Benchmark hard disks (i.e. the disk itself, not the file system). Shows how your physical disks connected to the storage adapters or hosts compare to other disks in a typical computer.
As the test measures raw performance it is independent on the file system the disk uses and any volumes mounted off the disk.
Drive Score: is a composite figure representing an overall performance rating based on the highest read or write speed across the whole disk. Thus the higher the better.
Access Time: is the average time to read a random sector on the disk, analogous to latency response time. Thus the lower the better.