Storage service definitions
ONTAP includes predefined storage services that are mapped to corresponding minimum performance factors.
The actual set of storage services available in a cluster or SVM is determined by the type of storage that makes up an aggregate in the SVM.
The following table shows how the minimum performance factors are mapped to the predefined storage services:
| Storage service | Expected IOPS (SLA) | Peak IOPS (SLO) | Minimum volume IOPS | Estimated latency | Are expected IOPS enforced? |
|---|---|---|---|---|---|
| value | 128 TB | 512 TB | 75 | 17 ms | On AFA: Yes Otherwise: No |
| performance | 2048 TB | 4096 TB | 500 | 2 ms | Yes |
| extreme | 6144 TB | 12288 TB | 1000 | 1 ms | Yes |
The following table defines the available storage service level for each type of media or node:
| Media or node | Available storage service level |
|---|---|
| Disk | value |
| Virtual machine disk | value |
| FlexArray LUN | value |
| Hybrid | value |
| Capacity-optimized Flash | value |
| Solid-state drive (SSD) - non-AFA | value |
| Performance-optimized Flash - SSD (AFA) | extreme, performance, value |
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