File system question for sas shared storage

Okay I have read that you should not mount 2 servers to the same drive with standard fs like ext3 or ext4 because it will corrupt the data. Is this the same for a sas array such as md3200?

If you are supposed to use cluster fs like glusterfs then how do you configure? Everything I am finding is based on ip setup such as replicating 2 different drives on 2 different machines. I am trying to use part of the md3200 sas for backup and iso storage.

I am way confused on this, any help much appreciated!

Thanks,