I have two Linux servers which have connection to the same disk device, on a fiber channel connection (I didn't configure that, it was already there). I can see on both servers the disk showing up as /dev/mapper/something.
I want to use half of it on one server and the other half on the other server, but I cannot modify anything on the storage. Can I make two partitions and mount the first on one server and the other on another server?
Unfortunately the servers also don't see each other so NFS is also not an option.