Re: Limited life of flash memory

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kenneth marken wrote:
> On Monday 01 December 2008 23:35:24 Sirio Negri wrote:
>   
>> Hi all! I found some days ago a few articles about the limited life of
>> flash memory, specially for usb pendrive. The problem seems to be the
>> limited times you can write on it. Does it exist also for rs-mmc?
>> I know that the limit is very high (around 10 million of times) and it's
>> not a big problem for a normal user. But if you install an OS on it,
>> like on my Nokia 770, I think that the use of the memory card is bigger
>> and, if there is that problem, its life is shorter.
>> Thanks all for any info on it.
>> Sirio Negri
>>     
>
> iirc, the math goes something like this:
>
> take the space of the card, divide by write speed, thats how long it will take 
> (in seconds) to do a write of the whole card.
>
> a 4GB card at 2MB pr second will take about half an hour to do a full write...
>
> now, if the card has a write limit of 10 million, that means it will take 
> about 5 million hours...
>
> thats about 580 years of continual writing...
>
>   

And when that happens, you can probably replace it with a larger one for
the same money. 

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