TEST
YOUR USB

ST8000AS (ExtHD)

0002-1NA17Z 8TB

▲ 500 ▼

Release date ≈ Q3 2016.

Average Bench: 60.4% (14th of 639)

Based on 25 user benchmarks.  Device: VID 067b PID 2773 Model: ST8000AS 0002-1NA17Z
Poor: 31%Average: 60.4% Great: 87%

Above average average bench

The ST8000AS 0002-1NA17Z 8TB averaged 39.6% lower than the peak scores attained by the group leaders. This isn't a great result which indicates that there are much faster alternatives on the comparison list.

Strengths

Avg. 4K-64Thread Write Speed 10.4MB/s
Avg. 4K Random Write Speed 8.81MB/s

Below average consistency

The range of scores (95th - 5th percentile) for the ST8000AS 0002-1NA17Z 8TB is 56.6%. This is a relatively wide range which indicates that the ST8000AS 0002-1NA17Z 8TB performs inconsistently under varying real world conditions.

Weaknesses

Avg. 4K-64Thread Read Speed 0.68MB/s
Avg. 4K Random Read Speed 0.92MB/s
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Average Bench

(Based on 25 samples)
Rank 1460.4%
Min Avg Max
32.5 Read 82.1 142
26.4 Write 106 155
25.5 Mixed 63.1 118
21 SusWrite 84.9 172
116% 84 MB/s
Min Avg Max
0.4 4K Read 0.92 2.8
0.3 4K Write 8.81 11.3
0.43 4K Mixed 0.68 1
326% 3.47 MB/s
Min Avg Max
0.2 DQ Read 0.68 1.39
4.34 DQ Write 10.4 12.6
0.42 DQ Mixed 0.76 1.1
382% 3.95 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
4.5TB free, PID 2773
Operating at USB 3.0 Speed
SusWrite @10s intervals: 174 174 174 172 168 172 MB/s
82.2% Excellent
Read 98.7
Write 154
Mixed 72
SusWrite 172
177% 124 MB/s
4K Read 1.2
4K Write 9.8
4K Mixed 0.9
368% 3.97 MB/s
DQ Read 0.4
DQ Write 10.8
DQ Mixed 0.9
399% 4.03 MB/s
3.5TB free, PID 2773
Operating at USB 3.0 Speed
SusWrite @10s intervals: 127 138 145 152 145 139 MB/s
67.4% Good
Read 103
Write 123
Mixed 76.7
SusWrite 141
154% 111 MB/s
4K Read 0.5
4K Write 7
4K Mixed 0.7
264% 2.73 MB/s
1.5TB free, PID 2773
Operating at USB 3.0 Speed
SusWrite @10s intervals: 100 105 102 106 106 106 MB/s
66.9% Good
Read 100
Write 125
Mixed 79.9
SusWrite 104
141% 102 MB/s
4K Read 0.6
4K Write 9.6
4K Mixed 0.8
356% 3.67 MB/s
DQ Read 0.3
DQ Write 10.4
DQ Mixed 0.9
385% 3.87 MB/s
2TB free, PID 2773
Operating at USB 3.0 Speed
SusWrite @10s intervals: 75 68 72 74 71 72 MB/s
65.6% Good
Read 132
Write 155
Mixed 71
SusWrite 72.1
142% 108 MB/s
4K Read 1.1
4K Write 9.9
4K Mixed 0.9
371% 3.97 MB/s
DQ Read 0.4
DQ Write 10.7
DQ Mixed 0.9
396% 4 MB/s
95GB free, PID 2773
Operating at USB 3.0 Speed
SusWrite @10s intervals: 75 76 76 76 76 76 MB/s
60.9% Good
Read 66
Write 108
Mixed 80.5
SusWrite 75.7
117% 82.4 MB/s
4K Read 0.6
4K Write 11.3
4K Mixed 0.8
414% 4.23 MB/s
DQ Read 0.4
DQ Write 10.9
DQ Mixed 0.9
403% 4.07 MB/s
163GB free, PID 2773
Operating at USB 3.0 Speed
SusWrite @10s intervals: 48 45 49 44 47 47 MB/s
41.9% Average
Read 69.5
Write 87.9
Mixed 72.9
SusWrite 46.8
95% 69.3 MB/s
4K Read 0.4
4K Write 7
4K Mixed 0.6
260% 2.67 MB/s
350GB free, PID 2773
Operating at USB 2.1 Speed
SusWrite @10s intervals: 35 36 36 36 36 36 MB/s
36.2% Below average
Read 32.8
Write 34.2
Mixed 31.2
SusWrite 35.8
46% 33.5 MB/s
4K Read 1.2
4K Write 7.6
4K Mixed 0.4
276% 3.07 MB/s
1.5TB free, PID 2773
Operating at USB 2.1 Speed
SusWrite @10s intervals: 18 19 27 16 19 26 MB/s
13.8% Very poor
Read 52.5
Write 26.4
Mixed 26.5
SusWrite 21
38% 31.6 MB/s
4K Read 2.8
4K Write 0.3
4K Mixed 0.5
38% 1.2 MB/s
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