From owner-freebsd-arch Thu Jan 25 18: 7:18 2001 Delivered-To: freebsd-arch@freebsd.org Received: from mail.rpi.edu (mail.rpi.edu [128.113.100.7]) by hub.freebsd.org (Postfix) with ESMTP id 4E85237B400 for ; Thu, 25 Jan 2001 18:07:00 -0800 (PST) Received: from [128.113.24.47] (gilead.acs.rpi.edu [128.113.24.47]) by mail.rpi.edu (8.9.3/8.9.3) with ESMTP id VAA111040; Thu, 25 Jan 2001 21:06:57 -0500 Mime-Version: 1.0 X-Sender: drosih@mail.rpi.edu Message-Id: In-Reply-To: <39CD0C1B.324AA1C5@geocities.com> References: <200007060342.UAA23667@beastie.mckusick.com> <39CD0C1B.324AA1C5@geocities.com> Date: Thu, 25 Jan 2001 21:06:55 -0500 To: arch@FreeBSD.ORG From: Garance A Drosihn Subject: Re: Snapshots in the Fast Filesystem Cc: Kirk McKusick Content-Type: text/plain; charset="us-ascii" ; format="flowed" Sender: owner-freebsd-arch@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Sept 23/2000, Barry Pederson wrote: >On July 05/2000, Kirk McKusick wrote: > > >> I have completed an initial implementation of snapshots for the >> fast filesystem (UFS/FFS). I have put up a tarball on >> >> http://people.freebsd.org/~mckusick/snap.tgz >> >> I am looking for comments and feedback on these changes. I am >> proposing to put them into 5.0-current on Tuesday July 11th >> unless I get feedback indicating that folks are not happy > > with this addition. > > .................... > > So, as you can see, this is definitely alpha-quality code. >> Much remains to be done to make it really useful in >> production systems. But, I wanted to let folks get a chance >> to try it out and start reporting bugs. > > >I've been fooling with this in 5.0-CURRENT, and have have found >it to be a terribly, terribly cool feature. > [...skipping...] > >Lastly, I'm curious if it's possible that snapshots will be MFC'd >into 4.x at some point? or will this be a 5.0 and up only feature? I thought I would stir the waters again and ask how this new feature seems to be working out in -current. Is there much chance of it working with the 4.x-branch of releases? I realize there's a lot of work here, and that it may very well need to be tied into some of the smp-related work in 5.0 (wrt big-locks, etc), so I won't mind if it can't make it any sooner. Mainly I just wanted to reiterate that this sounds like a very cool feature (particularly given how huge disks are getting, a snapshot facility seems like a good use of that spare space), and that I'm looking forward to it whenever it does appear. -- Garance Alistair Drosehn = gad@eclipse.acs.rpi.edu Senior Systems Programmer or gad@freebsd.org Rensselaer Polytechnic Institute or drosih@rpi.edu To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message