The server generated these startup warnings when booting
Using the XFS filesystem is strongly recommended with the WiredTiger storage engine. See Production Notes for Self-Managed Deployments - Database Manual - MongoDB Docs
This happens on arbiter.
Arbiters do not store data. In my understanding there is no storage engine on arbiter.
This is why we run arbiters, to safe instances and run it along on some other (minimal cloud) instances, old machines, zookeepers, load balancers not optimized for mongodb.
Arbiters are for election only, there is no need to optimize them for mongodb data.
Could we turn off these warnings on arbiters?