avidamoeba , 9 hours ago (edited 7 hours ago)

Ext4 and ZFS.

• Ext4 for system disks because it’s default in OS installers and it works well. I typically use it on top of LVMRAID (LVM-managed mdraid) for redundancy and expansion flexibility.
• ZFS for storage because it’s got data integrity verification, trivial setup, flexible redundancy topologies, free snapshots, blazing fast replication, easy expansion, incredible flexibility in separating data and performance tuning within the same filesystem. I’d be looking into setting up ZFS on root for my next machine. Among other things that would enable trivial and blazing fast backup of the system while it’s running - as simple as syncoid -r rpool backup-server:machine4-rpool.