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.

oh6cxp7

为了数据安全这都不贵

ciki9fb1

东芝DT01ABA300V 3TB监控盘似乎是5940转。之前一直用的希捷Pipeline HD 5900转的

qfmtgou

He6不如He8，最高只有6T，但是都是250万小时的，7K6000是普通机械盘200万小时，但是性能更好

5dqwk0j

机械硬盘的性能参数基本都可以忽略了，因为所有参数都会被SSD秒杀，甚至是纳秒杀。

就性能来说，机械硬盘只看转速就可以了。7200的肯定比5400/5900的好。

稳定性主要看AFR和MTBF即可。

物理参数，同容量硬盘比重量，可能轻的好点。

tq34lhx

买HGST的车载系列，虽然只有500GB

phk1n4g

在快也是机械，大家现在在意的无非就是哪个硬盘更安全一点。

zhrrvx

说机械硬盘你非扯上SSD做什么？苹果A9处理器的性能参数基本都可以忽略了，因为所有参数都会被i3秒杀，甚至是纳秒杀。

zzyye1

结论是啥？。

loj5klr

纯5400的大容量盘已经很少了，大部分是变速的，还不如直接上7200