[rhelv6-list] App install in RHEL6 KVM physical host

[hai wu]

Yes, but this way the guests app needs to run on top of the same OS
release, which is not good..

On 2/23/12, thomas at redhat.com <thomas at redhat.com> wrote:
> So, you want to install a high-impact application on the OS running on
> bare metal, and then run some lighter weight apps within virtual
> machines on the same hardware? That is easily done, but can be a bit
> cumbersome.
>
> It might be less complex to just run all your apps on one physical
> machine and use control groups to limit the lower impact apps than to
> bring up multiple OS instances.
>
> Thomas
>
> On 02/23/2012 08:03 AM, hai wu wrote:
>> My question was probably not clear, I was asking for app install on
>> top of kvm's 'DOM0' physical (not a right word here, similar to xen
>> dom0), such as cpu intensive puppet app, then in kvm guest, we could
>> put lightweight things like apache, ldap servers, etc..
>>
>>
>> On 2/23/12, Thomas Cameron<thomas.cameron at camerontech.com>  wrote:
>>> On 02/23/2012 03:30 AM, hai wu wrote:
>>>> This is not about RHEV, just plain KVM.
>>>>
>>>> Are there any concerns when installing heavy app in RHEL6 KVM physical
>>>> host?
>>>
>>> There are considerations, of course. You can get as granular or as broad
>>> with tuning as you like. You can do things like use numactl and cpu
>>> pinning and control groups and sriov to really drive as much performance
>>> to the VM as possible. You want to do things like use virtio instead IDE
>>> for storage and network, things like that.
>>>
>>> Without more info about what you are going to do, it's really hard to
>>> give you a real recommendation. What is the workload you're thinking of
>>> virtualizing?
>>>
>>> I've got one customer who is running numerous Windows 2008R2 machines
>>> running workloads from file and print to Exchange to Sharepoint as KVM
>>> guests, and it's working just fine.
>>>
>>> TC
>>>
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>>>
>>
>
>
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