that monitors SNMP.
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ApothisCommented:
No problem, the process sensor is in the same drop down list as the 'physical disk' sensor.
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EirmanCommented:
Could fragmentation be a problem ?
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DanJournoAuthor Commented:
Not that im aware of. It seems to be just today.
Levels have been normal up till now.
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ApothisCommented:
How does network activity on the box look?
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DanJournoAuthor Commented:
Normal. Around 10 to 20kb at the moment. Nothing obvious.
Going to try a reboot tonight. Hopefully its just a process thats gotten stuck
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ApothisCommented:
Has the process sensor in performance monitor shown anything?
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DanJournoAuthor Commented:
Reboot resolved the issue.
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ApothisCommented:
Nice! Glad it was an easy fix.
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