Page 3 : Under The PCB, Testing The 10TB WD Red NAS Drive
What’s Under The PCB?
Western Digital has a penchant for keeping all surface-mounted components on the reverse side of the PCB – to prevent static damage and to allow for better cooling. The PCB is protected by a thin foam cutout on the chassis side, with a thermal pad to help transfer heat from the HDD controller to the hard disk drive chassis.
Unfortunately, we can’t make out the hard disk drive controller Western Digital used, but we can see that it uses the ST Microelectronics L7232 motor drive controller, which features their proprietary Smooth Drive pseudo-sinusoidal digital drive technology.
The 10TB WD Red (WD100EFAX) NAS drive boasts a large 256 MB SDRAM cache, courtesy of an EtronTech EM6GD16EWXC-12H chip. This is a DDR3-1600 SDRAM chip with 8 memory banks and timings of 11-11-11. This gives it a peak transfer rate of 400 MB/s.
Finally, the 10TB WD Red (WD100EFAX) NAS drive has two shock sensors that allow it to better detect shock and vibration events, and dynamically adjust the flying height of the read/write heads to avoid head crashes.[adrotate group=”1″]
Testing The 10TB WD Red NAS Drive
|Processors||Intel Core i7-2600K|
|Memory||Four Kingmax 2 GB DDR3-1333 modules|
|Graphics Card||NVIDIA GeForce GTX 1060|
|Hard Disk Drives||10 TB Western Digital Red
8 TB Western Digital Gold
6 TB Western Digital Black
6 TB Western Digital Red
6 TB Western Digital Green
4 TB Western Digital Red Pro
4 TB Western Digital Re
4 TB Western Digital Black Gen. 2
4 TB Western Digital Red
3 TB Western Digital Red
|Operating System||Microsoft Windows 7 64-bit
Microsoft Windows Vista 32-bit
We tested in both Windows 7 and Windows Vista, with the latest updates. We chose to use IO Meter 2008 as well as our “old faithful”, WinBench 99 2.0, with the following tests :
- Platter Data Transfer Profile
- Business Disk WinMark 99
- High-End Disk WinMark 99
- Disk Transfer Rate (Beginning)
- Disk Transfer Rate (End)
Business Disk WinMark 99 is a real-world simulation based on three office application suites – Microsoft Office 97, Lotus SmartSuite and Corel WordPerfect Suite 8, as well as a web browser, Netscape Navigator. They are quite dated, but should still reflect the usage patterns of users in an office environment using such applications. The test runs through a script that keeps multiple applications open, while it performs tasks that switches between those applications and Netscape Navigator. The result is the average transfer rate during the script run.
High-End Disk WinMark 99 is a real-world simulation based on AVS/Express 3.4, FrontPage 98, MicroStation SE, Photoshop 4.0, Premiere 4.2, Sound Forge 4.0 and Visual C++ 5.0. However, it differs by running the applications serially, instead of simultaneously. There are individual results for each application but in this comparison, we will be looking only at the weighted average score, which is the average transfer rate during the tests.
Unfortunately, WinBench 99 is not fully compatible with Microsoft Windows 7, registering a SetFilePointer error in the Disk Access Time test. So, we were not able to obtain any Disk Access Time results.
In addition, it would keep crashing if the hard drive was tested with a single partition. This is likely due to a limit on the size of the partition that is supported by WinBench 99. We came up with a workaround by dividing the hard disk drive into 5 partitions of equal sizes. We then tested each partition individually and averaged the results.
Next Page > Usable Capacity, Platter Profile, Operating Temperature
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