Think twice. You have a backup, do you? You can recover from backup?
Then think about your data. You have an enterprise data system to pull data from, where data is maintained. You can always rebuild the Elasticsearch index from that source which is physically separated from the ES cluster. If not, you do backups.
Then think about ES server redundancy. You use replica. If you use replica, then you have at least one whole server in redundancy mode.
Then think about the disks. RAID 5/6 can recover in the background, with spare disks and so on. This kills the performance of the server but in ES cluster mode, it kills the whole cluster. I repeat: the whole cluster performance will bog down when RAID5/6 is recovering. You will need to take the system offline. Just because of a single broken disk in a redundant server!
Here is my suggestion. Use RAID 0 on your copy of enterprise data with replica level 1 or higher. Sleep quiet. Let a whole server go down if a disk fails, it does not matter. Test your replica levels. Decommission a broken server, repair the disk, and bring ES back after repair. See the difference?