VMotion

May 3, 2010 | 12 comments

While VMware ESX exposes the latest performance-enhancing CPU instructions to virtual machines, Red Hat Enterprise Virtualization (RHEV) takes a more conservative approach -- downgrading all CPUs to masquerade as an old Pentium II.

January 21, 2010 | 30 comments

Microsoft Virtualization publishes an embarrassing guest post refuting vSphere advantages, doing more harm than good.

October 14, 2009 | 5 comments

When an administrator is connected to an VMware ESX virtual machine remote console and that VM is migrated with VMotion to another host, the connection seamlessly migrates to the destination host. Hyper-V does not offer this capability.

July 23, 2009 | 13 comments

Unlike Storage VMotion from VMware, Quick Storage Migration requires a VM to suspend and be unavailable for a period of time, making it unsuitable for production.

May 19, 2009 | 13 comments

In yesterday’s post I showed how VMware ESX 4 can be run as a guest OS inside a virtual machine on ESX 4. As a follow-up, here is an interesting feat that can be performed with such a configuration: migrate a running VM with VMotion from the physical ESX host to the virtual ESX host. [...]

October 21, 2008 | No comments

Well, today’s the day.  The announcements have begun:  SCVMM is finally out.  I’m kind of waiting for someone to say Microsoft released it “early,” since the (latest) announced stated end of October. Brace yourself for a tidal wave of FUD from Redmond that perhaps only the Linux community has known.  Here are a couple examples [...]

October 10, 2008 | No comments

There are quite a few articles these days comparing VMware virtualization with Microsoft Hyper-V, which is to be expected since the press knows this topic is in the foreground for many IT managers right now. A typical, albeit incorrect, comparison goes something like this: Both products are bare metal hypervisors VMware has lots of great [...]

October 2, 2008 | No comments

I saw humor in this article comparing VMware VMotion with Microsoft Quick Migration: So, the best thing to do is to test the applications that will eventually run in virtual servers with Quick Migration and see what happens. Then, in a physical server with the installed application, run it and use it to perform an [...]