Seagate NAS HDD 4TB

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Power Consumption

The NAS HDD 4TB idled at 4.8 W while 5.5 W was consumed during seek activity which is about what you would expect for a low RPM, high capacity drive these days. The WD Red has an 0.8 W advantage sitting idle while the NAS HDD used 0.7 W less when seeking. It's preferable to have better energy efficiency when nothing is going on.

Acoustics

The current crop of low RPM hard drives are exceedingly quiet and the NAS HDD 4TB is no exception. Sitting idle, it produced a soft, innocuous whooshing which measured 15 dBA@1m. Seeks were difficult to detect at distance by ear but our equipment registered a 1~2 dB increase difference. The sound produced was not unpleasant, not particularly scratchy or thumpy.

While we did notice a peak at ~120 Hz, this appears to have been coincidental. There was also a spike at just under 100 Hz which corresponds to a 5,900 RPM rotational speed and this was backed up by HD Tune and our performance tests. If it's a 7,200 RPM model, it's a very slow and quiet one.

Comparison Chart: Environmental Characteristics

1TB+ DESKTOP HARD DRIVES
Drive
Mfg date
firmware version
Vibration
1-10
(10 = no vibration)
Activity State
Airborne Acoustics
(dBA@1m)
Measured
Power
WD Caviar Green 2TB WD20EARS
August 2010
firmware 01.00A01
9
Idle
12~13
2.8 W (2.4 W heads parked)
Seek
6.5 W
WD Red 1TB WD10EFRX-68JCSN0
June 2012
firmware 01.01A01
8
Idle
12~13
2.9 W
Seek
4.1 W
WD Caviar Green 1.5TB WD15EADS
November 2009
firmware 01.00A01
9
Idle
13
4.5 W (2.8 W heads parked)
Seek
13~14
5.8 W
Samsung EcoGreen F4 2TB HD204UI
August 2010
firmware 1AQ10001
7
Idle
13
4.0 W
Seek
15
5.6 W
WD Caviar Green 2TB WD20EVDS-63T3B0
February 2009
firmware 01.00A01
8~9
Idle
13~14
3.9 W
Seek
6.5 W
WD Red 3TB WD30EFRX-68AX9N0
June 2012
firmware 80.00A80
9
Idle
13~14
3.6 W
Seek
4.9 W
WD Caviar Green 2TB WD20EADS
February 2009
firmware 01.00A01
7
Idle
14
2.8 W (2.4 W heads parked)
Seek
13~14
6.5 W
Hitachi Deskstar 7K1000.C 1TB HDS721010CLA332
February 2010
firmware JP4OA39C
5
Idle
13
4.6 W
Seek (AAM)
15~16
6.4 W
Seek
17
9.6 W
WD Caviar Green 3TB WD30EZRS
September 2010
firmware 01.00A01
8
Idle
14~15
4.1 W (3.7 W heads parked)
Seek
7.5W
WD Red 4TB WD40EFRX-68WT0N0
August 2013
firmware 80.00A80
8~9
Idle
15
4.0 W (3.2 W heads parked)
Seek
15~16
6.2 W
Hitachi Deskstar 5K3000 2TB HDS5C3020ALA632
April 2011
firmware 580
7
Idle
14~15
4.1W
Seek
15
5.6 W
WD Caviar Blue 1TB WD10EALS-002BA0
August 2010
firmware 05.01D05
7
Idle
14
5.2 W
Seek (AAM)
16~17
6.6 W
Seek
20
8.2 W
Seagate Barracuda Green 2TB ST2000DL003
November 2010
firmware CC31
8
Idle
14~15
4.6 W
Seek
17~18
7.3 W
Seagate NAS HDD 4TB ST4000VN000-1H4168
September 2013
firmware SC43
7~9
Idle
15
4.8 W (4.1 W heads parked)
Seek
16~17
5.5 W
Seagate Barracuda 3TB ST3000DM001-9YN166
November 2011
firmware CC47
8
Idle
16
6.4 W
(5.6 W >30 secs)
(3.9 W >50 secs)
Seek
16~17
9.9 W
WD Se 4TB WD4000F9YZ-09N20L0
October 2013
firmware 01.01A01
7
Idle
16
8.1 W
Seek
18~19
9.7 W
Hitachi Deskstar 7K3000 2TB HDS723020BLA642
August 2011
firmware MNGOA5C0
5
Idle
17
5.3 W
Seek
18
7.8 W
Seagate Barracuda XT 2TB ST32000651AS
May 2010
firmware CC13
7~8
Idle
17
7.0 W
Seek
18~19
7.9 W
WD VelociRaptor 1TB WD1000DHTZ-04N21V0
March 2012
firmware 04.06A00
7
[bare]
Idle
[16~17]
18
4.0 W
[bare]
Seek
[27]
32
5.3 W

Seagate generously provided us with four sample drives of this model, and they exhibited some variance in terms of vibration. On our subjective scale, one scored 7~8, two scored 8, and the fourth scored 8~9, for an average result of 8. If you decide to pick up a 4TB NAS HDD, chances are, vibration won't be an issue. Noise levels were fairly consistent across the samples as was energy efficiency. This model appears to have a headparking feature that shaves 0.7 W off the idle power consumption but it's not very aggressive, kicking in after about 40 seconds of nonuse.

While we don't really have any complaints about its environmental characteristics, in almost every area, the WD Red 4TB is just a bit better.



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