XPost: aus.computers   
   From: nospam@needed.invalid   
      
   On Fri, 11/28/2025 4:42 PM, Lawrence D’Oliveiro wrote:   
   > On Fri, 28 Nov 2025 12:40:36 -0500, Paul wrote:   
   >   
   >> NAND wears as you write it.   
   >   
   > It’s not even physical wear and tear. As I understand it, it has to do   
   > with accumulation of the wrong charges in the wrong places; if there   
   > was a way to reset those charges back to where they should go (with   
   > some additional circuitry in the right places, perhaps), the drive   
   > would be as good as new.   
   >   
      
   It can have an infinite life, via thermal annealing to correct   
   the defects. They've tested that in the lab, lift the silicon   
   to a certain temperature, and the cells are writable again   
   (for their 600 cycles).   
      
   The problem with the lab discovery, is incorporating a heater   
   to apply the annealing.   
      
   But it would also not be "good for business", if NAND lasted   
   forever, so you can see why they would be less than   
   enthusiastic about the prospect.   
      
   It would be easier to just go back to SLC :-) That would fix it.   
      
      Paul   
      
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