Virtulisation.

dq

Member
Aug 20, 2004
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Hi Guys / Girls,


I dont know if im in the right group for posting this but I know im in the right place
Basically we are a company slowly moving to a mass virtulisation project and we have got to the point of choosing servers and configurations. We are definitely going with the HP Proliant's (DL 380) to be exact however HP offer this server in 3 flavours.

Lets focus on the DL380 and 385. The servers have identical specifications however one is an AMD base and the other an INTEL base. Now i've done a little research but I cant find any of those articles I use to be able to find years ago on SQL on AMD vs INTEL or JDEdwards on INTEL vs AMD.

Basically, given the unlimited budget but sticking with HP Proliant DL380, which would be a better solution... AMD or INTEL or when can I read and see benchmarks.

We will be running 3 * 300GB SAS SFF disks in RAID 5 giving us 600GB.
We're going to run about 4-5 virtual machines but of the 4, only two will be assigned the most resources (Primevera 6 P6 webserver edition with an integration into JDE).

Which do I choose? INTEL or AMD. Both processors will be Quad Cored based and the server will have two inside (so BUS speeds to consider). thanks guys!!
 

mvbighead

Diamond Member
Apr 20, 2009
3,793
1
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We use both where I am at, and AMD isn't a bad way to go. However, Intel quite simply has a stronger name in the field. The reason I selected an AMD is that 1) It was Dell's "Suggested Virtualization Platform" and 2) They had 6-Core CPUs available at the time of purchase.

One thing I would suggest, however, is that you should focus on maximizing the number of cores you have available. The more you have, the better off you'll be. If two QUADs is what you can fit in your budget, that'll be good.

In addition, if you're not using a SAN, I would strongly suggest maximizing the number of disks you bring to the table. The higher the number of spindles you bring to the server should allow disk time to be optimal. And when you start throwing a bunch of VMs onto one physical host, you'll want to minimize your weaknesses. You'd be better off getting the disks straight away, and not messing with reconfiguring them down the road should disk speed be suboptimal.

Last but not least, it it would certainly be worth your time to investigate your networking requirements (especially if iSCSI is an option). Having multiple NICS can allow you to withstand the loss of a switch port, or a switch.

I realize I didn't exactly answer your question, but hope the other information was helpful.
 

JFAMD

Senior member
May 16, 2009
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How many VMs are you going to host on the server? How many vCPUs in each VM?

With 8 physical cores, you will get the best scalability up to 4 dual core VMs. You can do more, but you add latency.

When your virtual cores outstrip the physical cores, some of the time spent trying to manage all of the VMs becomes moving data in and out of cache and that adds latency. It's not the end of the world, but it is latency.

Imagine 10 VMs (20 virtual cores) on an 8 core machine. At any moment 8 virtual cores have their data in cache and are executing while the rest are waiting in line. When a new core needs to take over, the cache is emptied of the old data and filled with the new data so that the core can execute. This wastes cycles.

If you had a 385 with two 12-core processors, you have 24 physical cores and 20 virtual cores. Every virtual core has its own cache, and you don't have as much latency because there is no "cache thrashing", ie. you are not emptying and reloading caches.

Obviously the lower the ratio of virtual to real cores, the lower the latency.

In doing the research yesterday on base configs for HP, configuring a 2P server with 32GB of memory, 1 drive and base warranty, I found that Intel was ~12% more expensive. DL380 was 12 physical cores, a DL385 was 24 physical cores. Power should be close to the same for both, and they are both coming from the same vendor with the same specs (HP). The DL385 was a G7 where the 380 is still only G6, so there are some manageability features lost on the DL380.

Obviously I am biased, but keep the core count in mind, the lower you can get the ratio between the physical and virtual cores, the better your platform will scale.
 

classy

Lifer
Oct 12, 1999
15,219
1
81
I can only speak from experience. I have two years in VMware with ESX/ESXi and based on your post for that few number of VMs on that host as long as you're dealing with ample ram, 24 gigs I would suggest for possible future growth, I doubt you'll see a huge a difference. It doesn't look like your using back end storage or HA, so with that small of a number I seriously doubt that you'll see a significant tangible difference. Not in VMWare anyway, I don't know about hyper-v though. I think Anand has some tests some where, AMD is very compettive with Intel as far as a virtualization platform. I don't know the extent of the webserver usage you are speaking of, but that is a very small number of VMs for a single host. We deal with Dell and all Intel. Solid as a rock, but I can't see you going wrong using AMD either. If budget is not a concern, you can't beat Nehalem right now.
 
