linux-kernel - Re: [PATCH] LogFS take three

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Message-ID: <20070517201847.GA5032@ucw.cz>
Date:	Thu, 17 May 2007 20:18:47 +0000
From:	Pavel Machek <pavel@....cz>
To:	Dongjun Shin <djshin90@...il.com>
Cc:	David Woodhouse <dwmw2@...radead.org>,
	Jörn Engel <joern@...ybastard.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-mtd@...ts.infradead.org, Albert Cahalan <acahalan@...il.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Jan Engelhardt <jengelh@...ux01.gwdg.de>,
	Evgeniy Polyakov <johnpol@....mipt.ru>,
	Pekka Enberg <penberg@...helsinki.fi>,
	Greg KH <greg@...ah.com>, Ingo Oeser <ioe-lkml@...eria.de>
Subject: Re: [PATCH] LogFS take three

Hi!

> >Yes. These things are almost always implemented _very_ 
> >badly by the same
> >kind of crack-smoking hobo they drag in off the streets 
> >to write BIOSen.
> >
> >It's bog-roll technology; if you fancy a laugh try 
> >doing some real
> >reliability tests on them time some. Powerfail testing 
> >is a good one.
> >
> >This kind of thing is OK for disposable storage such as 
> >in digital
> >cameras, where it doesn't matter that it's no more 
> >reliable than a
> >floppy disc, but for real long-term storage it's really 
> >a bad idea.
> >
> 
> There are so many flash-based storage and some 
> disposable storages,
> as you pointed out, have poor quality. I think it's 
> mainly because these
> are not designed for good quality, but for lowering the 
> price.
> 
> These kind of devices are not ready for things like 
> power failure because
> their use case is far from that. For example, removing 
> flash card
> while taking pictures using digital camera is not a 
> common use case.
> (there should be a written notice that this kind of 
> action is against
> the warranty)

Hmm.. so operating your camera on batteries should be against the
warranty, since batteries commonly run empty while storing pictures?


							Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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