IOPS (Input/output Operations per Second; pronounced "eye-ops") is a common performance measurement used to benchmark computer storage devices like hard disk drives (HDD), solid state drives (SSD), and storage area networks (SAN). As with any benchmark, IOPS numbers published by storage device manufacturers do not guarantee real-world application performance. IOPS are measured in both Commands per Second (IO operations per second) or Throughput (Megabytes per Second).
In the sizing charts for the Exinda virtual appliance (EXN-V) we have represented the measurement in Commands per Second. There are three numbers for IOPS:
- EC IOPS for Edge Cache IOPS
- Monitoring IOPS
- Average IOPS for Optimization IOPS
The formula to calculate the IOPS for EXN-V you will add the IOPS for each service:
Edge Cache IOPS + Monitoring IOPS + Average Optimization IOPS = Total IOPS
| Example: Virtual Model - 2061 | IOPS |
|---|---|
| Edge Cache IOPS | 30 |
| Monitoring IOPS | 140 |
| Average Optimization IOPS | 200 |
| Total IOPS | 370 |
- On the Custom Performance Chart for the EXN-V, select Virtual disk > Real-time.
- Select Average write requests per second (inbound and outbound). The report indicates the Minimum, Maximum, and Average Commands per Second.
