| Author |
Message |
Russ Kaufmann [MVP]
Guest
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 Posted:
Wed Sep 28, 2005 12:50 am Post subject:
Re: Can I setup cluster in 'workgroup' configuration |
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"Dean" <Dean@discussions.microsoft.com> wrote in message
news:5542079A-2873-4EC7-A9B8-6D03FCD64CF5@microsoft.com...
| Quote: | Hmmm, quite suprised with your answer there Rodney saying "NEVER" cluster
DC's.
You centainly CAN have DC's in a cluster, the only configuration that MS
dont support is exchange server cluster nodes as DC's.
|
Can and should are two very different things.
--
Russ Kaufmann
MVP - Windows Server - Clustering
http://www.clusterhelp.com - Cluster Website
http://msmvps.com/clusterhelp - New Blog
http://spaces.msn.com/members/russkaufmann - Old Blog |
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Russ Kaufmann [MVP]
Guest
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| Posted:
Wed Sep 28, 2005 8:25 am Post subject:
Re: Can I setup cluster in 'workgroup' configuration |
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"Dean" <Dean@discussions.microsoft.com> wrote in message
news:8E08948C-68BC-414D-B375-3650E3D58316@microsoft.com...
| Quote: | You guys stick by whatever you want to, your policies are exactly that
"Your
policies"..
In an everyday environment that has access to AD, yes i wouldnt cluster
DC's, however in certain situations i.e. a DMZ or a stand alone
environment
say an environment just for a website (couple of IIS servers with backend
SQL
cluster) that you need / want to be seperate (maybe its a hosted service
for
instance) then i would / do use clustered DC's regular.
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In such a case, I would get two low-end servers (they are pretty cheap, you
know) and use them for AD services.
Also, I try to think towards the future and possible issues with support and
possible migration or growth concerns when I build a highly available
environment. It seems to me that there are too many concerns and/or possible
concerns to take a gamble.
| Quote: | I mean come on its not like they are really fully functional DC's, in the
first place all they are there for is authentication for the cluster
service
account. You guys are being far to literal about this...
At the end of the day the only clustered DC's that arent supported by MS
are
exchange ones, Clustered DC's in a domainlet configuration as i have
stated
ARE supported by MS, so what does that tell you!!!!!!
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It seems to me that there was a policy before the existing Exchange policy.
Hmmm, I would guess it was wrong. <G>
In all seriousness, I take HA very seriously as there is usually a damned
good reason for the implementation of clustering. That damn good reason
doesn't suddenly go away because of the need to spend less than $5,000 to
add two domain controllers.
--
Russ Kaufmann
MVP - Windows Server - Clustering
http://www.clusterhelp.com - Cluster Website
http://msmvps.com/clusterhelp - New Blog
http://spaces.msn.com/members/russkaufmann - Old Blog |
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Dean
Guest
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| Posted:
Sun Oct 02, 2005 4:50 pm Post subject:
Re: Can I setup cluster in 'workgroup' configuration |
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I must say though, i do like the way that you are all saying you cant /
shouldnt do it.
But not one of you has given a single valid reason why you shouldnt.
Comments like "i would never do it" and "Just because it can be done doesnt
mean you should" without a reason have no validity at all.
Whilst i have given valid reasons for doing it and support by MS of such a
setup IS not only valid but is also documented by MS themselves as a solution.
"Don Wilwol" wrote:
| Quote: | I'm with Rod and Russ. I've clustered DC's in a lab, but I'd NEVER put it in
a production environment.
--
Hope it helps
dw
_______________________________
Don Wilwol
donwilwol(DELETE)@yahoo.com
http://spaces.msn.com/members/wilwol/
"Russ Kaufmann [MVP]" <russ@exchangemct.com> wrote in message
news:%23hAn4U6wFHA.3772@TK2MSFTNGP11.phx.gbl...
"Dean" <Dean@discussions.microsoft.com> wrote in message
news:5542079A-2873-4EC7-A9B8-6D03FCD64CF5@microsoft.com...
Hmmm, quite suprised with your answer there Rodney saying "NEVER" cluster
DC's.
You centainly CAN have DC's in a cluster, the only configuration that MS
dont support is exchange server cluster nodes as DC's.
Can and should are two very different things.
--
Russ Kaufmann
MVP - Windows Server - Clustering
http://www.clusterhelp.com - Cluster Website
http://msmvps.com/clusterhelp - New Blog
http://spaces.msn.com/members/russkaufmann - Old Blog
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Don Wilwol
Guest
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| Posted:
Sun Oct 02, 2005 4:50 pm Post subject:
Re: Can I setup cluster in 'workgroup' configuration |
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OK, if I must :-)
Authentication. A DC is not a cluster aware service. If a authenticated
application fails but the node does not, authentication can become
unpredictable.
DNS. A DC must point to a DDNS for it to work. Now you've added two semi DNS
servers that simply add complexity.
Scalability. Just read your Q article Q281662. Clustering other programs,
such as SQL or Exchange, in a scenario where the nodes are also domain
controllers, may not result in optimal performance due to resource
constraints.
Also from Q281662. You cannot cluster domain controllers for fault
tolerance. You can promote computers to be domain controllers, and then you
can install the Cluster service on those computers, but there is no method
to store Active Directory on any one of the cluster's managed drives. There
is no "failover" of Active Directory.
Also from Q281662. You may want to consider making cluster nodes domain
controllers (refer to article 171390 for more information), but if a domain
controller is already local, or there is a reliable high-speed connectivity
to a domain controller available, Microsoft does not recommend implementing
them on cluster nodes.
If you MUST, its one thing, just because you can is another.
--
Hope it helps
dw
_______________________________
Don Wilwol
donwilwol(DELETE)@yahoo.com
http://spaces.msn.com/members/wilwol/
"Dean" <Dean@discussions.microsoft.com> wrote in message
news:3E590C11-D661-4B0D-A78E-8487A05040AE@microsoft.com...
| Quote: | I must say though, i do like the way that you are all saying you cant /
shouldnt do it.
But not one of you has given a single valid reason why you shouldnt.
Comments like "i would never do it" and "Just because it can be done
doesnt
mean you should" without a reason have no validity at all.
Whilst i have given valid reasons for doing it and support by MS of such a
setup IS not only valid but is also documented by MS themselves as a
solution.
"Don Wilwol" wrote:
I'm with Rod and Russ. I've clustered DC's in a lab, but I'd NEVER put it
in
a production environment.
--
Hope it helps
dw
_______________________________
Don Wilwol
donwilwol(DELETE)@yahoo.com
http://spaces.msn.com/members/wilwol/
"Russ Kaufmann [MVP]" <russ@exchangemct.com> wrote in message
news:%23hAn4U6wFHA.3772@TK2MSFTNGP11.phx.gbl...
"Dean" <Dean@discussions.microsoft.com> wrote in message
news:5542079A-2873-4EC7-A9B8-6D03FCD64CF5@microsoft.com...
Hmmm, quite suprised with your answer there Rodney saying "NEVER"
cluster
DC's.
You centainly CAN have DC's in a cluster, the only configuration that
MS
dont support is exchange server cluster nodes as DC's.
Can and should are two very different things.
--
Russ Kaufmann
MVP - Windows Server - Clustering
http://www.clusterhelp.com - Cluster Website
http://msmvps.com/clusterhelp - New Blog
http://spaces.msn.com/members/russkaufmann - Old Blog
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