Dell R210-II - Unable to disable hyperthreading?

Dell Customer Communication
Hi Kiliam,

Can you please help us understand the issue you have faced with omconfig command on R730 server? Did you try to configure the Hyper-Threading(HT) feature using omconfig command?

I would like to update that, in recent Dell PowerEdge servers, the "Hyper-Threading(HT)" is called as "Logical Processor" which can be enabled or disabled. This Logical Processor is also a part of Processor Settings group in the BIOS.

Please configure the "Logical Processor" attribute using omconfig command to achieve the "Hyper-Threading" feature.

Let us know if you need more details.

Regards

Chandra


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Message: 1
Date: Mon, 12 Oct 2015 23:11:56 -0700
From: Kilian Cavalotti
Subject: Re: [Linux-PowerEdge] Dell R210-II - Unable to disable
hyperthreading?
To: matt
Cc: "[email protected]"
Message-ID:

Content-Type: text/plain; charset=UTF-8

Hi Matt,

I've seen something similar on a brand new R730 recently, although using syscfg from the DTK instead of omconfig.
Reflashing the iDRAC/LC firmware solved the issue for me.

Cheers,
--
Kilian



------------------------------

Message: 2
Date: Tue, 13 Oct 2015 11:21:14 +0200
From: Peter Kjellstr?m
Subject: Re: [Linux-PowerEdge] Dell R210-II - Unable to disable
hyperthreading?
To: matt
Cc: [email protected]
Message-ID:
Content-Type: text/plain; charset=US-ASCII

On Thu, 24 Sep 2015 13:45:10 -0500
matt wrote:

> Hello Linux Poweredge group:
>
> For the past month, I have been tasked with a special problem across
> a worldwide fleet of Dell R210-II servers. These servers are all
> running Centos 6.7 and until recently have been working well. We
> started noticing an issue with processor load but were able to
> successfully trace it back to the fact that some servers have
> hyperthreading enabled and some did not.

I'm curious to know how this load issue manifested itself. What were
the symptoms?

/Peter



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