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dq

Member
Aug 20, 2004
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Firstly, thanks to everyone who responded and gave input.

Building up from the post, yes the server won’t be using HBA or SAN's. Unfortunately we are tied to local storage (10k SFF SAS.. can’t get 15k as they are not made for 300Gb)...
I’m thinking RAID 5 but I can easily add the fourth disk to take it to RAID 10 if you think that’s a better option? The initial base I chose was with 14GB of ram. 6 cores from AMD verses 4 from INTEL...? Which has a better architecture...? The hypervisor will be Hyper-V. I really want a nice setup from day one.

The server will be hosting:
Primavera 7 p6 project management (web based) on one VM (4 GB ram, dual virtual core),
Primavera integration pack for JDE on a VM (4GB ram, dual virtual core),
SQL 2008 with the highest resources allocated on a VM (4GB ram, quad virtual core),
Finally a simple tertiary ws2008 r2 domain controller (2GB ram, dual virtual core),

I can upgrade this easily to more 16, 18. Based on your recommendations for the above configurations. Budget isn’t really an option but I can’t change to a SAN or anything like that.I can add disks, I can add memory and I can change base systems from INTEL to AMD and versa. My primary concern is one server is a G7 (AMD) and one is a G6 (INTEL).
I think this impact is only really cooling and air flow architecture..?
Are the Nehalem processors better then the AMD ones and if so, which are their product numbers when it comes to Xeon? Are they available on the 380 or 385..?

Have any of your opinions changed? Many thanks in advance guys.
 

Accord99

Platinum Member
Jul 2, 2001
2,259
172
106
Building up from the post, yes the server won’t be using HBA or SAN's. Unfortunately we are tied to local storage (10k SFF SAS.. can’t get 15k as they are not made for 300Gb)...
I’m thinking RAID 5 but I can easily add the fourth disk to take it to RAID 10 if you think that’s a better option? The initial base I chose was with 14GB of ram. 6 cores from AMD verses 4 from INTEL...? Which has a better architecture...? The hypervisor will be Hyper-V. I really want a nice setup from day one.
Virtualization benchmarks are not that common but this one with Hyper-V suggests the 6 core Intel Xeons are the best:

http://it.anandtech.com/show/2978/amd-s-12-core-magny-cours-opteron-6174-vs-intel-s-6-core-xeon/12

My primary concern is one server is a G7 (AMD) and one is a G6 (INTEL).
I think this impact is only really cooling and air flow architecture..?
I don' they're related; each server model get's a generation update usually when a significant CPU update is released.
 

mv2devnull

Golden Member
Apr 13, 2010
1,519
154
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I’m thinking RAID 5 but I can easily add the fourth disk to take it to RAID 10 if you think that’s a better option?
Both 3-disk RAID5 and 4-disk RAID10 yield the same net capacity.

You can lose one disk from RAID5, but the second error is fatal.
You can lose one disk from RAID10, and the second error might not be fatal.

RAID5 controller has to handle the checksums, RAID10 does not.

I would prefer RAID10, but I'm not familiar with the performance benchmarks for your usage pattern.
 

JFAMD

Senior member
May 16, 2009
565
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Virtualization benchmarks are not that common but this one with Hyper-V suggests the 6 core Intel Xeons are the best:

http://it.anandtech.com/show/2978/amd-s-12-core-magny-cours-opteron-6174-vs-intel-s-6-core-xeon/12


I don' they're related; each server model get's a generation update usually when a significant CPU update is released.

Well, it shows ~5-6% advantage, but if you go configure a 380 vs. a 385, you find that AMD is less expensive by ~12%, so the overall price/performance is better with AMD.

Said another way, if you believe that both platforms are of similar quality from HP, can you justify spending 12% more in price to get 5% more performance?

Also consider this statement for the future:

We have noticed that the CPU load of Magny-cours is at 70-85%, while the Six-core "Istanbul" is running at 80-95%". As we have noted before, 24 cores is at the limit of our current benchmark until we launch vApus Mark 2. We have reason to believe that the opteron 6174 has quite a bit of headroom left. The results above are not wrong, but do not show the full potential of the 6174. We are checking the CPU load numbers of the six-core Xeon X5670 as we speak. Expect an update in the coming days.

