Disk Queue Length - No stats data

Curious if anyone has run into this situation. For the Disk Queue Length custom or manually created monitor I am getting back response time but no statistical data. I have created memory, pagefile, etc monitors to verify the wmi functions and they worked. However it seems when multiple instances are available, ie 4 disks it isn't reporting back any stats.

I have tried the items below against multiple nodes. The G item was for a SQL server with a G drive as a test. The disk queue length on one of the test servers is constantly averages between 4 and 6, 16 spindles running a large SQL instance.

SELECT AvgDiskQueueLength FROM Win32_PerfFormattedData_PerfDisk_PhysicalDisk WHERE Name="_Total"

SELECT AvgDiskQueueLength FROM Win32_PerfFormattedData_PerfDisk_PhysicalDisk WHERE Name="3 G:"

I have even tried single ' instead of " for the where values.

NPM 9.0 SP2
APM 2.0
OS: Win2K3 R2 x64 SP2

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DirtySouth

I'm having the exact same problem. I created a template with monitors for AvgDiskQueueLength, AvgDiskReadQueueLength, AvgDiskWriteQueueLength & CurrentDiskQueueLength.

When I run the test on these monitors they all pass. I am receieving availability data, but absolutely no statistical data. When I login to the box, I'm able to view the same WMI statistics using Perfmon. Any ideas?

Congo

Same here. Lets compare?

Polling:

Win2k3

16x 147gb SAS drives in Raid 6

Using:

NPM 9.1 SP5 and APM 2.5

DirtySouth

Win2k3

2x 278 GB SAS in Raid 1

2x 278 GB SAS in Raid 10

Using: NPM 9.1 SP5 and APM 2.5

It appears that AvgDiskReadQueueLength, AvgDiskWriteQueueLength are the only two component monitors not returning any statistics. I have other component monitors, within the same template, that are monitoring Disk queues that ARE returning statistics.

I just recreated a monitor for these two templates and am testing now.

FormerMember

Can you open a Support ticket? This isn't a know issues, so you may have uncovered a new bug. We'll want to collect diagnostics, etc., so that we can reproduce and fix.