Archived posting to the Leica Users Group, 2009/03/27

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Subject: [Leica] Flash lifespan
From: scheng at aotera.org (Spencer Cheng)
Date: Fri, 27 Mar 2009 14:27:11 -0400
References: <116423.35549.qm@web55908.mail.re3.yahoo.com> <7ac27f4f0903271104w3aff50cex3d128c7c0ca6d878@mail.gmail.com>
 
Number of read or write cycles that can be tolerated is orthogonal to  
the archival properties of flash memory :)

Suitability for archival storage is inversely proportional to the rate  
at which the charge is leaked from the all memory cells on a given  
memory card. This leakage rate is not a crucial bit of data that the  
manufacturers publish to my knowledge. So one may get lucky, or, NOT.

Regards,
Spencer

On Mar 27, 2009, at 14:04, Richard Man wrote:

> "Typical" flash technology has ~10,000 to 100,000 read/write cycles,
> depending on the manufacturer. The hardware controller is smart  
> enough to
> "spread out" the bits as not to unduly bang on just a few cells. Other
> things will stop working before then. They do make great archival  
> storage
> units.
In reply to: Message from h_arche at yahoo.com (H. Ball Arche) ([Leica] Flash lifespan)
Message from richard.lists at gmail.com (Richard Man) ([Leica] Flash lifespan)