The Ultra High Performance level is the only OCI Block Volume performance level that can meet the requirement of at least 105 IOPS/GB and 100,000 IOPS per volume. The Ultra High Performance level is recommended for workloads with the highest I/O requirements, requiring the best possible performance. With this option, you can purchase between 30 - 120 VPUs (volume performance units) per GB/month. The VPUs determine the baseline performance of the volume, as well as the maximum burst performance. The Ultra High Performance level offers the following performance characteristics: 1 Baseline IOPS/GB: 75 Maximum IOPS/GB: 300 Maximum IOPS per volume: 480,000 Baseline throughput/GB: 0.6 MB/s Maximum throughput/GB: 2.4 MB/s Maximum throughput per volume: 3,680 MB/s To achieve the requirement of at least 105 IOPS/GB, you need to purchase at least 45 VPUs/GB. To achieve the requirement of 100,000 IOPS per volume, you need to have a volume size of at least 334 GB. Therefore, the Ultra High Performance level can satisfy both requirements with a minimum volume size of 334 GB and a minimum VPUs/GB of 45.
The other performance levels (Balanced, Higher Performance, and Lower Cost) cannot meet the requirement of at least 105 IOPS/GB and 100,000 IOPS per volume. The Balanced level offers 10 VPUs/GB, with a baseline of 60 IOPS/GB and a maximum of 75 IOPS/GB. The Higher Performance level offers 20 VPUs/GB, with a baseline of 75 IOPS/GB and a maximum of 150 IOPS/GB. The Lower Cost level offers 2 VPUs/GB, with a baseline of 2 IOPS/GB and a maximum of 10 IOPS/GB. None of these levels can provide the required performance for the workload1