Exchange 2007 CCR vs VMware VMotion

RJ · Joined: 05 Aug 2007 Posts: 1

Our company is considering deploying Exchange 2007 CCR for high availability.
However, our server group is moving towards VMWare's VMotion solution for HA
which they feel negates our need to use CCR. I am trying to determine which
is the best solution for Exchange. Does anyone have any whitepapers or
reference documents to help shed light on this?

Archived from group: microsoft>public>exchange>clustering

Lehr · Joined: 09 Jan 2008 Posts: 22

"Andy David {MVP}" wrote:

> On Sat, 16 Feb 2008 00:22:03 -0800, Lehr
> wrote:
>
> >My opinion is that CCR cluster is much better solution than VMWare HA.
> >VMWare HA relies on cluster where ESX hosts use same(shared) storage...so
> >when that storage goes down you don't have nothing.
> >With CCR, storage is separated...every exchange host has it's own storage,
> >copy of logs and database...
>
> Yep.
> And before CCR, I would never have recommended clustering to anyone.

And now with W2k8 server it gets another dimension because of different
subnet clustering....CCR rulz Smile

Mark Arnold [MVP] · Joined: 05 Aug 2007 Posts: 1126

Yes, CCR is the best solution if you have any SAN other than NetApp.
If you have NetApp then the conversation is a little more difficult to
answer.

Russ Kaufmann [MVP] · Joined: 05 Aug 2007 Posts: 69

"Lehr" wrote in message @microsoft.com...
>> Yep.
>> And before CCR, I would never have recommended clustering to anyone.
>
> And now with W2k8 server it gets another dimension because of different
> subnet clustering....CCR rulz Smile

Be careful trying to stretch a CCR implementation. After all, both nodes of
CCR need to be in the same AD site, and if the AD site is stretched, then
there are other issues to consider such as where to place the FSW and how
will HTs work with regards to the transport dumpster.

--
Russ Kaufmann
MVP - Windows Server - Clustering
ClusterHelp.com, a Microsoft Certified Gold Partner
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Mark Arnold [MVP] · Joined: 05 Aug 2007 Posts: 1126

On Sun, 24 Feb 2008 23:31:01 -0800, JPF
wrote:

>I imagine a number of Exchange architects are being forced to discuss the
>options ESX brings to the equation, especially when the server provisioning
>guys are being dined by VMWare weekly.
>
>Did MS really pull the DAS documentation for their CCR implementation?
>
>
Yeah, it was within days. Back in August 06 IIRC. It wasn't just CCR
though, it was everything. Quite a few MSFT UK people choked on their
corn flakes when they read it because they knew it was a cluster-fisk
from a marketing perspective. It was one of those IT Showcase docs
from ITG written by the Russian whose name escapes me (even though it
shouldn't since I've met him enough times and is an exceptional guy) I
think it got put back later in a radically different form but it's not
referred to anyway after MS released those enormous docs on the
/exchange site "planning a simple/complex/blah" docs. They're the ones
to pay real attention to.

Mark Arnold [MVP] · Joined: 05 Aug 2007 Posts: 1126

http://technet.microsoft.com/en-us/library/bb687807.aspx is the
download link for the one that got re-written to please all parties.

Thanks anyway Scott.

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