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SSD - leaving 10-15gb? Why?

Discussion in 'Storage' started by copenhagen69, Sep 6, 2010.

  1. copenhagen69

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    I have tried to google, but I must be missing a key term as I have found nothing on this.

    Why do people say you need to leave 10-15gb on an SSD to make it work right?
     
  2. Nosada

    Nosada

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    IIRC this was to avoid performance degradation in the pre-TRIM era. Now it's no longer required.
     
  3. copenhagen69

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    hmmm so as long as you get something that supports TRIM you are fine now?
     
  4. TIGR

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    It is "safe," but write performance can suffer as an SSD gets full. Read performance should be unaffected. The wear leveling firmware simply slows down write speeds as it has less free space to write to. So if you are going to be doing a lot of writing and erasing, performance will be better if you keep an SSD under 80% full. If you're using it more for data that gets written once and read often, you won't see as much performance degradation.
     

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