Ubuntu 10.10’s New File System: btrfs
Between ext3, ext4, reiserfs and others, Ubuntu has no shortage of file systems to choose from when installing a new system. And those options are set to become yet more numerous in Ubuntu 10.10, which will introduce support for btrfs. Wondering what this new file system is all about and why it might matter to you?
Introduced last year, btrfs is a new file system intended to address the shortcomings in ext4, which is currently the default choice for Ubuntu and most other Linux distributions. While ext4 is pretty robust and efficient, it lacks some advanced features, such as support for snapshots and advanced scalability, that are particularly important in the enterprise environment.
As ext4 developer Ted Ts’o has stated, the file system that currently predominates in modern Linux distributions was never intended to be a longterm solution. It was created only as a temporary means of addressing the problems with its predecessor, ext3, until something like btrfs could be brought to maturity.
The ultimate aspiration of the developers behind btrfs is to bring the power of Sun’s venerable ZFS file system to Linux.
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