What do you want in your stack?
From Linux Raid Wiki
Revision as of 00:20, 10 November 2017 by Anthony Youngman (Talk | contribs)
Because Linux is modular, a lot of functionality is duplicated by various components. For example, modern filesystems try and be all things to all men, while other components such as Device Manager and md-raid are more single-function components.
Which component provides what | |||
---|---|---|---|
Component | Combine Devices | Redundancy | Snapshots |
Raid | Yes | Yes | No |
LVM | Yes | No | Yes |
Btrfs | Yes | Yes | Yes |
Looking at the table, and seeing that btrfs provides all three capabilities, you might wonder why you want to bother with raid and lvm - why not just use btrfs, or another modern filesystem.