Hi,
We have a VMware 4.0 U2 environment with 4 ESX hosts. We have 2 clusters with 2 hosts located in each cluster. Each cluster defines a physical building and both buildings are about 4KMs appart. Each building also has its own IBM DS3400 SAN. Until today, we were not able to do a Vmotion between clusters while the VM was running, because the hosts from Cluster A couldn't see the shared storage in Cluster B, and vice versa.
This morning, we plugged a Mono fiber so hosts from Cluster A are now able to see storage from Cluster B, and vice versa. All this works. I am able to do a storage Vmotion (using Change Datastore function) from Cluster A to Cluster B while the VM is running. I am also able to change host and select a host in a different Cluster. I can do both functions one after the other and make sure that the storage where the VM is located is in the same cluster/building that the host is running the VM. I want to avoid a host in Cluster B running a VM located on the shared storage of Cluster A, so if I could find a way to do all in 1 step, that would be best.
The function Change both host and datastore is greyed out. I would like to use that function to select the appropriate host in the other cluster as well as the appropriate datastore at the same time and avoid having to change host and then change datastore.
Of course, Vmotion is running fine and all hosts can see shared storage of all clusters. I don't understand why Change both host and datastore is still greyed out. We have a Nexus 1000v in place, if this makes a difference. All the VLANs are the same within both clusters. A VM will be able to Vmotion in another cluster with network reconfiguration.
Any clues ?
Thank you!
Guillaume.
