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From: Paul Jakma <paul@clubi.ie>
To: Andi Kleen <ak@suse.de>
Cc: Linux LVM list <linux-lvm@msede.com>
Subject: Re: [linux-lvm] LVM 0.8final for 2.2.15/2.2.16?
Date: Wed, 7 Jun 2000 01:09:26 +0100 (IST)	[thread overview]
Message-ID: <Pine.LNX.4.21.0006070108470.26807-100000@fogarty.jakma.org> (raw)
In-Reply-To: <20000607004618.A13524@gruyere.muc.suse.de>

incidentally, snapshots /seem/ to work fine here on live fs's with
2.4.0-test1-ac7.

On Wed, 7 Jun 2000, Andi Kleen wrote:

> On Tue, Jun 06, 2000 at 11:30:48PM +0100, Paul Jakma wrote:
> > > This means you effectively can only take
> > > snapshots from unmounted file systems.
> > > 
> > 
> > eh? but a snapshot is not ever meant to be used directly as an
> > alternate filesystem, so there's no point running fsck on it.. ??
> 
> You cannot safely access a unclean file system without replaying the log
> (when it is journaled) or running fsck (when it is not journaled). The
> file system meta data may not be consistent: files may contain bogus
> blocks, directories may point to nowhere, inodes may be outdated etc.
> In short, without write access you cannot safely read it, except
> when it was cleanly unmounted
> 
> 
> -Andi
> 
> 

-- 
Paul Jakma	paul@clubi.ie
PGP5 key: http://www.clubi.ie/jakma/publickey.txt
-------------------------------------------
Fortune:
The trouble with the rat-race is that even if you win, you're still a rat.
		-- Lily Tomlin

  parent reply	other threads:[~2000-06-07  0:09 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2000-06-06  9:51 Paul Jakma
2000-06-06 14:42 ` Andi Kleen
2000-06-06 22:30   ` Paul Jakma
2000-06-06 22:46     ` Andi Kleen
2000-06-07  0:03       ` Paul Jakma
2000-06-07  0:09       ` Paul Jakma [this message]
2000-06-12 13:20   ` Paul Jakma
2000-06-12 19:53     ` Jay Weber
     [not found] <20000607100145.A6300@gondor.com>
2000-06-07 23:18 ` Paul Jakma
2020-11-27 16:17   ` Michael Marxmeier
2000-06-08  0:47     ` Paul Jakma
2000-06-08  8:23       ` Jos Visser
2000-06-08  8:34         ` Andi Kleen
2000-06-08 11:49           ` Paul Jakma
2000-06-08 12:34             ` Jos Visser
2000-06-09  6:59               ` Heinz J. Mauelshagen
2000-06-08  7:52     ` Heinz J. Mauelshagen

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