Configuration of ELK using iscsi LUNs instead of NFS

We have a running ELK setup on NFS storage (3 ELS share the same NFS mount) and due to space crunch we need to migrate to iscsi mounts (LUN with unique initiator name), that will be specific to ELS server(s)

Also, we will be migrating from 5.6 to 7.6 in this process, does anyone have any experience with configuration of Elasticsearch using iscsi ?

Current setup has NFS volume shared across 3 ELS servers /elastic/0/nodes/xxxxx