We set out to achieve this with the realization
that flashmemory has drastically different characteristics
(such as no overwriting, slow writes, and nonvolatility) than
DRAM buffer, and they must be dealt with carefully and
exploited effectively. There are a few existing approaches
that store frequently accessed data in flash memory drives by
using them as either faster disk drives or an extension to the
RAM buffer. The FaCE method we propose is in line with
the existing approaches using flash memory as an extension
to the DRAM buffer, but it is also different from them in
several ways.