EXT4 And Storagenode Free Space & Optimization

[JWvdV]

On tuning ext4 for storage nodes

The ext4 file system is usually the default file system on Linux, as well as many NAS devices. It has several knobs that can be used to adapt the file system for some specific use cases. I’ve been doing some experiments lately on how to tune them for storage nodes, and found that there are some nice gains to get from the right kind of tuning. An inode is a place on a file system that stores information on files or directories, such as the file name, modification date, access permissions and so …

I’m reserving about 7%, maximum 100GB on every node.

But really: these are really minor optimizations. Not making you winning the race.