HP 3PAR Operating System Software - Manual (Page 373)

NOTE: The Speed number does not represent a rotational speed for the drives without spinning
media (SSDs). It is meant as a rough estimation of the performance difference between the drive
and the other drives in the system. For FC and NL drives, the number corresponds to both a
performance measure and actual rotational speed. For an SSD drive, the number is to be treated
as relative performance benchmark that takes into account in I/O per second, bandwidth, and
the access time.
Physical Disk I/O Time and I/O Size report for values over a time interval:
Physical Disk I/O Time and I/O Size report for values at a specified time:
Creating Reports 373