TEST
YOUR USB

Drobo (ExtHD)

5D3 17.5TB

▲ 500 ▼

Release date ≈ Q1 2018.

Average Bench: 77.8% (6th of 639)

Based on 15 user benchmarks.  Device: VID 19b9 PID 3533 Model: Drobo 5D3
Poor: 48%Average: 77.8% Great: 119%

Good average bench

The Drobo 5D3 17.5TB averaged 22.2% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the Drobo 5D3 17.5TB near the top of the comparison list.

Strengths

Avg. 4K Random Write Speed 6.41MB/s
Avg. Sequential Write Speed 246MB/s

Very poor consistency

The range of scores (95th - 5th percentile) for the Drobo 5D3 17.5TB is 71%. This is a particularly wide range which indicates that the Drobo 5D3 17.5TB performs inconsistently under varying real world conditions.

Weaknesses

Avg. 4K Random Read Speed 4.12MB/s
Avg. Sequential Read Speed 161MB/s
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Average Bench

(Based on 15 samples)
Rank 677.8%
Min Avg Max
42 Read 161 222
39.7 Write 246 330
42.5 Mixed 144 240
41.2 SusWrite 125 313
234% 169 MB/s
Min Avg Max
0.03 4K Read 4.12 7.31
0.07 4K Write 6.41 8
0.03 4K Mixed 2.66 5.3
324% 4.4 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
1.5TB free, PID 3533
Operating at USB 3.0 Speed
SusWrite @10s intervals: 124 128 132 130 129 131 MB/s
85.5% Excellent
Read 218
Write 253
Mixed 159
SusWrite 129
254% 190 MB/s
4K Read 4.8
4K Write 8
4K Mixed 4.3
436% 5.7 MB/s
13.5TB free, PID 3533
Operating at USB 3.0 Speed
SusWrite @10s intervals: 88 90 88 87 85 94 MB/s
65.1% Good
Read 141
Write 265
Mixed 161
SusWrite 88.4
230% 164 MB/s
4K Read 5.8
4K Write 7.8
4K Mixed 4.7
447% 6.1 MB/s
6TB free, PID 3533
SusWrite @10s intervals: 79 76 73 68 66 68 MB/s
48.1% Average
Read 63
Write 241
Mixed 134
SusWrite 71.7
190% 127 MB/s
4K Read 2.4
4K Write 7.4
4K Mixed 2.5
346% 4.1 MB/s
12TB free, PID 3533
Operating at USB 2.1 Speed
SusWrite @10s intervals: 40 41 42 41 41 41 MB/s
38.7% Below average
Read 42
Write 39.7
Mixed 42.5
SusWrite 41.2
56% 41.3 MB/s
4K Read 2.5
4K Write 7.5
4K Mixed 1.7
322% 3.9 MB/s
15 MORE »
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  • Best user rated - User sentiment trumps benchmarks for this comparison.
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  • Fastest real world speed - Real World Speed measures performance for typical consumers.

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