SCC and CCR

SSV · Joined: 05 Aug 2007 Posts: 2

Thinking about SCC and CCR cluster for Exchange 2007
Active server will be SCC cluster and Passive server will be single DAS
server in CCR. appreciate your thoughts on this model.
what is bandwidth requirement for SCR cluster?

Thank you
SSV

Archived from group: microsoft>public>exchange>clustering

John Fullbright · Joined: 05 Aug 2007 Posts: 365

SCC + SCR or CCR + SCR. SCC + CCR isn't valid.

SCC requires one copy of the data and is similar to what we do with Exchange
2003 clustering. CCR has two copies of the data, which provides some added
protection against hardware failure (if the two copies are on different
storage) that SCC does not. The cost is, of course, twice the storage.
Either way, SCR to the DR site provides yet another copy of the data in a
different physical location for added protection and recoverability.

"SSV" wrote in message @microsoft.com...
> Thinking about SCC and CCR cluster for Exchange 2007
> Active server will be SCC cluster and Passive server will be single DAS
> server in CCR. appreciate your thoughts on this model.
> what is bandwidth requirement for SCR cluster?
>
> Thank you
> SSV

SSV · Joined: 05 Aug 2007 Posts: 2

Thank you for the post.

would it be possible to do CCR with SCC, means active server will be SCC and
passive server will be another SCC. in that scenario how the heart beat
works. all four nodes will be connected to private newtork. when it comes to
failure on Active SCC cluster how Passive cluster reacts?
want to inlcude drawing, but no option for attachemnts here.

Thank you
SSV

"John Fullbright" wrote:

> SCC + SCR or CCR + SCR. SCC + CCR isn't valid.
>
> SCC requires one copy of the data and is similar to what we do with Exchange
> 2003 clustering. CCR has two copies of the data, which provides some added
> protection against hardware failure (if the two copies are on different
> storage) that SCC does not. The cost is, of course, twice the storage.
> Either way, SCR to the DR site provides yet another copy of the data in a
> different physical location for added protection and recoverability.
>
>
> "SSV" wrote in message
> @microsoft.com...
> > Thinking about SCC and CCR cluster for Exchange 2007
> > Active server will be SCC cluster and Passive server will be single DAS
> > server in CCR. appreciate your thoughts on this model.
> > what is bandwidth requirement for SCR cluster?
> >
> > Thank you
> > SSV
>
>
>

Scott Schnoll [MSFT] · Joined: 05 Aug 2007 Posts: 89

Hi SSV,

It is not possible to do that. You cannot have SCC and CCR in the same
cluster.

--
Regards,

Scott Schnoll
Microsoft Corporation
This posting is provided "AS IS" with no warranties, and confers no
rights. Please do not send email directly to this alias. This alias is for
newsgroup purposes only.

"SSV" wrote in message @microsoft.com...
> Thank you for the post.
>
> would it be possible to do CCR with SCC, means active server will be SCC
> and
> passive server will be another SCC. in that scenario how the heart beat
> works. all four nodes will be connected to private newtork. when it comes
> to
> failure on Active SCC cluster how Passive cluster reacts?
> want to inlcude drawing, but no option for attachemnts here.
>
> Thank you
> SSV
>
> "John Fullbright" wrote:
>
>> SCC + SCR or CCR + SCR. SCC + CCR isn't valid.
>>
>> SCC requires one copy of the data and is similar to what we do with
>> Exchange
>> 2003 clustering. CCR has two copies of the data, which provides some
>> added
>> protection against hardware failure (if the two copies are on different
>> storage) that SCC does not. The cost is, of course, twice the storage.
>> Either way, SCR to the DR site provides yet another copy of the data in a
>> different physical location for added protection and recoverability.
>>
>>
>> "SSV" wrote in message
>> @microsoft.com...
>> > Thinking about SCC and CCR cluster for Exchange 2007
>> > Active server will be SCC cluster and Passive server will be single DAS
>> > server in CCR. appreciate your thoughts on this model.
>> > what is bandwidth requirement for SCR cluster?
>> >
>> > Thank you
>> > SSV
>>
>>
>>

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