Hyper-V vs VMware Clusters

Hi Experts,

We currently has a VMware cluster running in our production environment and we are about to renew our lease. We have two sites and we are using SRM between the for site recovery between sites.

We are  entertaining the idea to switch from VMware to MS Hyper-V for our production environment.

My questions,

What are your thoughts on VMWARE VS Hyper-V ?

Please let me know your thoughts
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
What are your thoughts on VMWARE VS Hyper-V ?

A question like this on EE, you'll get 50% stating VMware is better., and 50% stating Hyper-V is better.

Both are very good Hypervisors.

I think you might find it a struggle, trying to fill the "FULL SRM" functionality with Hyper-V. What were you going to use to replace SRM - Hyper-V Replica ?

Hyper-V Clustering is sensitive and built on Failover Clustering, which in  our opinion, is troublesome on a weekly basis with SAN Vendors, e.g. NetApp, Dell, EMC and HP.

Advantage, Hyper-V is cheaper than VMware vSphere on paper, when you purchase it originally, more expensive when it goes wrong and needs fixing.

Hey, you probably already have the Microsoft Datacenter Licenses, so no cost to switch OS.

You may need to purchase SCVMM

Future Support maybe more costly.
TeavanaAuthor Commented:
Thank you for your response, I appreciate it.

Yes, if we go with Hper-v, we would replace SRM with Hyper-V Replica.

The reason why Hper-V came up was because of the VMware renewal license cost vs the MS license cost for Hyper-V.
Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Hyper-V Replica is no replacement for SRM.

Hyper-V Recovery Manager is kind of the equivalent of SRM, and that's additional cost, with Windows Azure.

Hyper-V replica is maybe the same as vSphere Replication!

read these by fellow vExperts...


Do you mean the VMware Support Renewal ?

Do you take out a support Contract with Microsoft ?
Acronis True Image 2019 just released!

Create a reliable backup. Make sure you always have dependable copies of your data so you can restore your entire system or individual files.

TeavanaAuthor Commented:
Yes, vmware renewal, sorry.
No, we currently do not have a support contract with Microsoft that why I am doing the ground work.   thanks
Philip ElderTechnical Architect - HA/Compute/StorageCommented:
I suggest looking at the new Windows Server Technical Preview. The new feature set is especially good for clusters, stretch clusters, and storage.
TeavanaAuthor Commented:
Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
VMware vSphere 6.0 is released soon!

Do you want an upgrade for FREE or NOT ?
TeavanaAuthor Commented:
I personally prefer the VMware virtual environment which is what we have In our production environment.

We have some team members pushing for Hpyer-V clustering to replace our vmware infrastructure .

As you mentioned,  Hpyer-V looks cheaper $ vs vmware until something goes wrong.
Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
As you have already purchased VMware vSphere licenses and Microsoft Windows licenses, the question is ongoing support and subscription for VMware or Microsoft?

Which are optional.

VMware bundles subscription with it's Support contract, which entitles you to upgrade to vSphere 6.0 for FREE.

You would have to check with Microsoft what Licensing Contract you would need to upgrade to the next version of Windows Server for FREE...

But Microsoft Support Contracts and Software Assurance are usually two different bundles.

So to cost compare like to like, you would need to compare

VMware Support and Subscription versus Microsoft Support Contracts and Software Assurance.

Currently you do not have a Microsoft Support contract which leaves you at risk, if a MIcrosoft Product fails.

We have some team members pushing for Hpyer-V clustering to replace our vmware infrastructure .

Ask them to test it and demo it versus VMware vSphere!
Philip ElderTechnical Architect - HA/Compute/StorageCommented:
We've been deploying Hyper-V failover clusters since Windows Server 2008 RTM.

Our clusters have been and are stable right through to today's 2012 R2 based setups.

The catch with current versions of Hyper-V is its low tolerance for poorly configured or working network infrastructure. VMware has a lot more tolerance for these kinds of environments. This can be good or bad depending on one's point of view. ;)

Our environments avoid iSCSI by deploying DAS based SAS solutions whether via storage shelf (P2000 MSA Dual SAS, IBM DS3524, or Dell MD3220 Dual SAS). Today's solutions are based on DAS based JBOD with the smallest cluster setup having just two nodes and a common connected JBOD (Asymmetric Cluster). We base storage on Scale-Out File Server cluster utilizing Storage Spaces for larger deploys starting at two SoFS nodes. Compute in the form of Hyper-V failover clusters start at two nodes and up. Fabric between SoFS and Hyper-V can be 10GbE, 40GbE, or RDMA based infrastructure.

Hyper-V provides a very lucrative option for companies that have a License Agreement and Software Assurance in place. It's _included_ already. No extra costs.

Please have a look at my company's blog for more: MPECS Inc. Blog: Clusters Category
Shabarinath RamadasanInfrastructure ArchitectCommented:
I am running multiple Hyper-V clusters and got a stable environment now. With the release of Windows server 2012 R2, Hyper-V really improved a lot. And on each version, I gain more confidence. No down time due to an issue with Hyper-V.

From my view point, both are good hypervisors. An apple to apple comparison on the minute features is required to conclude which one is best for your environment.  On a general comparison, Vmware may have slight advantage when compared to the features they offer. At the same time, its also crucial to review what features you need for your environment.

Good luck !
TeavanaAuthor Commented:
Thank you for your responses, I appreciate it. We meet this week to decided the verdict of which  way we will proceed.

Did you build your Hyper-V virtual environment from scratch, or did you have another migrate from a pervious virtual environment ?

Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
We build them always from scratch. especially if using SCVMM 2012 R2!
Philip ElderTechnical Architect - HA/Compute/StorageCommented:
In an existing AD environment we would stand up our clusters based on fresh installs of the OS.

I suggest having a domain linked root OU in AD with nested OUs for your cluster nodes and any management desktop OS systems to allow for customized GPOs that make things fairly simple for management.

The process from there is fairly straight forward:
 + Storage configuration: Need witness disk (1.5GB) and common files storage (Sum Node RAM + 50GB or so)
 + Node OS setup (We install on Core but Full can be utilized)
 + Drivers
 + Networking (Depending on topology we team as follows; 2 ports Management, 2 ports dedicated vSwitch)
 + Test-Cluster - Validation (Note that any NIC/Team with an IP should/must be on a separate subnet)
 + New-Cluster - Stand up the cluster
 + Verify Witness/Quorum assigned to the small LUN
 + CSV Common Files LUN and any other
 + Hyper-V Nodes: Set Hyper-V Configuration and VHD Location to C:\ClusterStorage\Volume# (Common Files)

That's a pretty high view of the overall cluster setup process that we run. Our steps are entirely in PowerShell.
TeavanaAuthor Commented:
Thank you, I appreciate it.

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TeavanaAuthor Commented:
Thank you!
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