I've got two ESXi servers running 4.0 and a vSphere server (4.0) managing them. These two ESXi hosts can see a LUN on a NetApp FAS2020 and they see it as the same device (if i change the name on one host, its automatically changed on the other host). I additionally have a larger NFS volume that I use for my VMDK files, and this is on both ESXi hosts. All of my hosts use the NFS datastore for their primary disks, and several use it for a secondary disk.
I have a specific host that needs to use an iSCSI LUN from the NetApp for its secondary disk. I added it as a Raw Device Mapping (tried both physical and virtual), but when I go through the setup it requires that I store a LUN Mapping file on a datastore. Unfortunately the only datastore it provides as an option is the LOCAL DISK of the ESXi host. As soon as you boot the system up and try to migrate it, it fails because the second vServer cannot reach the mapping file that is located on the first vServer.
What am I doing wrong here ... why can't I store the RDM Map file with the rest of this virtual hosts VMDK and SWAP files?
