How many times IO can be performed per second, each IO is fixed according to the size of the written data
B
If the IO writes a large piece of continuous data every time the channel is changed infrequently, what is done every second at this time IO frequency is relatively low
C
If the head frequently changes lanes, and the data written each time is relatively large, then the IOPS should be the lowest number of this disk value
D
If the smallest data block is written each time under the condition of infrequent lane change, such as 512 bytes, then the IOPS will be the highest value