Re: Cluster splitting

Bernard,

Stretch clusters also fall under "geographically dispersed" clusters
category. As far as MSCS is concerned, setting up a stretch cluster or a
geo-cluster is no different than setting up a standard cluster. The same
rules that apply to standard clusters also apply to geo-clusters. The only
real difference in setup occurs at the storage level and possibly the
network setup for VLANs. For a stretch cluster, you'll have some additional
configuration in the SAN but this should be transparent to MSCS. When you
install MSCS, it should install like any other cluster.

Hope this helps.

Regards,
John


"Bernard Cheah [MVP]" <qbernard@xxxxxxxxxxxxxxxxxxx> wrote in message
news:ObTKlj$VGHA.2040@xxxxxxxxxxxxxxxxxxxxxxx
John, do you have any url for the 'stretch' cluster setup ?

--
Regards,
Bernard Cheah
http://www.iis-resources.com/
http://www.iiswebcastseries.com/
http://msmvps.com/blogs/bernard/


"John Toner [MVP]" <jtoner@xxxxxxxxxxxxxxxxxxxxx> wrote in message
news:%231ttA5TVGHA.3760@xxxxxxxxxxxxxxxxxxxxxxx
While MNS can be used in a geographically dispersed cluster, it is not
required for a geo-cluster. Personally, I would not recommend
considering
a
MSN quorum in a geocluster unless you had a 3rd site in the picture. For
Windows 2000, obviously there is no MSN and there are certainly
supported
geo-cluster solutions for W2K.

There are different kinds of geographically dispersed clusters. It
sounds
like you are considering a "stretch" cluster rather than a
geographically
dispersed cluster. A true geo-cluster would use a replication technology
to
synchronously copy data between storage arrays between sites.You will
always
need to get a third party involved to accomplish this type of cluster.

For stretch clusters, you would simply have an ISL between sites or some
other mechanism to stretch your SAN between sites. This is certainly
doable
and supported.

Regards,
John


"Bernard Cheah [MVP]" <qbernard@xxxxxxxxxxxxxxxxxxx> wrote in message
news:u9t$5nGVGHA.328@xxxxxxxxxxxxxxxxxxxxxxx
Thanks. I read about MNS and new stuff with W2k3 clustering.
However, the current environment is fully w2k based and from the KB.

- round trip below 500ms
- quorum this must be replicated

For same building - same vlan setup should not have more than 500ms
latency,
what about the quorum this? I'm planning to have both nodes connect to
the
same SAN, via FC of coz.
in a way - it would be same as both nodes are sitting in the same data
center. make sense to you?

--
Regards,
Bernard Cheah
http://www.iis-resources.com/
http://www.iiswebcastseries.com/
http://msmvps.com/blogs/bernard/


"Ryan Sokolowski (MVP)" <ryan@xxxxxxxxxxxxxxxxxxxxxxxx> wrote in
message
news:%23aKJQBEVGHA.1564@xxxxxxxxxxxxxxxxxxxxxxx
Sure thing...good topic and question. While one of my felow MVPs
(John
Toner) is much more the Geo-Cluster guy than I am, I'll try to screen
this
one for you...


You're referring to a Majority-Node Set (MNS) or Geographically
Dispersed
Cluster (Geo-Cluster) and there is lots of good guidance on how to
implement and architect this particular configuration (which is
significantly different from the traditional Quorum-Disk based
cluster
model).

Also please note that you must pay particular attention to the
Windows
Server Catalog as it concerns supported hardware/configurations.

Start here (even though you said it's W2K, not W2K3):

Geographically Dispersed Clusters in Windows Server 2003


http://www.microsoft.com/windowsserver2003/techinfo/overview/clustergeo.mspx

Windows clustering and geographically separate sites
http://support.microsoft.com/kb/280743

The Microsoft support policy for server clusters, the Hardware
Compatibility List, and the Windows Server Catalog
http://support.microsoft.com/kb/309395

These should get you started...hope this helps,
--Ryan



--
--
Ryan Sokolowski
MVP - Windows Server - Clustering
MCSE, CCNA, CCDA, BCFP

"A troubleshooter's best tool is the Event Viewer and understanding
the
events and messages contained therein."

This posting is provided "AS IS" with no warranties, and confers no
rights.

"Bernard Cheah [MVP]" <qbernard@xxxxxxxxxxxxxxxxxxx> wrote in message
news:%23KYeD$7UGHA.5364@xxxxxxxxxxxxxxxxxxxxxxx
Can anyone point me to any reference doc for splitting or extending
the
MSCS to two different building?
I'm looking at different buldings and different sites setup.......

Oh ya, this is w2k. not w2k3.

--
Regards,
Bernard Cheah
http://www.iis-resources.com/
http://www.iiswebcastseries.com/
http://msmvps.com/blogs/bernard/













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