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IOPS Scaling (Random)
In these tests, we tested the drive's ability to tackle multiple input/output operations. Again, we compared the 4 TB Western Digital Black (WD4003FZEX) to the 4 TB Western Digital Re (WD4000FYYZ). For more performance comparisons, please take a look at The Hard Disk Drive Performance Comparison Guide.
4 KB Random Read
Outstanding I/Os |
WD Black (4 TB) |
WD Re (4 TB) |
Difference |
1 |
81 IOPS |
81 IOPS |
+ 0.3% |
8 |
124 IOPS |
124 IOPS |
- 0.4% |
32 |
173 IOPS |
172 IOPS |
+ 0.6% |
4 KB Random Write
Outstanding I/Os |
WD Black (4 TB) |
WD Re (4 TB) |
Difference |
1 |
81 IOPS |
203 IOPS |
- 60.1% |
8 |
80 IOPS |
203 IOPS |
- 60.5% |
32 |
80 IOPS |
208 IOPS |
- 61.4% |
512 KB Random Read
Outstanding I/Os |
WD Black (4 TB) |
WD Re (4 TB) |
Difference |
1 |
45 IOPS |
57 IOPS |
- 20.6% |
8 |
46 IOPS |
58 IOPS |
- 20.9% |
32 |
58 IOPS |
83 IOPS |
- 30.2% |
512 KB Random Write
Outstanding I/Os |
WD Black (4 TB) |
WD Re (4 TB) |
Difference |
1 |
53 IOPS |
89 IOPS |
- 40.2% |
8 |
53 IOPS |
88 IOPS |
- 39.8% |
32 |
52 IOPS |
89 IOPS |
- 41.2% |
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• Testing The 4 TB Western Digital Black |
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• Transfer Rate Range, Platter Profile |
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