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IOPS Scaling (Sequential)
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 Sequential Read
Outstanding I/Os |
WD Black (4 TB) |
WD Re (4 TB) |
Difference |
1 |
13,905 IOPS |
13,222 IOPS |
+ 4.4% |
8 |
37,720 IOPS |
39,730 IOPS |
- 5.1% |
32 |
37,562 IOPS |
37,646 IOPS |
- 0.2% |
4 KB Sequential Write
Outstanding I/Os |
WD Black (4 TB) |
WD Re (4 TB) |
Difference |
1 |
13,255 IOPS |
13,534 IOPS |
- 2.1% |
8 |
37,366 IOPS |
39,362 IOPS |
- 5.1% |
32 |
42,190 IOPS |
36,095 IOPS |
- 16.9% |
512 KB Sequential Read
Outstanding I/Os |
WD Black (4 TB) |
WD Re (4 TB) |
Difference |
1 |
329 IOPS |
327 IOPS |
+ 0.8% |
8 |
330 IOPS |
327 IOPS |
+ 1.0% |
32 |
331 IOPS |
324 IOPS |
+ 2.1% |
512 KB Sequential Write
Outstanding I/Os |
WD Black (4 TB) |
WD Re (4 TB) |
Difference |
1 |
330 IOPS |
327 IOPS |
+ 0.9% |
8 |
331 IOPS |
327 IOPS |
+ 1.0% |
32 |
331 IOPS |
327 IOPS |
+ 1.1% |
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• Testing The 4 TB Western Digital Black |
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• Transfer Rate Range, Platter Profile |
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