Can You test docker container on rock64 on different storage - usb3, microsd, usb2 and ramdisk?
Primary test setup will be - install docker, setup ssl certs, use nginx with phpfpm docker ready to go container, run some php scripts with possible memcache access.
Why docker? Because it is easy to pass storage path for test without affecting host os for needed software. And later to scale everything using GbE
Test area - real life test bench on ssl decr/encr, storage and ram perf and access timings. Some sort of php math calculations or use openssl library to load cpu cores.