There is no more likelihood of DuraWrite loosing data than if it was not present.and:
That is why SandForce created RAISE (Redundant Array of Independent Silicon Elements) and includes it on every SSD that uses a SandForce SSD Processor. ... if the ECC engine is unable to correct the bit error RAISE will step in to correct a complete failure of an entire sector, page, or block. ...This combination of ECC and RAISE protection provides a resulting UBER of 10-29 virtually eliminates the probabilities of data corruption.I would regard both claims with considerable skepticism:
- SandForce has not disclosed the details of their technology, but the research performed by Michael Wei and his co-authors at UCSD revealed that it definitely includes de-duplication. Thus the first claim is not credible; there is only a single copy of the supposedly redundant data in the flash array instead of multiple copies. The metadata must therefore be at higher risk.
- As regard the second claim, in my earlier ACM Queue article I show that manufacturers claims of error rates such as 10-29 are not credible because they are not the result of experiments, but of models which are unrealistic and unverified.