Also: Did you low-level format to 4K blocks, or is is still using 512 byte blocks? Various options for the kernel module also have a significant effect, as do B

Also: Did you low-level format to 4K blocks, or is is still using 512 byte blocks? Various options for the kernel module also have a significant effect, as do BIOS settings (C-states, etc.). I got 2.5-2.9 GB/sec (iirc) with a FusionIO ioDrive2 Duo. It has been more than a year so I do not remember all the details.