I have a Windows 2012 Storage Server with multiple iSCSI targets defined. I have three other servers, each connecting to one target. One of the server is a Hyper V 2012 R2 Core Server.
The Hyper-V Server has its VMs on the iSCSI Drive. The problem is, I reinstalled the Hyper V operating system today due to a disk failure, and the new installation is unable to connect to the iSCSI Drive. Each time I try to Discover the iSCSI Targets I receive a Connection Failed error. I receive the same when I try to enter the SNS server address.
There is obviously no problem with the Storage server as it worked before, and still works for the other two servers. So I expect the problem to be on the Hyper-V server.
I have set the iSCSI service to Automatic, and confirmed it is running. I have enabled iSCSI in the Windows Firewall.
I can ping in both directions, using DNS name and IP address, so the network addressing is okay. I do not remember having to do anything other than that the first time I set it up to get iSCSI running.
I have confirmed the settings of the target to confirm the initiator settings are correct based on iqn and IP address.
I have also, just on the off chance, restarted both server.
So now I am at a loss. I am hoping someone can tell me what step or setting I have missed.