From: Andreas Dilger <adilger@clusterfs.com>
To: John Bradford <john@grabjohn.com>
Cc: root@chaos.analogic.com, maxvaldez@yahoo.com, bulb@ucw.cz,
linux-kernel@vger.kernel.org
Subject: Re: Virtual WORM device
Date: Tue, 7 Jan 2003 11:53:57 -0700 [thread overview]
Message-ID: <20030107115357.V31555@schatzie.adilger.int> (raw)
In-Reply-To: <200301071841.h07If7QJ002323@darkstar.example.net>; from john@grabjohn.com on Tue, Jan 07, 2003 at 06:41:07PM +0000
On Jan 07, 2003 18:41 +0000, John Bradford wrote:
> > Somebody should then modify `rm` and the kernel unlink
> > to `mv' files to the dumpster directory on the
> > file-system, instead of really deleting them.
>
> Another possibility would be to create a meta-device that works like a
> cross between the loopback device, and WORM device, I.E. start at the
> begining, and allocate sectors sequentially. Whenever a sector would
> normally be overwritten, a new one is allocated instead. This way,
> you could always access the filesystem as it was at any mount in time.
This is commonly called a filesystem snapshot, and you can already do
it with LVM.
Cheers, Andreas
--
Andreas Dilger
http://sourceforge.net/projects/ext2resize/
http://www-mddsp.enel.ucalgary.ca/People/adilger/
next prev parent reply other threads:[~2003-01-07 18:46 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-01-07 3:58 Undelete files on ext3 ?? Max Valdez
2003-01-07 8:59 ` Marco d'Itri
2003-01-07 8:59 ` John Bradford
2003-01-07 9:29 ` Maciej Soltysiak
2003-01-07 9:45 ` Jan Hudec
2003-01-07 17:38 ` Max Valdez
2003-01-07 17:53 ` Andreas Dilger
2003-01-07 17:57 ` John Bradford
2003-01-07 18:56 ` Andreas Dilger
2003-01-07 18:17 ` Richard B. Johnson
2003-01-07 18:41 ` Virtual WORM device John Bradford
2003-01-07 18:53 ` Andreas Dilger [this message]
2003-01-07 18:54 ` John Bradford
2003-01-08 18:24 ` Vishal Verma
2003-01-07 18:45 ` Undelete files on ext3 ?? Jesse Pollard
2003-01-07 18:55 ` Andreas Dilger
2003-01-08 5:01 ` Gerhard Mack
2003-01-08 8:00 ` Jan Hudec
2003-01-08 10:57 ` John Bradford
2003-01-08 21:33 ` Valdis.Kletnieks
2003-01-08 21:47 ` John Bradford
2003-01-08 21:51 ` Randy.Dunlap
2003-01-08 22:06 ` Valdis.Kletnieks
2003-01-08 23:03 ` John Bradford
2003-01-08 23:14 ` John Bradford
2003-01-09 9:42 ` Helge Hafting
2003-01-07 20:58 ` Mike Waychison
2003-01-09 8:27 ` Michael Knigge
[not found] ` <Pine.LNX.3.95.1030107131613.3523A-100000@chaos.analogic.co m>
2003-01-07 23:51 ` Billy Rose
2003-01-07 11:30 ` John Bradford
2003-01-07 11:45 ` Matti Aarnio
2003-01-07 12:39 ` Alan Cox
2003-01-08 20:00 ` Michael Milligan
2003-01-07 9:16 ` David van Hoose
2003-01-07 19:31 ` oford
2003-01-08 11:57 ` Pavel Machek
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20030107115357.V31555@schatzie.adilger.int \
--to=adilger@clusterfs.com \
--cc=bulb@ucw.cz \
--cc=john@grabjohn.com \
--cc=linux-kernel@vger.kernel.org \
--cc=maxvaldez@yahoo.com \
--cc=root@chaos.analogic.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®