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Date:	Tue, 25 Aug 2009 14:42:10 +0100
From:	Alan Cox <>
To:	Ric Wheeler <>
Cc:	Pavel Machek <>, Theodore Tso <>,
	Florian Weimer <>,
	Goswin von Brederlow <>,
	Rob Landley <>,
	kernel list <>,
	Andrew Morton <>,,,,,
Subject: Re: [patch] ext2/3: document conditions when reliable operation is

On Tue, 25 Aug 2009 09:37:12 -0400
Ric Wheeler <> wrote:

> I really think that the expectation that all OS's (windows, mac, even your ipod) 
> all teach you not to hot unplug a device with any file system. Users have an 
> "eject" or "safe unload" in windows, your iPod tells you not to power off or 
> disconnect, etc.


> I don't object to making that general statement - "Don't hot unplug a device 
> with an active file system or actively used raw device" - but would object to 
> the overly general statement about ext3 not working on flash, RAID5 not working, 
> etc...

The overall general statement for all media and all OS's should be

"Do you have a backup, have you tested it recently"

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