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IOPS Scaling (Sequential)
In these tests, we tested the drive's ability to tackle multiple input/output operations. We compared the 4 TB Western Digital Blue (WD40E31X) SSHD to the 4 TB Western Digital Red (WD40EFRX). For more performance comparisons, please take a look at The Hard Disk Drive Performance Comparison Guide.
The 4 TB Western Digital Blue SSHD did quite well in these tests, with its flash memory cache giving it a nice boost in performance. It only looks unsubstantial in comparison to the remarkable performance advantage we saw in the random access tests.
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4 KB Sequential Read
Outstanding I/Os |
WD Blue SSHD |
WD Red |
Difference |
1 |
12,523 IOPS |
12,550 IOPS |
- 0.2% |
8 |
36,284 IOPS |
22,904 IOPS |
+ 58.4% |
32 |
36,330 IOPS |
34,788 IOPS |
+ 4.4% |
4 KB Sequential Write
Outstanding I/Os |
WD Blue SSHD |
WD Red |
Difference |
1 |
11,252 IOPS |
9,802 IOPS |
+ 14.8% |
8 |
34,321 IOPS |
27,086 IOPS |
+ 26.7% |
32 |
32,561 IOPS |
27,093 IOPS |
+ 20.2% |
512 KB Sequential Read
Outstanding I/Os |
WD Blue SSHD |
WD Red |
Difference |
1 |
308 IOPS |
278 IOPS |
+ 10.8% |
8 |
309 IOPS |
278 IOPS |
+ 11.4% |
32 |
301 IOPS |
277 IOPS |
+ 8.8% |
512 KB Sequential Write
Outstanding I/Os |
WD Blue SSHD |
WD Red |
Difference |
1 |
302 IOPS |
277 IOPS |
+ 9.0% |
8 |
304 IOPS |
278 IOPS |
+ 9.6% |
32 |
305 IOPS |
277 IOPS |
+ 9.9% |
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4 TB Western Digital Blue SSHD Review |
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• Testing The 4 TB WD Blue SSHD |
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• Transfer Rate Range, Platter Profile |
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