Clark said Seagate has also "tweaked" its Adaptive Memory algorithm for better performance. Seagate's Adaptive Memory software monitors what applications and data are first loaded into a system and then "learns" to place that data on the SSD to speed up performance. Over the course of three boot-ups, system performance becomes optimized to each user's preferences, Clark said.
Data is also copied first to the hard drive and then to the NAND; that ensures that if the NAND fails, data will not be lost. "If the NAND ever fails, you'll still have a perfectly good 7,200rpm hard drive," she said. "You'll still be able to boot up just like a regular hard drive, but you won't be able to take advantage of the NAND flash."
Copying frequently-used data to flash also means the SSD portion of the drive is almost always used for reads, not writes, which wears out NAND flash more quickly. The NAND flash also extends the life of the spinning disk, Clark said.
Lucas Mearian covers storage, disaster recovery and business continuity, financial services infrastructure and health care IT for Computerworld. Follow Lucas on Twitter at @lucasmearian or subscribe to Lucas's RSS feed. His email address is email@example.com.
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