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From: Valdis.Kletnieks@vt.edu
To: "Amir G." <amir73il@users.sourceforge.net>
Cc: Lukas Czerner <lczerner@redhat.com>,
	Yongqiang Yang <xiaoqiangnk@gmail.com>,
	linux-ext4@vger.kernel.org, tytso@mit.edu,
	linux-kernel@vger.kernel.org, sandeen@redhat.com
Subject: Re: [PATCH v1 00/30] Ext4 snapshots
Date: Fri, 10 Jun 2011 18:51:28 -0400	[thread overview]
Message-ID: <52699.1307746288@turing-police.cc.vt.edu> (raw)
In-Reply-To: Your message of "Thu, 09 Jun 2011 13:54:13 +0300." <BANLkTin0RKZbDmB1movombH9o4HDpTnvFw@mail.gmail.com>

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On Thu, 09 Jun 2011 13:54:13 +0300, "Amir G." said:

> Why do you keep saying 'backup only'?
> There is a huge difference between having long lived snapshots,
> like CTERA products have, and temporary snapshot for backup
> purpose (for which LVM is adequate).

I must have blinked somewhere - I'm not convinced LVM is even "adequate" for
backup purposes.  In particular, how does an LVM-level snapshot deal with the
"metadata in memory" problem (basically the exact same problem as running fsck
on a disk partition that is already mounted)?


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  parent reply	other threads:[~2011-06-10 22:52 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <1307459283-22130-1-git-send-email-amir73il@users.sourceforge.net>
2011-06-07 15:56 ` Lukas Czerner
2011-06-07 16:31   ` Amir G.
2011-06-08 10:09     ` Lukas Czerner
2011-06-08 14:04       ` Amir G.
2011-06-08 14:41         ` Eric Sandeen
2011-06-08 15:01           ` Amir G.
2011-06-08 15:22             ` Eric Sandeen
2011-06-08 15:33               ` Amir G.
2011-06-08 15:38         ` Lukas Czerner
2011-06-08 15:59           ` Amir G.
2011-06-08 16:19             ` Mike Snitzer
2011-06-09  1:59           ` Yongqiang Yang
2011-06-09  3:18             ` Amir G.
2011-06-09  3:51               ` Yongqiang Yang
2011-06-09  6:50                 ` Lukas Czerner
2011-06-09  7:57                   ` Amir G.
2011-06-09  8:13                     ` david
2011-06-09 10:06                       ` Amir G.
2011-06-09 10:17                         ` Lukas Czerner
2011-06-09  8:46                     ` Lukas Czerner
2011-06-09 10:54                       ` Amir G.
2011-06-09 12:59                         ` Lukas Czerner
2011-06-10  7:06                           ` Amir G.
2011-06-10  9:00                             ` Lukas Czerner
2011-06-10 12:02                               ` Amir G.
2011-06-10 22:51                         ` Valdis.Kletnieks [this message]
2011-06-11  1:09                           ` Amir G.

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