0 and 1. The things that make me say that are relatively well wrapped up in a series of articles anand has written from 2008 to today. There is more that I've read and my personal experience but if you read these articles you'll have a big chunk of it. I know it's a lot to read but it covers all the ground from the designs, how they work, how reliable they really are, pricing, bugs, you name it.
The MTBF is not so much a wear leveling issue. It is whether or not the SSD will break and stop working. My understanding is that even worn out 100%, and SSD will still read data, so that even worn out, the data is not lost.
The question is, how often do they break, if so how do they break, and when they do break how retrievable is the data. Do any of the articles you list address this with respect to Intel, or to any other SSD?
Did you read the quotes in http://www.silentpcreview.com/forums/vi ... hp?t=57904
or do you remember them from reading the articles?
I don't think anyone outside of Intel, Crucial, OCZ, etcetera knows the exact failure rate of their drives.
We do know for a fact that they can fail in any number of methods. If seen references to:
1. totally dead doesn't respond to power at all
2. powers up but no data visible
3. the drive misreporting its size in MB instead of GB and data not being accessible
4. the drive working OK but data being wiped
I've heard people talking about how flash is supposed to fail to an unwriteable read only state but I've never seen anyone who actually knew of a drive in that state just references to flash documentation and Wikipedia articles.
I think if you ever have an SSD fail on you it will be all or nothing. I'm saying you'll never see a drive in the state where all the blocks are 100% worn out and the data is still readable. It's just extremely unlikely that you'll get into that state without hitting another problem first.
You could get there on purpose maybe if you setup lab conditions and sent writes to the drive in a consistent controlled manner and worked at keeping the drive from getting into a state the controller doesn't handle well but by the time you do it you'll have either spent thousands of dollars worth of equipment and staff to do so or years will have passed and people will scoff at your data at the end of the test.
You can mine sites like newegg for reliability data and you can mine the support forums but in both cases the manufacturer can get a message deleted or edited.
Assuming newegg data means anything to you we have (sorted by most reviews and only picking drives worth buying performance wise)
Intel 80GB retail 134 reviews 1 drive failed.
Intel 80GB OEM 193 reviews 6 drives failed.
combined we have 327 reviews and 7 drives failed or 1 failure for every 47 reviews (but we have no idea how many sold on newegg that didn't submit a review).
OCZ Vertex 30GB Retail 353 reviews 4 drives failed and another 17 reviews with what I'm guessing are compatibility issues. Hard to say what percentage of those are the SSD controllers fault.
OCZ Vertex 60GB retail is chock full of so many negative reviews I find it hard to categorize them all.
OCZ Agility 60GB retail is a similar story (it's the same controller as the vertex but just as importantly it's the same ODM)
Patriot Torqx 128GB retail 118 reviews about 50 dead drives
(worse than the vertex and agility but easier to count)
Intel 160GB OEM 61 reviews 4 drives failed
OCZ Agility 120GB retail 54 reviews 4 drives failed
Intel 160GB Retail 52 reviews 0 failed some reviews about a preproduction firmware batch accidentally escaping the lab.
Crucial M225 64GB Retail 50 reviews 2 failed
Partiot Torqx 64GB retail 35 reviews too many failures for me to care about counting. Call it one in 3 reviews with some reviews mentioning multiple failed drives
OCZ Vertex LE 100GB retail 17 reviews 0 failed (not exactly a large sample size and the are all reviews less than a month old. These drives could start failing any day now but for now the record is clean).
Crucial C300 128GB retail 11 reviews 0 failed (again too early to call)
Crucial C300 256GB retail 10 reviews 1 failed (again too early to call)
Corsair Nova series 7 reviews 0 failed (again too early to call)