Comments on: Hyper-V, not in my datacenter (part 3: Motions and storage)

By: virtualizationlady

virtualizationlady — Mon, 03 Aug 2009 20:32:47 +0000

VMotion CPU check has even been way enhanced with the introduction of EVC in VMware. I have even posted earlier how you can enable VMotion without any problems between different CPU generation using VMware EVC. I thought I will share this with you and your reader. The info can be found at:

http://www.virtualizationteam.com/virtualizatio...

Thanks,
Virtualization Master

By: virtualizationlady

virtualizationlady — Mon, 03 Aug 2009 13:32:47 +0000

http://www.virtualizationteam.com/virtualizatio...

Thanks,
Virtualization Master

By: Hyper-V, not in my datacenter! | VMGuru.nl - I choose (a virtual) life!

Hyper-V, not in my datacenter! | VMGuru.nl - I choose (a virtual) life! — Sun, 07 Dec 2008 10:32:04 +0000

[...] Hyper-V, not in my datacenter )part 3 – Motions & storage) [...]

By: Duncan

Duncan — Sat, 06 Dec 2008 11:43:05 +0000

If the VM’s are critical you are probably using HA for stateless clustering or MSCS. Or in the future, Fault Tolerance.

VMotion is indeed used to prevent downtime for the guest OS. That’s the strength of the feature, and that’s not what QuickMigration does. That’s the point that Gabe is trying to make.

By: Stu Fox

Stu Fox — Fri, 05 Dec 2008 01:17:56 +0000

So regardless of whether you are using Vmotion to move machines around, if they are that critical what else are you doing to protect the service that those machines provide? VMotion is useful for planned downtime of the host, and for load redistribution but it doesn’t provide your application with any protection should the host fail, or should the guest OS fail. VMotion/Live Migration is only part of the protection story (and yes, it is useful and I wouldn’t say otherwise).

On the CPU checking thing, I believe that the CPU check is actually done at the time you create the cluster, not at the time of failover. If they are different that gets flagged as a warning. That’s my understanding at least.

And yes, there is some storage wastage in the current release, that is addressed in R2.

Cheers

Stu

Disclaimer: I work for Microsoft NZ. The opinions I post are not on behalf of my employer.

By: VCritical · IGT Part 2: SAN Misers

VCritical · IGT Part 2: SAN Misers — Thu, 04 Dec 2008 12:17:05 +0000

[...] covered this topic in a more lighthearted way back in October and Gabes Virtual World has a current article that discusses Hyper-V storage requirements.Â The latter emphasizes how one VM per LUN greatly [...]

By: Hyper-V - Du kommst hier net rein | Total Verfriemelt

Hyper-V - Du kommst hier net rein | Total Verfriemelt — Thu, 04 Dec 2008 11:41:32 +0000

[...] Teil 3: Motions and storage [...]

By: Microsoft Hyper-V Jokes | Malaysia VMware Communities

Microsoft Hyper-V Jokes | Malaysia VMware Communities — Wed, 03 Dec 2008 03:51:32 +0000

[...] Hyper-V, not in my datacenter Part 3 – Gabes Virtual World [...]

By: Series: Hyper-v, not in my Datacenter part3 « ICT-Freak.nl

Series: Hyper-v, not in my Datacenter part3 « ICT-Freak.nl — Tue, 02 Dec 2008 11:41:28 +0000

[...] Lees de rest hier: http://www.gabesvirtualworld.com/?p=107 [...]