WD Red Pro 20TB HDD Review

1. Introduction2. WD Red Pro 20TB3. Testing Methodology4. CrystalDiskMark5. ATTO Disk Benchmark6. 4K Random Performance7. Throughput8. Workload Scenarios9. Real Life File Testing10. Closing Thoughts11. View All Pages

We tested the 20TB Red Pro with a number of scenarios that it may face in the real world. The settings for these scenarios are as follows.

File Server
512MB file size, 16KB Block size
80% Read 20% Write 100% Random
I/O queue depth 128

Web Server
1GB file size, 16KB Block size
100% Read 0% Write 100% Random
I/O queue depth 64

Database
2GB file size, 4KB Block size
90% Read 10% Write, 90% Random, 10% Sequential
I/O depth 128

Workstation
1GB file size, 16KB Block size
70% Read 30% Write, 100% Random, 0% Sequential
I/O depth 6

The 20TB WD Red Pro produced the fastest performance (18.07MB/s) for a mechanical drive we’ve seen to date for the Web Server test. It produces very strong performance for the other three tests as well.

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