I have not seen any additional followup, but this tells me that the performance delta here may be understated, making that price/performance equation potentially even more favorable for AMD.
 

classy

Lifer
Oct 12, 1999
15,219
1
81
Firstly, thanks to everyone who responded and gave input.

Building up from the post, yes the server won’t be using HBA or SAN's. Unfortunately we are tied to local storage (10k SFF SAS.. can’t get 15k as they are not made for 300Gb)...
I’m thinking RAID 5 but I can easily add the fourth disk to take it to RAID 10 if you think that’s a better option? The initial base I chose was with 14GB of ram. 6 cores from AMD verses 4 from INTEL...? Which has a better architecture...? The hypervisor will be Hyper-V. I really want a nice setup from day one.

The server will be hosting:
Primavera 7 p6 project management (web based) on one VM (4 GB ram, dual virtual core),
Primavera integration pack for JDE on a VM (4GB ram, dual virtual core),
SQL 2008 with the highest resources allocated on a VM (4GB ram, quad virtual core),
Finally a simple tertiary ws2008 r2 domain controller (2GB ram, dual virtual core),

I can upgrade this easily to more 16, 18. Based on your recommendations for the above configurations. Budget isn’t really an option but I can’t change to a SAN or anything like that.I can add disks, I can add memory and I can change base systems from INTEL to AMD and versa. My primary concern is one server is a G7 (AMD) and one is a G6 (INTEL).
I think this impact is only really cooling and air flow architecture..?
Are the Nehalem processors better then the AMD ones and if so, which are their product numbers when it comes to Xeon? Are they available on the 380 or 385..?

Have any of your opinions changed? Many thanks in advance guys.

Is this in a VMWare enviroment? VMWare still recommends using one virtual cpu per server I believe. Obviously you can use more virtual cpus, but I would double check what requirements or virtual resources folks have been succesful running those apps virtualized. If this is a production machine depending on how many people will be accessing the enviroment you could probably drop the memory assigned to each VM and tweak your resource pools instead. And if you need better redundancy, raid 6 may be an option which is little more resilent than 5 for not much more money.
 

classy

Lifer
Oct 12, 1999
15,219
1
81
Did you mean one virtual CPU per core?

If you're talking to me, then the answer is no. VMWare in 3 and 3.5 recommended configuring VMs with one virtual cpu. Your thinking on mapping or alloting virtual cpus in relation to actual physical cpu cores is not wrong, but virtual resources are not alloted that way. Typically depending on how you have the VM configured and what resource pool it is assigned to, generally will determine how that particular VM will utilize the available resources. Again there is nothing wrong with your suggestion, but it doesn't really work that way.

Same with ram, generally your VM will consume about 25% of the physical in relation to how much is configured. Example being you configure a VM with 1 gig, it will consume about 256 megs of physical. ESXi the free version uses the same vmkernal so they operate and function in the same way. I am no expert on VMWare, but I have used it quite a bit, its really interesting stuff. I haven't worked with Hyper-V, but most of the feedback has been positive. But virtual resources are utilized only when needed, which is what makes it pretty slick.
 

mv2devnull

Golden Member
Apr 13, 2010
1,519
154
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If you're talking to me, then the answer is no. VMWare in 3 and 3.5 recommended configuring VMs with one virtual cpu.
Does that not depend on the applications running in the guest? A properly threaded app would benefit from additional resources. Or is the recommendation related on how guest scheduler acts, i.e. less overhead within guest with only one virtual core, perhaps?

(I've added 'elevator=noop' parameter for Linux kernel on guests, but IIRC it was not due to core count.)
 

dq

Member
Aug 20, 2004
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0
Once again thanks for your support folks – just a few more questions…

OK, I’ve decided to put off buying the server until the G7 is widely available. Since the budget isn’t really much of an issue (except for SANS or similar). The 6 core Xeon look to be the way forward. How do I know if these are Nehalem? What are the product code numbers to look out for. P.s. Since I am going to wait this month or so, is there anything from AMD's roadmap that is a Xeon killer?

The hypervisor will be Windows Server 2008 R2 (Hyper-V 2.0) which I believe is getting good reviews from what I’ve heard and read so far. Should one consider investing in VMware or is Hyper-V nearly or as good? In addition, I will be using the standard Hyper-V tools unless Microsoft Virtual Machine Manager can bring any additional performance to the table?

