Hyper-V vs. ESXi – Response to techtarget’s article

So, I was reading this article which talks about the advantages of MS Hyper-V over VMware ESXi and I’m amazed at the FUD that Microsoft has been spreading. I don’t usually write about virtualization over at this blog, but this I just have to clear.

It is quite clear from the article that the author, Greg Shields, has no clue about ESXi (or Hyper-V, for that matter). Greg starts his post with the following sentence,

Hyper-V Server is a free, recently released download from Microsoft that brings free virtualization hosting to small environments, as well as to those that don’t want to pay the extra cost of ESXi.

What extra cost Greg, would you care to explain ?

ESXi is free and has been for a while now.

Oh and ESXi supports SCSI (FC/iSCSI) and NFS data-stores, which means that the virtual machines can reside on any of the above, and not only flat files on a vmfs formatted volume.

Greg talks about the advantages of Hyper-V over ESXi and claims the following,

One particular administrative boon of Hyper-V Manager over ESXi is its use of NTFS partitions for the storage of VMs as opposed to VMware’s proprietary VMFS. Hyper-V Server can support the hosting of virtual machines through virtually all forms of Direct-Attached Storage and Network-Attached Storage, in addition to traditional SAN storage via iSCSI, SAS, and Fibre Channel. Since Hyper-V Manager runs atop Server Core, whatever storage back-end you select must have client-side support for this special operating system version.

First of all, Like I’ve already said, ESXi supports all transports that Hyper-V does and secondly, I really don’t understand why storing VMs on an NTFS partition is an advantage compared to VMFS ? How does it even matter where the VMs are stored ?

In my opinion, just the fact that ESXi is 32MB in size vs. the over 1GB of Hyper-V should be reason enough for a consumer to try ESXi. 1GB of Microsoft written software … hmmm .. let me calculate how many vulnerabilties would there be in that !

Now, I’m a fair guy and I do agree that Hyper-V has its advantages. Like the fact that it is a Microsoft product. And that reason by itself will make it the default option for a large number of Microsoft shops. But, this article here … give me a break ! I know a trashy article when I see one. I’m all for comparisons as long as they’re fair.

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