<![CDATA[System.IO.DiskQueue and System.IO.DiskTime]]>As you can tell, I am slowly making my way through all the agent paramaters.  Most of our servers have seperate OS and DATA disk sub-systems.

I assume System.IO.DiskQueue and System.IO.DiskTime are averaged totals for all disk subsystems on the server.  Is that correct?

If the OS is 😄 and the DATA volume is 😧  Would the following counters more accurately reflect the current state of the disk queue length and the disk time for each volume?

Counter = System.IO.DiskQueue.C:"\LogicalDisk(C:)\Current Disk Queue Length":60:A:INT:"Average Current Disk Queue Length on C:"
Coutner = System.IO.DiskTime.C:"\LogicalDisk(C:)\% Disk Time":60:A:INT:"Average % Disk Time on C:"
Counter = System.IO.DiskQueue.D:"\LogicalDisk(D:)\Current Disk Queue Length":60:A:INT:"Average Current Disk Queue Length on D:"
Coutner = System.IO.DiskTime.D:"\LogicalDisk(D:)\% Disk Time":60:A:INT:"Average % Disk Time on D:"

Thank You,
Kevin

]]>https://forum.netxms.org/topic/230/system.io.diskqueue-and-system.io.disktimeRSS for NodeFri, 13 Nov 2026 12:29:12 GMTMon, 18 Feb 2008 17:47:31 GMT60<![CDATA[Reply to System.IO.DiskQueue and System.IO.DiskTime on Wed, 27 Feb 2008 14:12:23 GMT]]>Thank you,

I will try to get a better understanding of that counter.  On one of our servers, we are seeing regular valures around 200 - 250 for that paramater and spikes over 600.

Thanks again,
Kevin

]]>https://forum.netxms.org/post/1154https://forum.netxms.org/post/1154Wed, 27 Feb 2008 14:12:23 GMT<![CDATA[Reply to System.IO.DiskQueue and System.IO.DiskTime on Wed, 27 Feb 2008 08:00:57 GMT]]>Hello!

It's just a built-in alias for \PhysicalDisk(_Total)\% Disk Time performance counter. It is the percentage of elapsed time that all disk drives were busy servicing read or write requests. It can be used to measure physical disk load, but it is not related to % of CPU time spent on I/O.

Best regards,
Victor

]]>https://forum.netxms.org/post/1150https://forum.netxms.org/post/1150Wed, 27 Feb 2008 08:00:57 GMT<![CDATA[Reply to System.IO.DiskQueue and System.IO.DiskTime on Tue, 26 Feb 2008 20:42:19 GMT]]>Can you explain the System.IO.DiskTime paramater?

I assumed this was a % cpu for all disk activity on the server.  It seems this is a total time counter in ms maybe?  Is this assumption correct?  How do you use this information?

Is there any way to relate this to % cpu?

Thank you,
Kevin

]]>https://forum.netxms.org/post/1148https://forum.netxms.org/post/1148Tue, 26 Feb 2008 20:42:19 GMT<![CDATA[Reply to System.IO.DiskQueue and System.IO.DiskTime on Thu, 21 Feb 2008 19:51:05 GMT]]>Yes, then you will get more detailed picture. From my experience, I often configure only common System.IO.DiskQueue parameter on all servers, and then add per disk queue/time for those servers where I see need for more detailed information.

Best regards,
Victor

]]>https://forum.netxms.org/post/1131https://forum.netxms.org/post/1131Thu, 21 Feb 2008 19:51:05 GMT