Western Digital Ultrastar DC HC560 20TB HDD Review

1. Introduction2. WD Ultrastar DC HC560 20TB3. Testing Methodology4. CrystalDiskMark5. ATTO Disk Benchmark6. IOMeter 4K Random Performance7. Throughput8. Workload Scenarios9. Real Life File Transfer Tests10. Closing Thoughts11. View All Pages

In our throughput tests, reads peaked at 277MB/s (16MB block) while writes peaked at the 512KB block mark at 278MB/s before dropping back very slightly to finish the test run at 275MB/s. Both peak figures confirmed the official maximum transfer rate of 269MB/s.

With a peak read result of 277MB/s, the DC HC560 is the fastest HDD we've seen to date when it comes to read throughput.

When it comes to write throughput, the drive finishes the test run at 275MB/s, the second-fastest drive we've seen to date, just behind Seagate's Exos X20 20TB data centre focused drive.

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