We have an IBM DS3512 SAN device connected via SAS to (2) IBM x3550 M3 servers. The x3550 servers are running Server 2008 R2 DataCenter edition in Server Core mode. We are going to use these as Hyper-V hosts, with the VM guests residing on the shared SAN. I am able to see the SAN from both servers, by remotely connecting into Server Manager. I can drill down into Storage Manager for SANs and using LUN Management - I am able to see the LUN, as well as assign the volume a drive letter in Disk Management. The (2) IBM x3550 hosts are NOT clustered.
I want to be able to mirror this information on both hosts, so either x3550 Hyper-V host can manage the VM guest on the SAN. Right now, if I assign the SAN volume a drive letter and create files/folders, they are not visible to the other host. Each host is managing the LUN separately.
How can I make it so both hosts see the same volume?