[maemo-users] Limited life of flash memory

From: Mark wolfmane at gmail.com
Date: Wed Dec 3 23:13:32 EET 2008
On Wed, Dec 3, 2008 at 11:17 AM, Brian Waite <linwoes at gmail.com> wrote:
> On Wednesday 03 December 2008 12:26:29 Mark wrote:
>> ...by which you're admitting that no wear levelling algorithm is perfect...
> I agree with that. Also no spinning media is perfect either
> From my experience, (only about 10 yrs, not an eternity) flash drives have a
> higher life expectency than any spinning media I have used. I have had far
> more hard drives die than FLASH devices.  I have seen numbers to argue FLASH
> life expectancy to be an order of magnitude better than spinning media.
> I am not taking into account dropping my thumbdrive every other day and
> slamming books on SD cards.
> If I were to put a Flash drive beside a hard drive and do that same activity
> to them (say a typical user type load of reads/writes). I expect that the hard
> drive would die statistically more often.
>> Let's go back to the original question: how reliable are flash memory
>> cards when used for booting an OS?
>> Answer: Probably "reliable enough", provided something else doesn't go
>> wrong. Flash cards *do* sometimes fail, for varying reasons, and
>> repeated writes aren't the only issue.
> I would answer: More reliable than your PC harddrive. We trust our OSes on
> those why not on FLASH.
> Thanks
> Brian

The luck I've had with hard drives in the last few years has made me
*very* distrustful of them. I 'trust" them with my OSes because I have
no choice, but I make sure I have all my data backed up to other


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