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Morning Tech Bits

6. Re: Morning Tech Bits Jul 3, 2009, 20:30 rkone
As a sector goes bad by a life expectancy count (they all will over time) the drive opens a back up sector to replace it, and writes the data to it and the back up sector becomes the new one that is used instead of the bad one. The bad one is done, it's not used anymore. As this happens over time (year or two) your drive uses up good sectors and marks them bad.

With 500,000 writes per block and proper wear leveling logic, it's unlikely you're going to see a lot of bad sectors within the first 2 years even on a heavily used drive.

Operational speeds dramatically decrease once you have millage on the drive. Most tests are done with clean slate SSDs and that leads to peak performance numbers, but not real world long term numbers.

The difference is not that dramatic, and new firmwares are getting better, making this difference even smaller. With Windows 7, things will improve considerably.
However, good SSDs are dramatically faster than any standard hard drive (even when the SSD is "used")...
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    Date Subject Author
  1. Jul 3, 12:02 Re: Morning Tech Bits Z9000
  2. Jul 3, 15:24  Re: Morning Tech Bits Prez
  3. Jul 3, 15:40   Re: Morning Tech Bits space captain
  4. Jul 3, 15:41  Re: Morning Tech Bits DG
  5. Jul 3, 20:16   Re: Morning Tech Bits rkone
>> 6. Jul 3, 20:30    Re: Morning Tech Bits rkone
  7. Jul 3, 23:05     Re: Morning Tech Bits Narf2029
  9. Jul 4, 12:35     Re: Morning Tech Bits Z9000
  8. Jul 4, 00:55 Re: Morning Tech Bits Retired


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