HGST主流硬盘数据对比参考

sb2vjmy

自行整理，难免疏漏，给需要买大容量硬盘的朋友：
红色为性能突出，蓝色为相对较弱


Ultrastar Archive Ha10Ultrastar He8Ultrastar He6Ultrastar  7K6000Ultrastar  7K4000Deskstar NAS

SATA ModelsSATA ModelsSATA ModelsSATA ModelsSATA ModelsSATA Models
General









InterfaceSATA 6Gb/sSATA 6Gb/sSATA 6Gb/sSATA 6Gb/sSATA 6Gb/sSATA 6Gb/s
Capacity (GB)10,000 (10TB)8TB / 6TB6TB6TB / 5TB / 4TB / 2TB4TB / 3TB / 2TB6TB / 5TB / 4TB / 3TB
Sector size  (Variable, Byes/sector)512e: 512 ; 4Kn: 4096512e: 512 ; 4Kn: 4096512n4Kn: 4096 / 512e: 512512e/512n512n
Max Areal  Density (Gbits/sq. in.)830664 (8TB)544512e/4Kn: 703 (6TB),  599 (<6TB), 512n*: 623446/475703/586, 446/425
Form Factor3.5-inch HDD3.5-inch HDD3.5-inch HDD3.5-inch HDD3.5-inch HDD3.5-inch HDD
　









Performance









Data Buffer  (MB)2561286412864128(6TB/5TB)/64(4TB/3TB)
Rotational  Speed (RPM)720072007200720072007200
Latency  Average (ms)4.164.164.164.164.164.16
Interface  transfer rate (MB/sec, max)600600600600600600
Sustained  transfer rate (MB/sec, typ.)157 (read), 68  (write)*205MB/s (8TB) /  195Mib/s (8TB)177MB/s: 227 (6TB), 202  (<6TB) / MiB/s: 216 (6TB), 192 (<6TB)171/181246/205, 205/192
Seek Time  (read, ms, typical)8.5**8.5 (Read), 9.0  (Write)8.57.6 (Read), 8.0  (Write)88.5
　









Reliability









Error Rate  (non-recoverable, bits read)1 in 10^151 in 10^151 in 10^151 in 10^151 in 10^151 in 10^14
MTBF (M  hours)22.52.5221
Load/Unload  Cycles600,000600,000600,000600,000600,000600,000
Availability  (hrs/day x days/wk)24x724x724x724x724x724x7
Reliability -  Warranty (yrs)555553
　









Acoustics









Idle (Bels)2222.92.92.9
　









Power









Requirement+5 VDC, +12 VDC+5 VDC, +12 VDC+5 VDC, +12 VDC+5 VDC, +12 VDC+5 VDC, +12 VDC+5 VDC, +12 VDC
Operating (W,  typical)7.67.479.111.411.4/10
Idle (W)5.15.13.77.15.77.3/6.9
Power  consump. efficiency index (W/GB)0.000510.00064 (8TB)0.000620.0012 (6TB)0.0014 (4TB)0.0012 (6TB)
　









Physical Size









Z-Height (mm)26.126.126.126.12626.1
Dimensions  (width x depth, mm)101.6 (+/-0.25) x 147101.6 (+/-0.25) x 147101.6 (+/-0.25) x 147101.6 (+/-0.25) x 147101.6 (+/-0.25) x 147101.6 (+/-0.25) x 147
Weight (g,  max)650650650715690715
　









Environmental  (operating)









Ambient  temperature10° to 60°C5° to 60°C5° to 60°C5° to 60°C5° to 60°C5° to 60°C
Shock  (half-sine wave)707070707070
Vibration (5  to 500 Hz)0.67 (XYZ)0.67 (XYZ)0.67 (XYZ)0.67 (XYZ)0.67 (XYZ)0.67 (XYZ)
　









Environmental  (non-operating)









Ambient  temperature-40° to 70°C-40° to 70°C-40° to 70°C-40° to 70°C-40° to 70°C-40° to 70°C
Shock  (half-sine wave)300 (1ms), 150 (11ms)300 (1ms), 150 (11ms)300 (1ms), 150 (11ms)300 (1ms), 150 (11ms)300 (1ms), 150 (11ms)300 (1ms), 150 (11ms)
Vibration (5  to 500 Hz)1.04 (XYZ)1.04 (XYZ)1.04 (XYZ)1.04 (XYZ)1.04 (XYZ)1.04 (XYZ)
　









* For every write command, verify read of previous track is  completed to ensure data reliability to achieve 2M hrs MTBF enterprise-grade  reliability and quality while achieving 10TB industry-highest HDD capacity.  
    ** With SMR technology, write is always sequential in an SMR zone. Average  seek time for write is not defined.

q4r5w7y

日立HUS726060ALE610 6T 7.2K SATA 6Gb企业级硬盘行货  这个也算7k6000系列么？ 200w小时？

4ht8wmt8

7碟,看到多于三碟,我都心有怕怕,唉,现在的存储密度提不上去,只能靠增加碟子数量,一个碟子就要配两个磁头.

之前坏的硬盘,大部分是磁头碰碟子

lbi4f8

现在啥都不看就看价格，再好的企业盘NAS盘为了安全还是要备份，RAID都不靠谱。当然5400转的盘还是不碰的。

p25d4n

的确，从概率的角度来讲磁头越多，不稳定的因素就会叠加。
但是，He8系列的硬盘也是7碟的（这个系列下的6TB和8TB都是如此），但是设计MTBF却可以达到250W小时。目前市售的硬盘无出其右。说明人家的设计上还是非常有信心的。

7oggo0s

二次读写的，错误率减半

q8d0yirc

我也求低性能  高高高稳定 的机械盘

ert94fq

Ha10硬盘就是10TB的。貌似现在只对大型企业客户提供（也不知道“提供”的是硬盘呢，还是硬盘的最新消息）吧，马上2015年就要过去了。看样子是跳票了吧。

这款硬盘如果没错，也是7碟装的，速度竟然只有157/68？

q39cp50x

非也，您看Ha10的STR。另外我只是总结一下参数而已。并没有说买硬盘一定要关注传输速度

8253sey

这种的实际跟5400转没啥区别，降速的一大考虑主要还是节能