ptsmartin
asked on
Hyper-V Failover Cluster Disk Allocation
I'm setting up a failover cluster with 3 active nodes soon to be 4. And I'm running into a problem planning form my Hyper-V environment.
From: http://technet.microsoft.com/en-us/library/dd197460%28WS.10%29.aspx
MS recommends use a separate disk for each virtual machine: We strongly recommend that for each virtual machine, you use a separate disk (LUN) in cluster storage.
My question is, how do I create an environment with more than 20-23 (available drive letters) volumes for VMs? Or is 20-23 (available drive letters) my limit?
Thanks
From: http://technet.microsoft.com/en-us/library/dd197460%28WS.10%29.aspx
MS recommends use a separate disk for each virtual machine: We strongly recommend that for each virtual machine, you use a separate disk (LUN) in cluster storage.
My question is, how do I create an environment with more than 20-23 (available drive letters) volumes for VMs? Or is 20-23 (available drive letters) my limit?
Thanks
ASKER CERTIFIED SOLUTION
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
So why are you not opting for Clustered Shared Volumes
http://www.savilltech.com/Videos/CSVDeepDive/CSVDeepDive.wmv
http://www.savilltech.com/Videos/Clustering_in_a_virtual_world/Clustering_in_a_virtual_world.wmv
http://www.savilltech.com/Videos/2008R2Networks/2008R2Networks8006001mbps.wmv
Let me know if anything clicks.
http://www.savilltech.com/Videos/CSVDeepDive/CSVDeepDive.wmv
http://www.savilltech.com/Videos/Clustering_in_a_virtual_world/Clustering_in_a_virtual_world.wmv
http://www.savilltech.com/Videos/2008R2Networks/2008R2Networks8006001mbps.wmv
Let me know if anything clicks.
ASKER
I have trouble moving VMs from one server to another when I use CSV. If the VM host and the CSV Current Owner are not the same, the VM will not start.
I don't any trouble migrating VMs from one host to another if I have only 1 VM tied to a volume.
I don't any trouble migrating VMs from one host to another if I have only 1 VM tied to a volume.
From What I understand this is what you are able to do.
http://blogs.technet.com/windowsserverexperts/archive/2010/01/29/hyper-v-csv-not-required-for-live-migration.aspx
So your live migration using CSV is not working. Let me know if you interested in fixing it.
Regards,
Shahid
http://blogs.technet.com/windowsserverexperts/archive/2010/01/29/hyper-v-csv-not-required-for-live-migration.aspx
So your live migration using CSV is not working. Let me know if you interested in fixing it.
Regards,
Shahid
ASKER
Thanks for the link. Here is the trouble I run into using CSV's. They show as a placement for my VM in SCVMM, but when I select the drive letter and try to continue through a wizard (V2V or P2V), I get the following error:
Error (10608)
Cannot create a highly available virtual machine because Virtual Machine Manager could not locate or access C:\ClusterStorage\Volume1\ .
Recommended Action
Ensure that the path exists and that the path is for a cluster disk in available storage, and then try the operation again.
Do I need to set permissions on the CSV to allow SCVMM to write to it? I do not have problems writing to individually assigned LUNs
Error (10608)
Cannot create a highly available virtual machine because Virtual Machine Manager could not locate or access C:\ClusterStorage\Volume1\
Recommended Action
Ensure that the path exists and that the path is for a cluster disk in available storage, and then try the operation again.
Do I need to set permissions on the CSV to allow SCVMM to write to it? I do not have problems writing to individually assigned LUNs
ASKER
I am able to place VMs on the CSV as long as the current owner of the CSV in the Cluster is the same as the server I'm placing the VM on.
Also I can can only migrate VMs from one host to another if the current owner of the CSV is the same as the new host.
Also I can can only migrate VMs from one host to another if the current owner of the CSV is the same as the new host.
ASKER
I opened a new thread with my current CSV issues:
https://www.experts-exchange.com/questions/25878382/Hyper-V-Network-NICs.html
https://www.experts-exchange.com/questions/25878382/Hyper-V-Network-NICs.html
Sorry for the late reply... was caught up in a few thing.
I will try to help in the new thread.
Regards,
Shahid.
I will try to help in the new thread.
Regards,
Shahid.
ASKER
I just deleted...My issue was a couple of things:
For the individual VM, my order for the Network for live migration was not in the correct order and enabled properly.
This video helped solve that problem:
http://www.savilltech.com/Videos/2008R2Networks/2008R2Networks8006001mbps.wmv
And I did not have client for MS Networks selected on my Heartbeat Network which was being used as the live migration network.
Found that on this threat:
http://social.technet.microsoft.com/Forums/en/virtualmachinemgrclustering/thread/f60a4311-03a3-453f-891f-a1fa3d3f10d5
I'm going to migrate some VMs with unique LUNs to my CSV and see how things work.
Thanks again
For the individual VM, my order for the Network for live migration was not in the correct order and enabled properly.
This video helped solve that problem:
http://www.savilltech.com/Videos/2008R2Networks/2008R2Networks8006001mbps.wmv
And I did not have client for MS Networks selected on my Heartbeat Network which was being used as the live migration network.
Found that on this threat:
http://social.technet.microsoft.com/Forums/en/virtualmachinemgrclustering/thread/f60a4311-03a3-453f-891f-a1fa3d3f10d5
I'm going to migrate some VMs with unique LUNs to my CSV and see how things work.
Thanks again
Infact I was just about the make a post on your new thread. I too was sensing that you might have n/w configuration issue. Have a look at these post when you have the time.
http://blogs.technet.com/askcore/archive/2009/02/13/what-is-a-microsoft-failover-cluster-virtual-adapter-anyway.aspx
http://blogs.technet.com/askcore/archive/2010/02/12/windows-server-2008-failover-clusters-networking-part-1.aspx
http://blogs.technet.com/askcore/archive/2010/02/22/windows-server-2008-failover-clusters-networking-part-2.aspx
http://blogs.technet.com/askcore/archive/2010/02/25/windows-server-2008-failover-clusters-networking-part-3.aspx
Let me know how it goes.
Regards,
Shahid
http://blogs.technet.com/askcore/archive/2009/02/13/what-is-a-microsoft-failover-cluster-virtual-adapter-anyway.aspx
http://blogs.technet.com/askcore/archive/2010/02/12/windows-server-2008-failover-clusters-networking-part-1.aspx
http://blogs.technet.com/askcore/archive/2010/02/22/windows-server-2008-failover-clusters-networking-part-2.aspx
http://blogs.technet.com/askcore/archive/2010/02/25/windows-server-2008-failover-clusters-networking-part-3.aspx
Let me know how it goes.
Regards,
Shahid
ASKER
I forgot to ask earlier. How do you recommend disk allocation?
My CSV will be stored on a SAN. Would it be best practice to allocate 1 drive that will accommodate all of my VMs and then a 2nd for snapshots?
Or would you recommend having several CSV volumes and distribute my VMs amongst them? Same theory for the snapshots?
Thanks again
My CSV will be stored on a SAN. Would it be best practice to allocate 1 drive that will accommodate all of my VMs and then a 2nd for snapshots?
Or would you recommend having several CSV volumes and distribute my VMs amongst them? Same theory for the snapshots?
Thanks again
ASKER