Re: New SSD options for IBM Power Systems provide enhancedperformanceat a lower cost -- MIDRANGE-L

Subject: Re: New SSD options for IBM Power Systems provide enhancedperformanceat a lower cost
From: Charles Wilt <charles.wilt@xxxxxxxxx>
Date: Wed, 20 Apr 2016 10:27:25 -0400
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On Wed, Apr 20, 2016 at 9:49 AM, Steinmetz, Paul <PSteinmetz@xxxxxxxxxx>
wrote:

I'm still puzzled and confused on how a SSD can "wear out" when no moving
parts.
Or is this another "marketing strategy".

Not marketing, physics

...

Each cell can only be erased a limited number of times.

"SLC memory cells can survive approximately 100,000 erase / program cycles
before the tunnel oxide begins to wear out. MLC memory cells have a shorter
lifetime of approximately 10,000 erase / program cycles. Erasure and
programming subjects the tunnel oxide to stress from large electric fields.
The tunnel oxide insulation between the silicon substrate and the floating
gate is very thin, less than 10 nm."

https://web.archive.org/web/20101214113703/http://www.imation.com/PageFiles/83/SSD-Reliability-Lifetime-White-Paper.pdf

Charles

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