I’m going to go ahead with RAID 10 so I’ll get the four 300GB disks 10k since you can’t get 15k apparently in that size…? Can one tell if there will be a bottleneck? Does anyone know of any advisory documents or pre-estimating tools available for storage subsystems?

Lastly, whilst reading all the posts it was mentioned that it is good practice to assign one core per VM and not more… Is this correct or did I just interpret it wrong? The reason I ask is two 6 core processors would mean 12 VM’s easily but surely that is too much load for one server?

Thanks in advance guys n girls.
 

mv2devnull

Golden Member
Apr 13, 2010
1,519
154
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Lastly, whilst reading all the posts it was mentioned that it is good practice to assign one core per VM and not more… Is this correct or did I just interpret it wrong? The reason I ask is two 6 core processors would mean 12 VM’s easily but surely that is too much load for one server?
The "load" does depend on many things. For the host the VM guest is just one process. Even if an application running within guest consumes 100% of one virtual core, it does not use more than one core from the host. But we do know that most "servers" do not actually use 100% of CPU. Therefore, as guests they don't fill up the host. That is the entire point of virtualization; to collect multiple sub-100 users to reach near 100% usage of physical resource.

Each guest does need some memory. Again, that is flexible, or can be with proper VM platform.

And then there is IO. To disks and to network. "Servers" usually do imply traffic, so the NIC's do require consideration just as much as the CPU, RAM and storage.
 

zsdersw

Lifer
Oct 29, 2003
10,505
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The Xeon X5650, 5660, 5670, and 5680 are the 6-core Westmere Xeons. There's also the Xeon L5640, too.
 

classy

Lifer
Oct 12, 1999
15,219
1
81
You might wanna talk to someone who has used Hyper-V in production. I have not. If this is a important infrastructure server you may not want to virtualize it if you don't have solid experience with either hypervisor. Or at least hold off a bit till you get some usage under your belt.
 

JFAMD

Senior member
May 16, 2009
565
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I have talked to a lot of people who use both. VMware clearly has a better product, but that product is far more expensive. The problem with VMware is that for many companies the cost is making it cost prohibitive to use everywhere. So they use one hypervisor (VMware) for their "critical" applications where they need a lot of manageability and then they rely on HyperV for areas like file/print consolidation or network services where they don't really need a lot of manageability.

It feels a LOT like Netware in the mid/late 90's. They had a better product, but people started using Windows NT server for some of the simple things in the data center vs. paying the higher cost for Netware.

I'd hate to see it work out that way for VMware, but if they can't get their licensing in line, we know how that story gets played out.
 

cbn

Lifer
Mar 27, 2009
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I think this impact is only really cooling and air flow architecture..?

Can you elaborate on this?

Are you talking about air conditioning and fan choices?

Thanks.
 

classy

Lifer
Oct 12, 1999
15,219
1
81
I have talked to a lot of people who use both. VMware clearly has a better product, but that product is far more expensive. The problem with VMware is that for many companies the cost is making it cost prohibitive to use everywhere. So they use one hypervisor (VMware) for their "critical" applications where they need a lot of manageability and then they rely on HyperV for areas like file/print consolidation or network services where they don't really need a lot of manageability.

It feels a LOT like Netware in the mid/late 90's. They had a better product, but people started using Windows NT server for some of the simple things in the data center vs. paying the higher cost for Netware.

I'd hate to see it work out that way for VMware, but if they can't get their licensing in line, we know how that story gets played out.

There is 0 comparison to Novell. Netware didn't fall out the lead because of price, they didn't develop a product for small to medium size businesses. I guess you can somewhat say it was price related, but it was more than that. At the time only large businesses used networks. But Microsoft developed NT for small businesses and the world of networks changed. Even now people will swear by edirectory and zenworks. And as far as price is concerned esxi is top notch and as cheap as it can possibly get, free. I believe hyper-v has a standalone free hypervisor as well. But I can manage an esxi host from a 2000 or XP desktop. You can't do that with hyper-v. And vmware is locked in with the leaders in networking infrastructure like cisco, dell, hp, and hell even riverbed. Vmware is going no where, ever.
 

theevilsharpie

Platinum Member
Nov 2, 2009
2,322
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Vmware is going no where, ever.

