How do SATA drives use their cache? The mainframe drives that I worked on cached the entire track on any reference, presuming that locality of reference would generate subsequent cache hits.
Presuming SATA drives do something similar, does the way that DROBO lays out data render this caching mechanism ineffective?
Is there any way to know the cache hit/miss rates?
Bottom line: Is extra cache (8,16,32,64Gb) worth extra cash?