In a message dated 06-05-15, Tom Walker said to Holger Granholm:   
      
   GM Tom,   
      
   TW> SSD's are really to new for any real answer but this is what most   
   TW> experts think:   
      
   TW> How long an SSD can store data without power depends on a number of   
   TW> factors including the number of write cycles that have been used,   
   TW> the type of flash memory used in the drive, the storage conditions   
   TW> and so on. A white paper produced by Dell in 2011 stated that it   
   TW> could be as little as three months to as much as 10 years.   
      
   The number of write cycles is also a parameter with USB sticks but I   
   think that that number is seldom achieved due to the normal use of 'em.   
      
   TW> PDF Link:   
      
   TW> http://www.dell.com/downloads/global/products/pvaul/en/Solid-State-Drive   
   TW> FAQ-us.pdf-   
      
   Thanks for the link, I'll take a look at it.   
      
   TW> Many SSD manufacturers will list data retention either as part of   
   TW> the specification or the warranty for their drives. The JEDEC Solid   
   TW> State Technology Association sets the industry standard at one year   
   TW> for consumer drives.   
      
   That is quite short for life-long archival purposes. Normal SCSI and IDE   
   HDD's can still fill that void.   
      
   73 de Sam, OH0NC   
      
   aka Holger   
      
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