A few years ago, my local college district invested in a VMware-powered VDI solution for their distance education classes. Today, I am a consultant on the project to replace VMware View with Microsoft Remote Desktop Services, and it's being done for exactly the reasons JFAMD cites; VMware is simply too expensive.

VMware is no doubt a superior product, but Hyper-V is "good enough," and costs tens of thousands of dollars less, even when accounting for the licensing fees of SCVMM. And unfortunately for VMware, being "good enough" was all it took for Microsoft to defeat Lotus, UNIX, Novell, Borland, etc.
 

classy

Lifer
Oct 12, 1999
15,219
1
81
A few years ago, my local college district invested in a VMware-powered VDI solution for their distance education classes. Today, I am a consultant on the project to replace VMware View with Microsoft Remote Desktop Services, and it's being done for exactly the reasons JFAMD cites; VMware is simply too expensive.

VMware is no doubt a superior product, but Hyper-V is "good enough," and costs tens of thousands of dollars less, even when accounting for the licensing fees of SCVMM. And unfortunately for VMware, being "good enough" was all it took for Microsoft to defeat Lotus, UNIX, Novell, Borland, etc.

There is no comparison, its a bullshit statement. And the VDI project you are working on I would assume has no high quality video or streaming, because RDP sucks for VDI, especially over a wan. ICA and the new Teradici client are 50 times better. Hyper-V has got its costs to. I can run VMware completely in free linux as well now if I want.
 

theevilsharpie

Platinum Member
Nov 2, 2009
2,322
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There is no comparison, its a bullshit statement.

O rly?

And the VDI project you are working on I would assume has no high quality video or streaming, because RDP sucks for VDI, especially over a wan.

The existing VDI infrastructure uses RDP as the display protocol, so the new Microsoft implementation will be no better or worse in that regard than VMware VDI.

ICA and the new Teradici client are 50 times better.

Whether a product is "better" depends on multiple factors. Reasons for which you consider a product to be "better" may not matter to someone else.

Hyper-V has got its costs to. I can run VMware completely in free linux as well now if I want.

If this were about free hypervisors, I'd for VMware without hesitation. However, when the network grows to a point where centralized management of the virtual infrastructure is required (e.g. vCenter, SCVMM), VMware starts to get significantly more expensive.
 

classy

Lifer
Oct 12, 1999
15,219
1
81
O rly?



The existing VDI infrastructure uses RDP as the display protocol, so the new Microsoft implementation will be no better or worse in that regard than VMware VDI.



Whether a product is "better" depends on multiple factors. Reasons for which you consider a product to be "better" may not matter to someone else.



If this were about free hypervisors, I'd for VMware without hesitation. However, when the network grows to a point where centralized management of the virtual infrastructure is required (e.g. vCenter, SCVMM), VMware starts to get significantly more expensive.

Look you can believe what you want. There is not that big of difference price wise between the two when all is said and done. Virtualization is about management. You set up two fully centralized management solutions, you need Vcenter for vmware and SCCM for Microsoft. With sccm typically only volume license shops take advantage of it because its so damn expensive separately. So while sccm is included, the typical volume license is probably around 50K per year. Another thing, the memory management on VMWare is better than that of Microsoft. So if you setup two identical solutions, I'll need more physical memory when using hyper-v over vmware. You checked out the price of server memory lately?

And the bullshit statement about vmware and novell is just that bullshit. Novell back in the mid to late 90s decided to stay with large infrastructures with their products. Microsoft starting with NT began to address the medium to small networks. And as we all know networks have grown everywhere. Novell missed the boat. So it wasn't just about cost. 6 years ago where I was working the consideration of switching to Microsoft was on the table. When the features and cost was all said done it was to expensive to switch to Microsoft from Novell. It was a large large bank system. Microsoft also adopted TCP/IP faster as well, which has become the standard protocol. It wasn't just because they were cheaper, there were other factors, even beyond what I mentioned that turned the tide Microsoft's way. Totally seperate scenario and situation. Nothing in common whatsoever.


Like I said I have not used Hyper-V in production yet. I know a couple of consultants, one said he liked it, the other was not that impressed. Two guys I generally trust as well. I am a Microsoft boy through and through. My old boss used to call me Mr. Gates , so I truly support them. But after two years of everyday use of virtualized servers, apart of building an infrastructure from the ground up, and a couple of VDI projects for several hundred desktops I speak from not overwhelming but solid experience. Those VMUGs also help with understanding as well when you are talking and networking with other folks who manage virtualization as well.

