Subject: Re: fsck still happens with softdeps?
To: None <firstname.lastname@example.org>
From: Juergen Hannken-Illjes <email@example.com>
Date: 12/22/2004 16:32:17
On Wed, Dec 22, 2004 at 10:24:07AM -0500, Thor Lancelot Simon wrote:
> On Wed, Dec 22, 2004 at 01:17:17PM +0100, Juan RP wrote:
> > On Wed, 22 Dec 2004 09:57:33 +0100
> > Peter Bex <Peter.Bex@student.kun.nl> wrote:
> > > Hi all,
> > >
> > > I just read McKusick's softdeps paper and if I understood it correctly,
> > > fscks aren't necessary anymore except for the occasional background fsck
> > > to reclaim lost inodes.
> > >
> > Background fsck hasn't been implemented on NetBSD, this could be implemented
> > now we have fss(4) with read/write support... any volunteer? :-)
> fss(4) really doesn't have anything to do with it.
File system snapshots are indeed needed.
Background fsck takes a snapshot, mounts rw, runs fsck on the snapshot
and adjusts the mounted file system (block counts etc).
If I remember right at least Charles Hannum disagreed on background fsck.
Juergen Hannken-Illjes - firstname.lastname@example.org - TU Braunschweig (Germany)