IOPS stands for Input/Output Operations Per Second. It measures how many disk read/write operations your server performs per second (operation count, not data size).
- Read IOPS: Number of read operations per second
- Write IOPS: Number of write operations per second
Tip:
High IOPS with low MB/s often means many small requests (common in databases). Lower IOPS with higher MB/s usually indicates fewer, larger transfers.