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The Ultrastar DC HC520 12Tb hard drive is specially designed for professionals for use in data centres. This 3.5" enterprise hard drive is perfectly suited for server use with its RAFF anti-vibration technology and 550 TB/year load.
3.5" 12 TB 7200 RPM 256 MB SATA 6Gb/s 512e server hard drive (bulk)
Designed for data centresThe Ultrastar DC HC520 features multi-axis shock sensor technology that automatically detects and compensates for even the smallest shocks to protect the data stored on the Ultrastar DC HC520, and is equipped with RAID-specific features such as error recovery time that is reduced through the hard drive's error recovery processes. Ramp load/unload technology moves the recording heads away from the platters when the drive is not in use and when powering down, ensuring less wear and tear on the recording heads and media.
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General information |
Product name |
Western Digital Ultrastar DC HC520 12 TB (0F30146) |
Brand |
Western Digital | |
Model |
0F30146 | |
Main characteristics |
Interface with the computer |
Serial ATA 6Gb/s (SATA Revision 3) |
Hard drive format |
3" 1/2 | |
Capacity |
12 TB | |
Performance |
Rotation speed |
7200 RPM |
Cache size |
256 MB | |
Recording technology |
PMR | |
Design |
Hard drive type |
HDD (Hard Disk Drive) |
Use |
for server | |
Physical characteristics |
Width |
101.6 mm |
Height |
26.1 mm | |
Depth |
147 mm | |
Weight |
660 g | |
Warranties |
Commercial warranty |
Seller 3 years |
Legal warranty |
See terms & conditions |
Product referenced on 21 Nov 2018
I received it quickly as usual, it heats up less than the 18 and 20TB versions (45° vs 52°, on a usb dock so not ventilated). I've been using my LDLC usb dock for several years now. Good speeds 155MB/sec on average with peaks at 201MB/sec. It makes a bit of noise (it scratches a bit at times) but it's still reasonable.
Superb performance for this drive (210 MB/s write on large files). The large buffer allows me to make copies from several different sources in parallel while maintaining this throughput overall.
Extremely competitive price (37.5€ per TB).
Although I can't back it up personally yet (I've only had the drive for a month), in theory the reliability should be excellent:
- 5 year warranty.
- Announced MTBF of 2.5 million hours.
- Designed by HGST (the most reliable drives according to Backblaze reports)
The only downside: The drive is noisy when reading/writing.
This is hardly a criticism of a datacenter drive but it still prevents me from giving it a 10/10.
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