Migrating single file server to failover cluster file server

Hi,

Currently we have one file server which is our Domain controller also. File Server data stored in SAN storage lun. Users home folders also resides at file server.Now we want to create 2 node failover cluster file server.

Questions:

1)Can we assign same storage lun to failover cluster?

2)Do we need to assign all permissions and storage quota again?

What is the best option to achieve this goal.