Get-Stat not reporting stats on only 1 of my ESXi 5.5 servers

[heat23]

I have 14 ESXI 5.5 servers running 2718055 and on only 1 of them, running Get-Stat reports NO output. Can't figure out why this is happening as all servers *should* have the same configuration.

Here is the .ps1 script I am running:

$vis = Connect-VIServer -Server <hostname> -username root -password <password>

Get-Stat -Server $vis -Start (Get-Date).AddHours(-4) -Finish (Get-Date) -stat cpu.usage.average -MaxSamples 1

Output is completely blank.

If I change my hostname to any of the other 13 servers, I get the complete stat ouput...

..snippet..

cpu.usage.average	8/4/2015 4:11:00 PM	8.93 %	6
cpu.usage.average	8/4/2015 4:11:00 PM	4.46 %	5
cpu.usage.average	8/4/2015 4:11:00 PM	5.92 %	8
cpu.usage.average	8/4/2015 4:11:00 PM	5.09 %	7
cpu.usage.average	8/4/2015 4:11:00 PM	9.98 %	0
cpu.usage.average	8/4/2015 4:11:00 PM	3.53 %	30
cpu.usage.average	8/4/2015 4:11:00 PM	2.17 %	34
cpu.usage.average	8/4/2015 4:11:00 PM	5.96 %	33
cpu.usage.average	8/4/2015 4:11:00 PM	13.34 %	32
cpu.usage.average	8/4/2015 4:11:00 PM	3.46 %	31

I have tried rebooting the problematic ESXi server to no avail.

Please help!

[LucD]

I assume those ESXi are running in a cluster ?

If yes, can you try to reconfigure the problematic ESXi node for HA.

You could use

$esx = Get-VMHost -Name ProblematicEsx

$esx.ExtensionData.ReconfigureHostForDAS()

[heat23]

Thanks for the response. Actually these are standalone ESXi servers since we are running just the Essentials license

[LucD]

I see. Is the Performance data also missing in the vSphere or Web client for that specific ESXi ?

[heat23]

It works fine via vSphere Client

[LucD]

I assume you already tried a Disconnect-VIServer and Connect-VIserver ?

Did you already try stopping the PowerShell session, and restarting it ?

[heat23]

Yes, I have tried it from 2 different Windows 2008 servers with powershell

[heat23]

Is there any service or configuration setting that someone else may have changed on the ESXi host itself (via vSphere or SSH) that could have caused this to happen?

[LucD]

If you see the performance data in the vSphere client, the data is collected.

It just seems that the Get-Stat cmdlet doesn't retrieve the statistical data from that specific ESXi server.

No real explanation for this behaviour I'm afraid, and I haven't seen something like that before.

You could try to connect my Stats Toolbox to the ESXi server, and check if you get the counters back.

Otherwise I would suggest you open a SR for this.