NILFS: A File System to Make SSDs Scream
Jun 03, 2009, 20:01 (0 Talkback[s])
(Other stories by Jeffrey B. Layton)
[ Thanks to An Anonymous Reader for
this link. ]
"It's difficult to write storage articles at this time
and not focus on the upcoming 2.6.30 kernel. Why? This kernel is
loaded with a number of new file systems -- some of which we've
already covered, like ext4 and btrfs. Another of the hot new file
systems that is in 2.6.30 is NILFS. This file system is definitely
one that you should be testing.
"NILFS2 (New Implementation of a Log-Structured File System
Version 2) is a very promising new log-structured file system that
has continuous snapshots and versioning of the entire file system.
This means that you can recover files that were deleted or
unintentionally modified as well as perform backups at any time
from a snapshot without a performance penalty normally associated
with creating snapshots. In addition, there is evidence that NILFS
has extremely good performance on SSD drives."
Complete
Story
Related Stories:
- Filesystems: Data Preservation, fsync, and Benchmarks Pt. 2(Jun 02, 2009)
- Churning Butter(FS): An Interview with Chris Mason(May 14, 2009)
- Kernel Log: What's coming in 2.6.30 - File systems: New and revamped file systems(Apr 28, 2009)
- Linux Storage and Filesystem workshop, day 1(Apr 24, 2009)
- Btrfs, Squashfs, and Tuz, oh my!(Mar 26, 2009)
- Files and Attributes: chattr(Mar 24, 2009)
- ext4 vs fsync, my take(Mar 17, 2009)
