Hyper V Virtual Processors

Hi All,

We have recently installed an HP machine with a Xeon X5650 @ 2.67GHz with 12 cores on a client site. We have installed the Hyper-V role and configured a 2003 x64 Terminal Server (TS2). Hyper-V only allows for 4 Virtual Processors, so we have applied this many

Another Terminal Server we have on site (which we built ourselves - TS1) has an i7 860 @ 2.8GHz with 8 cores

TS1 is currently housing around 40 users and the CPU sits around the 10% mark

My question is, what kind of load can I expect TS2 to handle? We have only moved 6 users so far and the CPU is already around the 10 - 20% mark. All users have the same software and processes

TS2 has more RAM but is using SAS 10k's in RAID 10 as oppose to SSD's in RAID 1 for TS1

We have tried to find how the virtual processors relate to the physical cores but it gets quite confusing...

Thanks
UplandSystemsAsked:
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
yes, I understand that. Migrate to physical, you will not get the same performance under a hypervisor.
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SandyCommented:
I suggest you to use the resource allocation for CPU under Hyper V, that will help you with required performance.
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Lee W, MVPTechnology and Business Process AdvisorCommented:
How much CPU is required depends on your usage.  What version of Windows Server? If Enterprise or Data Center, you can just add another Terminal server and run additional users on the second virtual box.
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
your physical bare metal will allow for more concurrent users with less CPU because the hypervisor sucks up the CPU.
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UplandSystemsAuthor Commented:
Sandeep:
Resource allocation is for limiting resources is it not? It is currently allowing up to 100 CPU

Lee:
Server 2008 R2 Standard, so another server would require another licence

Hanccocka:
I realise the bare metal would be quicker but we were hoping to leave room for expansion should the need for another server crop up. We are currently looking into alternative HyperVisors, do you have any experience with ESXi?

Thanks
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Yes, just a little experience, over the past 14 years....

Its the same.
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UplandSystemsAuthor Commented:
What a coincidence, I've just racked up about 14 minutes worth... :)

So would using ESXi not give us any benefit over Hyper-V?
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Both VMware and Microsoft have good hypervisors that perform well.

But not ALL VMs are suitable.

use more virtual terminal servers
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UplandSystemsAuthor Commented:
Thanks hanccocka, however as I said another virtual terminal server is another licence, and therefore not an option
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UplandSystemsAuthor Commented:
OK we have decided to go to bare metal, is an OS reinstall necessary, or will a backup and universal restore be good enough?

Thanks
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Ilya RubinshteynCommented:
Before you go to Bare Metal, are you using the hyper-V manager or SCVMM to manage/create your machines? SCVMM has much more robust processor options. I am currently running a Server 2008 R2 terminal server with a dual quad-core virtual CPUs and 29 users on it using Office Suite, including ODBC connections in Excel, and CPU is at around 15%....
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UplandSystemsAuthor Commented:
Hi irnmamont, we are using Hyper-V, I have no experience with SVCMM but will look into it

Thanks
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Ilya RubinshteynCommented:
Also, I am assuming that the server running Hyper-V has no other roles installed on it, correct?
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UplandSystemsAuthor Commented:
Correct
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Ilya RubinshteynCommented:
Install SCVMM on a management machine, you can download a 180 day eval, i believe, import the host to SCVMM, and see what the VM settings are as well as resource utilizaton.
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Ilya RubinshteynCommented:
Also, on the host, make sure processor virtualization and DEP are configured correctly, both in the BIOS as well as system management software.
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UplandSystemsAuthor Commented:
I am struggling to find prices for what is needed to implement SCVMM, how much will what we need, cost?
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Ilya RubinshteynCommented:
about $650 for the workgroup edition. I would test it prior to implementing though. The trial can be downloaded from http://www.microsoft.com/en-us/server-cloud/system-center/virtual-machine-manager-trial.aspx.
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