Page 2 - A Closer Look, Test System
As always, with our storage reviews, before we move on to the benchmark results, let us briefly discuss the physical attributes of this hard disk drive first. The NAS HDD ST8000VN0002 8TB is your quintessential 3.5" hard drive from Seagate; all you have at the top is bare metal with a dull silver finish, and a large label placed across the middle. If you have owned a Seagate drive in the past before, this one is no different. It weighs in at 780g each, or about 1.72lbs. On the label, you will also spot information like its 8000GB drive capacity, model name, serial number, model number, part number, firmware revision, manufacturing date, SATA interface logo, and that it is a product of Thailand. The Seagate NAS HDD comes with a three year limited warranty.
Turning the Seagate NAS HDD ST8000VN0002 8TB around, and you will see a green printed circuit board that interfaces between its SATA 6Gb/s interface and the physical mechanical components. Mechanically, the Seagate NAS HDD ST8000VN0002 8TB is a 7,200RPM drive with six 1.33TB platters inside. These are very high density platters, and should translate to great performance in our benchmarks. You will see 7.27TB in Windows. The rated power consumption is 0.6W standby, 7.2W idle, and 9W active operating power, which is pretty high. In fact, the 8TB NAS HDD is consumes nearly twice the amount of power as its 5,900RPM 4TB counterpart.
As far as electronic components are concerned, the Seagate NAS HDD ST8000VN0002 8TB features an LSI TTB71001V0 dual core drive controller. To control the motor, a SMOOTH/Seagate branded chip labeled 780BN V5 gets the job done. A massive Winbond W6326G6KB-12 256MB IC acts as the cache for the drive. These are pretty much identical components as the Enterprise Capacity 3.5 HDD V.5 ST8000NM0055 8TB from the company.
But before we delve into the benchmarking, I would like to spend a little bit of time discussing the unique characteristics of the Seagate NAS HDD ST8000VN0002 8TB NAS drive. What makes a NAS drive, a NAS drive? From a hardware perspective, usually, it will feature optimized consumption. Since file servers are designed to be turned on 24/7, reduced power consumption can make a significant difference on your power bill, especially if you have many drives. Reliability enhancements are also made with what Seagate calls "Dual Plane Balance", which refers to the disk being physically balanced properly to reduce excessive vibration and noise in a multi-drive configuration, such as your network attached storage system. Thanks to its improved vibration tolerance, the ST8000VN0002 will play nice even if you have up to eight drives running concurrently in the same system. Its mean time before failure (MTBF) is rated at 1,000,000 hours, with a 180TB per year workload rate limit.
The real deal, however, comes down to the Seagate NAS HDD being ERC enabled. If a drive is not ERC enabled, it may be dropped out of a RAID array unexpectedly down the road. ERC stands for 'Error Recovery Control', which is Seagate's name for a feature that limits a hard drive's error recovery time to seven seconds (Western Digital calls it TLER; HGST calls it CCTL). According to Seagate, desktop hard drives may enter deep recovery mode, and could take twenty seconds or longer to deal with a bad sector. During this time, the hard drive will not respond. Because of this, RAID controllers may mark the drive as unreliable, because it has failed to respond within a set period of time.
For small NAS environments, most people probably will not need hardcore enterprise grade drives, which are usually quite expensive. TLER and related RAID array configuration problems are more crucial with demanding business environments than a home or SOHO NAS setup with just two or three drives. Linux software RAID that your network attached storage system implements is much more lenient with consumer desktop drives. Personally, I have run RAID 5 arrays in my QNAP systems from 2010 to 2014 using regular disks with absolutely no problems at all. However, drives like the Seagate NAS HDD are specifically tested for compatibility, designed for reliability in this operating environment, and comes TLER enabled from the factory to ensure you will not experience related issues down the road. With a price comparable to desktop drives, the Seagate NAS HDD series is simply a no-brainer if you are looking to fill up your file server.
Our test configuration is as follows:
CPU: Intel Core i7-4790K @ 4.6GHz
CPU Cooling: Noctua NH-D15S
Motherboard: Gigabyte GA-Z97X-UD3H-BK
RAM: Patriot Viper 3 Low Profile PC3-17000 4x8GB
Graphics: Gigabyte G1 Gaming GeForce GTX 960 4GB
Chassis: Fractal Design Define R5
Storage: OCZ Vector 180 240GB; Crucial MX200 500GB
Power: PC Power & Cooling Silencer Mk III 1200W
Sound: Auzentech X-Fi Bravura
Optical Drive: LiteOn iHAS224-06 24X DVD Writer
Operating System: Microsoft Windows 10 Pro
Compared Hardware:
- Seagate NAS HDD ST8000VN0002 8TB (Hard Drive)
- Crucial MX200 500GB (Solid State Drive)
- HGST Deskstar NAS 4TB (Hard Drive)
- Seagate Desktop SSHD ST4000DX001 4TB (Hybrid Hard Drive)
- Seagate Enterprise Capacity 3.5 HDD V.5 ST8000NM0055 8TB (Hard Drive)
- Seagate Laptop SSHD ST500LM000 500GB (Hybrid Hard Drive)
- Seagate NAS HDD ST4000VN000 4TB (Hard Drive)
- Western Digital Black WD6001FZWX 6TB (Hard Drive)
- Western Digital Blue SSHD WD40E31X 4TB (Hybrid Hard Drive)
- Western Digital Red WD40EFRX 4TB (Hard Drive)
- Western Digital Red WD60EFRX 6TB (Hard Drive)
- Western Digital Red Pro WD4001FFSX 4TB (Hard Drive)
- Western Digital Red Pro WD6001FFWX 6TB (Hard Drive)
Page Index
1. Introduction, Packaging, Specifications
2. A Closer Look, Test System
3. Benchmark: AIDA64 Disk Benchmark
4. Benchmark: ATTO Disk Benchmark
5. Benchmark: Crystal Disk Mark 3.0
6. Benchmark: HD Tach 3.0.1.0
7. Benchmark: HD Tune Pro 4.60
8. Benchmark: PassMark PerformanceTest 8.0
9. Benchmark: PCMark 7
10. NAS Performance, Power Consumption
11. Conclusion
