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What to expect from Btrfs on openSUSE 13.2?

November 12th, 2014 by

As the first major Linux distribution to have Btrfs as the default file system, what can users and developers expect from openSUSE 13.2?

How is the systems capabilities enhanced?

Btrfs has different performance characteristics; it’s a logging-style file system that provides fault tolerance, repair, and easy management features.

The most well known advantage of Btrfs is the rollback capability with the open-source tool Snapper.

“Btrfs is mature,” said George Shi, who helped rollbacks become a reality for openSUSE users. “It works with Snapper to implement snapshot and rollback, the killer function of Btrfs. You can pick any date you saved to rollback your full system.”

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Using BTRFS on openSUSE 12.1

January 23rd, 2012 by

This article is contributed by Kamila Součkova

Introduction

As the btrfs wiki says: “Btrfs is a new copy on write filesystem for Linux aimed at implementing advanced features while focusing on fault tolerance, repair and easy administration.” Although under heavy development, it has become stable enough for personal use, and there are plenty of reasons to try it. What distinguishes it from earlier filesystems is that it has been designed with scalability and robustness in mind: it can handle huge files (up to 16EiB — a lot!), it can pack lots of files and directories efficiently, has built-in error detection methods (checksums of data and metadata), support for transparent compression, integrated multiple devices support (RAID-0, RAID-1 and RAID-10 so far) and more — see here for a more complete list.

In this how-to I will focus on one particularly neat feature: snapshots. Btrfs allows you to make read-only or writable snapshots of the state of your filesystem without wasting space with redundant data. Together with YaST’s Snapper module, this makes tracking FS changes and undoing undesired modifications a breeze.

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