mongodb - How do I successfully switch to XFS filesystem without corrupting any data?

Question

My MongoDB has recently been using lots of CPU on IO Wait. I believe by switching to XFS filesystem it should stop these issues. How can I successfully do this without corrupting any of my current data? I am on Ubuntu 18.04. My disk is currently ext4.

question from:https://stackoverflow.com/questions/65848690/how-do-i-successfully-switch-to-xfs-filesystem-without-corrupting-any-data

Answer 1

How to switch mongodb from ext4 to xfs:

It is simple : Add SECONDARY member with xfs, after the member finish with the replication , you can switch to that member and remove the other with the ext4 fs.

if switching will solve the IO: Perhaps adding more RAM will help more