On 25/08/2015 17:07, Jan Schermer wrote:
There's a nice whitepaper about under-provisioning
everyone using SSDs should read it

http://www.sandisk.com/assets/docs/WP004_OverProvisioning_WhyHow_FINAL.pdf

True. That is by far one of the best paper on this topic. The example given in chapter 5 is much interesting. But I haven't been able to calculate identical things for some SSD's. In addition, Toshiba seems to claim different values of improvement in his paper:
http://storage.toshiba.com/docs/services-support-documents/ssd_application_note.pdf

Best,
--
Olivier

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