Need to connect 2 HP MSA 2040 SAN remote storage systems?

Question

fiber channel

There are 2 server racks located in two different buildings interconnected by a multimode optical cable. (Scheme below)
Each rack has a storage system and each server has access to two storage systems at once via FibreChanel.
The problem is that one rack moves and connections between storage systems via FC are impossible according to the scheme shown below.

How to interconnect two storage systems so that further 2 servers see 2 storage systems at once? There are several channels of 1 gigabit per vlan at the disposal.
What is the best connection option?