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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 Western Digital WD30EURS to the Western Digital WD20EVDS. For more performance comparisons, please take a look at The Hard Disk Drive Performance Comparison Guide.
4 KB Sequential Read
Outstanding I/Os |
WD30EURS (3 TB) |
WD20EVDS (2 TB) |
Difference |
1 |
13,848 IOPS |
13,343 IOPS |
+ 3.8% |
8 |
19,778 IOPS |
16,627 IOPS |
+ 18.9% |
32 |
19,815 IOPS |
16,630 IOPS |
+ 19.2% |
4 KB Sequential Write
Outstanding I/Os |
WD30EURS (3 TB) |
WD20EVDS (2 TB) |
Difference |
1 |
10,643 IOPS |
10,989 IOPS |
- 3.1% |
8 |
16,099 IOPS |
16,225 IOPS |
- 0.8% |
32 |
16,190 IOPS |
16,300 IOPS |
- 0.7% |
512 KB Sequential Read
Outstanding I/Os |
WD30EURS (3 TB) |
WD20EVDS (2 TB) |
Difference |
1 |
243 IOPS |
195 IOPS |
+ 24.5% |
8 |
243 IOPS |
195 IOPS |
+ 24.5% |
32 |
243 IOPS |
196 IOPS |
+ 24.0% |
512 KB Sequential Write
Outstanding I/Os |
WD30EURS (3 TB) |
WD20EVDS (2 TB) |
Difference |
1 |
243 IOPS |
195 IOPS |
+ 24.2% |
8 |
243 IOPS |
195 IOPS |
+ 24.8% |
32 |
242 IOPS |
195 IOPS |
+ 24.2% |
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• The 3 TB Western Digital AV-GP |
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• Testing The 3 TB Western Digital AV-GP |
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