Advice on fully redundant Hyper-V cluster
Hello to all you Open-e experts. I have been using DSS successfully in a Hyper-V environment. I currently have two separate Hyper-V servers and two DSS v6.00 up75 iSCSI SANs. Each 2008 R2 server is attached to one DSS iSCSI SAN via 10GB NICs and hosting several VMs.
I now would like to create a fully redundant setup using a Hyper-V cluster consisting of two clustered Hyper-V servers, two 10GB switches and two DSS iSCSI SANs. The final result would be a configuration in which ANY single device could fail but the overall system would continue to function.
Is this a possible/realistic expectation? Has anyone done this? I've seen the documentation for using DSS in a Windows Server cluster, but not using TWO DSS storage servers to appear as a single, redundant storage device for the cluster.
Any direction or advice would be greatly appreciated.
Thanks.
how are you getting on Olias ?
You mentioned: "I've seen the documentation for using DSS in a Windows Server cluster, but not using TWO DSS storage servers to appear as a single, redundant storage device for the cluster."
That's true, one can find how to set 2 x Open-E in iSCSI failover and connect 1 x Hyper-V to it. And connecting multiple Hyper-V to Single Open-E is possible as well, BUT....
From the release notes:
“When using DSS V6 in windows 2008 cluster environment a failover event on DSS V6 will break i/o operation performed on the DSS V6 iSCSI target e.g. copying of files "
So it looks like Fully HA setup (everything x 2 ) is going to have some problems.
Apparently it's something that all storage vendors experience when dealing with Hyper-V.
I've seen guys running multiple ESX boxes off a single SAN box - failure !
SAN goes down , multiple ESX boxes loose access to the storage , 10s or 100s of VMs are down :-)