Le depuis longtemps attendu ext4 était jusqu'à maintenant nommé "ext4dev" dans le noyau. Maintenant ça sera "ext4" (2.6.28).
Que dire de ext4 ? Ben qu'il est plus mieux bien qu'ext3.
Et après ext4 ? ext5 ?
Il semble que non. Ça sera btrfs probablement.
L'excellentissime Theodore Ts'o donne son avis :
As far as btrfs is concerned, one of the things that you may not know
is that about a year ago (on November 12-13, 2007), a small group key
filesystem developers, that included engineers employed by HP, Oracle,
IBM, Intel, HP, and Red Hat, and whose experience included working
with a large number of filesystems: ext2, ext4, ext4, ocfs2, lustre,
btrfs, advfs, reiserfs, and xfs came together for a two day "next
generation filesystem" (NGFS) workshop. At the end of the that
workshop, there was unaminous agreement (including from yours truly)
that (a) Linux needed a next generation filesystem to be competitive,
(b) Chris Mason's btrfs (with some changes/enhancements discussed
during the workshop) was the best long-term solution for NGFS, and (c)
because creating a new enterprise filesystem always takes longer than
people expect, and even then, it takes a while for enterprise users to
trust a new filesystem for their most critical data, ext4 in the next
generation of filesystems was needed as the bridge to the NGFS.
Given btrfs's current status, in terms of its functionality, even its
format is not fully cast into stone yet, and given Chris's reputation
and skills as a kernel devleoper, my personal opinion is that we would
not be making a "special case exception" for btrfs to get it into
mainline, but rather something which makes completely good sense.
Quand beaucoup d'expert de systèmes de fichier sont d'accord...
C'est un développeur, et non des moindres, d'ext qui le dit.
Vu ici : http://www.heise-online.co.uk/news/Kernel-Log-Ext4-completes(...)
et ici : http://www.osnews.com/story/20409/Ext4_Completes_Development(...)