To follow-up:
The SATA controllers are on an Asus P9X79-E WS. The controllers consist of:
Intel SATA III, 2 ports
Intel SATA II, 4 ports
Marvel SATA III, 4 ports
I had previously benchmarked controller based RAID0 and Linux RAID0 and found
the software solution on this box was 10% slower than the controllers'
solutions. The margin was sufficiently low that I chose the software solution
as it is transportable between machines.
Using Linux software RAID0, my speed (MB/s) findings are:
Single SSD RAID0, 2 SSDs
Intel SATA III 540 960
Intel SATA II 530 535
Marvel SATA III 535 750
The access time on all was 0.14 seconds.
These benchmarks were obtained using Debian stretch supplied 'disk' utility on
Crucial 30GB, 60GB and 120GB SSD modules.