While this has absolutely nothing to do with the OP, as I stated earlier I don't think he can wrong with either one.
 

theevilsharpie

Platinum Member
Nov 2, 2009
2,322
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Look you can believe what you want. There is not that big of difference price wise between the two when all is said and done.

Err.... the entire reason the school is replacing the system is because they ran the numbers, and found that the VMware solution was more than 4x more expensive than the equivalent Microsoft solution. The price difference is somewhat exaggerated because the school receives a discount on Microsoft licensing, but nevertheless, the cost difference is very real.

Virtualization is about management. You set up two fully centralized management solutions, you need Vcenter for vmware and SCCM for Microsoft. With sccm typically only volume license shops take advantage of it because its so damn expensive separately. So while sccm is included, the typical volume license is probably around 50K per year.

I'm not sure where you're getting your prices from.

According to Microsoft's site, the retail price of SCVMM is $869 per host. For VDI implementations, Microsoft offers a client license per VM as an alternative that costs $40.

To provide some perspective, a 12-core vSphere Advanced license will set you back $2,806, and a 10-seat VMware View pack will cost you $1815, or $181.50 per seat.

Bit of a difference, isn't it :awe:

Another thing, the memory management on VMWare is better than that of Microsoft. So if you setup two identical solutions, I'll need more physical memory when using hyper-v over vmware. You checked out the price of server memory lately?

I have, actually. VMware vSphere Advanced is $1,937 more per server. According to HP's site, $1,937 will get me 32GB of PC3-10600R memory.

VMware ESXi is certainly more efficient with its memory usage, but I think it's safe to say that an additional 32GB of RAM will more than make up for that.

In addition, licensing for Microsoft RDS also covers connections to a session host, which will be far more memory-efficient than a hypervisor running a bunch of desktop VMs.

And the bullshit statement about vmware and novell is just that bullshit. Novell back in the mid to late 90s decided to stay with large infrastructures with their products. Microsoft starting with NT began to address the medium to small networks. And as we all know networks have grown everywhere. Novell missed the boat. So it wasn't just about cost. 6 years ago where I was working the consideration of switching to Microsoft was on the table. When the features and cost was all said done it was to expensive to switch to Microsoft from Novell. It was a large large bank system. Microsoft also adopted TCP/IP faster as well, which has become the standard protocol. It wasn't just because they were cheaper, there were other factors, even beyond what I mentioned that turned the tide Microsoft's way. Totally seperate scenario and situation. Nothing in common whatsoever.

VMware is in EXACTLY the same position Novell was. They both had an awesome product that is years ahead of the competition, and they both built an entire ecosystem around that product. Microsoft jumped into Novell's market by producing a much cheaper alternative that version over version gradually narrowed the functionality gap, until Novell customers simply couldn't justify the cost difference and began migrating to Microsoft's platform.

The virtualization world is going down that exact same path. Microsoft may not be able to meet the needs of a substantial portion of VMware's enterprise customer base, but they're capturing mid-market customers (who will likely stay with Microsoft as they grow), and Hyper-V is continually gaining features that previously kept customers on VMware. Unless VMware does something substantial (or substantially lowers their prices), I can see them being cornered into servicing a niche market that's not large enough to sustain the level of product development needed to compete in the greater virtualization market, just as Novell was.

Like I said I have not used Hyper-V in production yet. I know a couple of consultants, one said he liked it, the other was not that impressed. Two guys I generally trust as well. I am a Microsoft boy through and through. My old boss used to call me Mr. Gates , so I truly support them. But after two years of everyday use of virtualized servers, apart of building an infrastructure from the ground up, and a couple of VDI projects for several hundred desktops I speak from not overwhelming but solid experience. Those VMUGs also help with understanding as well when you are talking and networking with other folks who manage virtualization as well.

While this has absolutely nothing to do with the OP, as I stated earlier I don't think he can wrong with either one.

Both solutions will probably meet the OP's needs, but claiming that VMware is "going no where, ever" is, quite frankly, ignorant. Microsoft has beaten numerous competitors with superior technology by offering a less expensive product that was good enough for most of the market, and there's absolutely nothing special about VMware that prevents them from ever encountering such a fate.
 
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