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IOPS Scaling
In these tests, we tested the drive's ability to tackle multiple input/output operations. Again, we compared the 4 TB Western Digital RE (WD4000FYYZ) to the 2 TB Western Digital RE4-GP. For more performance comparisons, please take a look at The Hard Disk Drive Performance Comparison Guide.
Note the huge jump in performance when the two drives were stressed with simultaneous transactions. The WD RE (4 TB)'s dual-core processor is certainly helping to greatly increase the number of sequential transactions the drive can process.
4 KB Sequential Read
Outstanding I/Os |
WD RE (4 TB) |
WD RE4-GP (2 TB) |
Difference |
1 |
13,322 IOPS |
13,822 IOPS |
- 3.6% |
8 |
39,730 IOPS |
22,347 IOPS |
+ 77.8% |
32 |
37,646 IOPS |
22,305 IOPS |
+ 68.8% |
4 KB Sequential Write
Outstanding I/Os |
WD RE (4 TB) |
WD RE4-GP (2 TB) |
Difference |
1 |
13,534 IOPS |
11,187 IOPS |
+ 21.0% |
8 |
39,362 IOPS |
20,750 IOPS |
+ 89.7% |
32 |
36,095 IOPS |
20,584 IOPS |
+ 75.4% |
512 KB Sequential Read
Outstanding I/Os |
WD RE (4 TB) |
WD RE4-GP (2 TB) |
Difference |
1 |
327 IOPS |
218 IOPS |
+ 50.2% |
8 |
327 IOPS |
217 IOPS |
+ 50.9% |
32 |
324 IOPS |
217 IOPS |
+ 49.2% |
512 KB Sequential Write
Outstanding I/Os |
WD RE (4 TB) |
WD RE4-GP (2 TB) |
Difference |
1 |
327 IOPS |
218 IOPS |
+ 50.3% |
8 |
327 IOPS |
218 IOPS |
+ 50.0% |
32 |
327 IOPS |
219 IOPS |
+ 49.7% |
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• The 4 TB Western Digital RE |
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• Peeking Under The PCB |
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• Better Reliability Through Technology |
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• Testing The 4 TB Western Digital RE |
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