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Setting up a microsoft cluster 2008 and identifying requirements in terms of datastores.

Posted on 2013-06-20
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Hi guys, I hope you are all well and can assist.

Guys I want to set up a 2008 microsoft cluster, and at the first steps.

Im trying to understand what I need to do in terms of shared disk storage and what I can and cannot do.

If I have a datastore that is being used by lots of virtual machines to store their disk files, can I use this SAME datastore as a shared disk for a cluster?

Or

Do I need to create a new datastore that is to be exclusively used by a cluster?

Any help on this greatly appreciated.
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Question by:Simon336697
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by:Simon336697
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Hi djsharma,

Thanks for the links.

I will look through this information, but I need a rather quick answer for testing purposes.

The crux of what i am trying to find out is below...

Scenario:

Let's say there are 5 vms all using DATASTORE 1.
Now, I create another 2 vms that I wish to cluster.
For these 2 vms, I want to know if I can use DATASTORE 1 as a shared disk for clustering WITHOUT impacting the other vms on this datastore, or whether I have to create a new datastore and just have the 2 clustered vms access it without any other vms?

I just dont want to destroy any other vms by pointing the 2 new clustered vms to a datastore that is already being used by other existing vms.

I hope this makes sense.
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by:Andrew Hancock (VMware vExpert / EE MVE^2)
Andrew Hancock (VMware vExpert / EE MVE^2) earned 333 total points
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Create a new datastore for Cluster use with Microsoft Failover Clustering.

The other datastore with VMs stored on it, how are these accessed by VMware Hosts or Microsoft Hosts?
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by:Simon336697
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Hi hanccocka,
Theybare accessed by VMware hosts and vms.
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by:Andrew Hancock (VMware vExpert / EE MVE^2)
Andrew Hancock (VMware vExpert / EE MVE^2) earned 333 total points
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In that case *DO NOT* under any circumstances add them to a Windows Server.

Windows and ESX hosts access the same datastore is a disaster, and will cause corruption, you will need to create new LUNs on the SAN.
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by:Simon336697
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Thanks everyone.
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