OCZ-Statement zu 25-nm-NAND in SSDs
Bereits auf des CES Anfang Januar teilte uns OCZ mit, dass seit Dezember Vertex-2-SSDs mit 25-nm-NAND-Flash von IMFT ausgeliefert werden. Erstaunlich war dies vor allem deshalb, weil die neuen Speicherchips bei anderen Herstellern noch nicht die erforderliche Lebensdauer erreichten und sogar Intel und Micron noch abwarteten.
OCZ gab jedoch an dieses Problem durch die Firmware der Laufwerke gelöst zu haben und statt der doch sehr wenigen 1.000 Program/Erase-Cycles (P/E) anderer Hersteller brauchbare Werte zu erreichen. Im Firmenforum hat sich das Unternehmen nun nochmals etwas ausführlicher zu den Laufwerken mit den neuen Speicherchips geäußert, die 3.000 P/E-Cycles erreichen sollen. Um die Lebenserwartung der Laufwerke dennoch auf einem angemessenen Niveau zu halten, wurde der Anteil des Reservespeichers um ein paar Gigabyte erhöht – im Falle der 120-GB-Modelle der Vertex 2 sind es wohl knapp fünf Gigabyte. Auf die Leistung und die Garantie habe der Wechsel keine Auswirkungen. Die offizielle Stellungnahme des Unternehmens finden interessierte Leser in voller Länge im nachfolgenden Klapptext.
OCZ Technology Group Official Statement – 2Xnm based SSDs
With the FABs transitioning to the new 2Xnm process OCZ is now shipping drives making use of the new NAND. Due to this natural transition to next generation NAND flash components end users will see a slight difference in the IDEMA (International Disk Drive and Equipment Materials Association) capacity of 2Xnm‐based SSDs. This switch requires OCZ to reserve additional space for the drives’ sophisticated performance and reliability features which provide real world benefits and are not offered by many other manufacturers. These features include RAID‐like data protection and recovery in the event of flash block malfunction, as well as advanced wear‐levelling to enhance the SSD’s endurance and lifespan.
These 2Xnm based SSDs are able to achieve original rated specifications and as with all SSDs the benchmarked performance may vary depending on type of benchmarking software used, drivers, Windows version, bios version and file size. To provide an additional reference point for customers OCZ utilizes multiple benchmarks to gauge performance including ATTO and now AS-SSD.
We also recommend other benchmarks including IOMeter, PC Mark Vantage. More
information about these benchmarks and specifications can be found on the individual product pages.
OCZ strives to deliver the latest technology at aggressive prices, and with this latest transition OCZ has also brought down the price per GB to make SSD technology even more accessible to consumers. All 2Xnm‐based SSDs carry the same Warranty as previous OCZ SSD products and it is OCZ’s objective to give customers the very best balance of performance, reliability and capacity ensuring an optimal experience for consumers across the complete spectrum of applications.
As always, if customers have any questions or concerns we encourage them to contact their OCZ representative or a member of the Worldwide Customer Service Team. We thank you for both your support and business.
Additional Sequential benchmark data is now provided...for vertex2 check here:
http://www.ocztechnology.com/images/OCZ_Vertex2_2.5_AS-SSD.pdf
For Agility 2 check here:
http://www.ocztechnology.com/images/OCZ_Agility2_2.5_AS-SSD.pdf
Info on RAISE can be found here.. http://www.sandforce.com/index.php?id=19&parentId=2 the short of it is that is it an important feature of DURACLASS.
The capacity change you are seeing on drives under 180GB is due to RAISE, WE are not falsely advertising the drives, the overall capacity of the NAND has remained the same; RAISE capacity has changed though which does result in a slight increase of OP...OCZ are unable to alter this, RAISE is not an enable/disable option.
I have given as much info as I can publicly now, if I am released to publish more I will do, you maybe able to find more if you search.