From mboxrd@z Thu Jan  1 00:00:00 1970
From: amagai@osrg.net
Subject: Re: [RFC] Log-structured File System for Linux that Supports Snapshots
Date: Tue, 30 Aug 2005 15:55:07 +0900 (JST)
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To: ppadala@eecs.umich.edu
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Hello Pradeep,

> For past two months, I have been working on developing a
> log-structured file system (LFS) that supports snapshots as a part o

We are also developing an LFS for Linux 2.6, named Nilfs (a new
implementation of a log-structured file system).  We implemented Nilfs
using modern technology, for example, file and inode blocks are
managed by B-trees, internal data is processed in 64 bit wide word
size.  The Nilfs also supports snapshots.  The snapshots are
automatically hold without any explicit requests, the can be mounted
as a read-only file system. 

However, cleaner functions are under development.

The Nilfs will be available soon as open source software under GPL.
Could you cooperate with us on Linux LFSes!

Thank you!

AMAGAI Yoshiji
Nippon Telegraph and Telephone Corporation
NTT Cyber Space Laboratories
Open Source Software Computing Project
Kernel Team

nilfs@osrg.net