HP 3PAR Operating System Software - Manual (Page 383)

Description Column
Average read service time in milliseconds. Read Svct ms
Average write service time in milliseconds. Write Svct ms
Average total (read + write) service time in milliseconds. Total Svct ms
Average size of read operations, in kilobytes. Read I/O Size
Average size of write operations, in kilobytes. Write I/O Size
Average size of (read + write) operations, in kilobytes. Total I/O Size
Queue length at sample time. Length
The percentage of time the object is busy (has at least one outstanding I/O request). For RCFC
ports, the value is always 100%, as the read requests are always waiting in the queue to be
processed. Avg Busy
For values at a specified time chart types, the table might also display the port node, port slot, port
number, device type, and disk speed (in thousands of RPMs).
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 Performance Statistics report for values over a time interval:
Creating Reports 383