Contents
Should I use Logical volume Management?
LVM can be extremely helpful in dynamic environments, when disks and partitions are often moved or resized. However, in a static environment where partitions and disks are never changed, there is no reason to configure LVM unless you need to create snapshots.
Will Btrfs ever be stable?
While it is true that Btrfs is still considered experimental and is growing in stability, the time when Btrfs will become the default filesystem for Linux systems is getting closer. Some Linux distributions have already begun to switch to it with their current releases.
What’s the difference between logical volume and Btrfs?
With LVM, a logical volume is a separate block device, while a Btrfs subvolume is not and it cannot be treated or used that way. Making dd or LVM snapshots of btrfs leads to dataloss if either the original or the copy is mounted while both are on the same computer.
How does Btrfs generate binary diff between subvolumes?
Given any pair of subvolumes (or snapshots), Btrfs can generate a binary diff between them (by using the btrfs send command) that can be replayed later (by using btrfs receive ), possibly on a different Btrfs file system.
What’s the difference between Btrfs and butter fuss?
Btrfs (pronounced as “butter fuss”, “better F S”, “butter F S”, “b-tree F S”, or simply by spelling it out) is a computer storage format that combines a file system based on the copy-on-write (COW) principle with a logical volume manager (not to be confused with Linux’s LVM), developed together.
How is a Btrfs snapshot treated as an alternate file system?
A Btrfs snapshot is a subvolume that shares its data (and metadata) with some other subvolume, using Btrfs’ copy-on-write capabilities, and modifications to a snapshot are not visible in the original subvolume. Once a writable snapshot is made, it can be treated as an alternate version of the original file system.