Seagate Enterprise Class v4 6TB Hard Drive

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Seagate Enterprise Class 3.5 HDD V4 6TB ST6000NM0024

August 18, 2014 by Lawrence Lee

Seagate Enterprise Class
3.5 HDD V4 6TB

3.5" Hard Drive
Street Price

The mechanical hard drive is the most antiquated component in modern computer systems as it still depends on moving parts. Despite the rigors of time and advances in alternative storage methods, it remains the most cost-effective solution to our growing storage needs. Throughout the 2000's, capacity expanded almost like clockwork, typically doubling every couple of years, but the drive density improvement rate has recently slowed. 3TB drives debuted in 2010 and 6TB models were introduced only this year. Still, there is always excitement when capacity bumps happen, not just for the new drives themselves but for the eventual price reduction of smaller models.

Getting to the 6TB level presented some problems, as only five platters normally fit in a standard 3.5 inch drive and the 1TB platter is the largest common standard. Manufacturers have got around this limitation in different ways. Hitachi made waves with the Ultrastar He6, a drive filled with low resistance Helium which reduces air friction and allows for seven thinner platters. Western Digital was able to increase their platter size to 1.2TB for the Red/Green 6TB models while sticking with a five platter count. Meanwhile, Seagate, through some tweaks in internal design, managed to fit six conventional 1TB platters in their 6TB drives.

The Enterprise Class 3.5 HDD v4 6TB.

Seagate Enterprise Class 3.5 HDD v4 6TB Specifications
(from the product data sheet)
Cache, Multisegmented 128 MB
Spindle Speed 7200 RPM
Interface Access Speed 6.0, 3.0, 1.5 Gb/s
Max. Sustained Transfer Rate OD 216 MB/s
Average Latency 4.16 ms
Idle Power, Average 6.9 W
Typical Operating Power, Random Read 11.27 W
Temperature, Operating 5 to 60 C
Shock, Operating, 2ms (Read/Write) 70/40 Gs
Shock, Nonoperating, 1ms and 2ms 250 Gs
Dimensions 26.1 x 101.85 x 147.0 mm
Weight 780 grams
Mean Time Between Failures 1.4M hours
Reliability Rating @ Full 24x7 Operation 0.63% (AFR)
Power-On Time per Year 8760 hours (24x7)
Sector Size (per Logical Sector) 512 Bytes
Limited Warranty 5 years

Our first 6TB sample is a doozy as a Seagate claims it's the world's fastest hard drive. The Enterprise Capacity 3.5 HDD v4 is, as you may have guessed, an enterprise class drive, designed for high performance, reliability, and equipped with features that allow it to function better in RAID. Compared to previous models, the v4 has improved error correction and parity and RAID rebuild capability (which in some cases can rebuild data without rebuilding the entire array). Our sample is the most basic model (SATA 6 Gbps with 512 byte sectors) but variants are available with options for a dual port 12 Gb/s SAS interface, 4K sectors, and self-encryption and secure erase capabilities. Drives are offered in 2TB, 4TB, 5TB, and 6TB capacities.



Physically, the drive looks like any other except for the incredibly dense housing. Typically there is a recess underneath and sometimes some support ribs, but with six platters, there is no room for any of this We've never seen a drive with an almost completely flat/flush cast bottom. Our sample was manufactured in May according to the date code, and it weighs a hefty 780 grams.

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