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sc_2111
Enthusiast
Enthusiast

VMotion and RDM

HI ,

as far as I knew Vmotion is not supported for VM which uses RDM, so I thought it wouldn't work .

However while "explaining" this to a customer we tried to vmotion a VM which has a RDM disk , and worked just fine .

Am I wrong in thinking that it shouldn't have worked ?

thanks

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esiebert7625
Immortal
Immortal

Yes Vmotion definitely works with RDM...

See this guide:

http://www.vmware.com/pdf/esx25_rawdevicemapping.pdf

fyi...if you find this post helpful, please award points using the Helpful/Correct buttons...thanks

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esiebert7625

sc_2111
Enthusiast
Enthusiast

As MSCS clustering is not supported with RDM I thought it was a limitation of RDM .

Thanks

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steve31783
Enthusiast
Enthusiast

Vmotion defenitely works with RDM.

Vmotion does NOT work with MSCS, unless you're clustered VMs are installed on shared storage. Since the VMWare best practice for MSCS is to install on local storage, you cannot use Vmotion.

MSCS clustering is supported (best practice) with RDM. I believe you also must be using physical compatability mode.