RAID 0 I/O performance does not differ much at short command queues. With up to eight pending commands, all cards are head-to-head. For longer command queues, Areca seems to be limited to a little over 2,000 I/O operations per second. Only Promise manages to scale well at long queue depths, as it can reach almost 4,000 I/O operations per second in most of the benchmark patterns.
Summary
- 16-Port SAS RAID Cards Go Head-To-Head
- 4x4 Ports: Multi-Lane Technology, Enclosures, Connections
- Adaptec RAID 51645
- Adaptec Storage Manager
- Areca ARC-1680ix-16
- Promise Supertrak EX 16650
- Promise RAID Tools
- Hardware Comparison Table and Test Setup
- Results: Sequential Throughput
- Results: I/O Performance RAID 0
- Results: I/O Performance RAID 5
- Results: I/O Performance RAID 6
- Power Consumption And Conclusion
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