At present, the main storage carrier of NAS still relies on HDD mechanical hard disk, mainly because the mechanical hard disk can take into account the high-capacity and low-cost file storage characteristics. In addition, the current mainstream NAS system has limited disk space. To meet the user’s cloud storage application needs, then It requires a NAS hard disk with a large capacity of a single disk and a professional safety technical support.
As a traditional storage brand, Seagate also has its own series of NAS hard drives for different application requirements of NAS platforms, such as CoolWolf for mainstream NAS and CoolWolf Pro for high-end personal/small studio/enterprise NAS. Recently, the evaluation room received a new product of the CoolWolf Pro series from Seagate, the CoolWolf Pro 20TB NAS hard drive with a capacity of 20TB.
Seagate CoolWolf Pro 20TB NAS Hard Drive Features
CoolWolf Pro series is an AgileArray hard disk product optimized for NAS and can be used 24X7. It is specially optimized for NAS, supports dual-plane balance and time-limited failure recovery, and provides excellent RAID performance especially in multi-disk systems. . ,
The Seagate CoolWolf Pro 20TB is the same as the 18TB version in terms of reliability.sameIt can meet the workload of 300TB per year and MTBF of 1.2 million hours.
At the same time, the hard disk adopts a built-in rotational vibration sensor, which can detect the overall operating status of the hard disk, especially when running in a multi-bay hard disk enclosure or NAS system, it can maintain stable operation for a long time.
And the hard disk is also equipped with AgileArray technology to provide better power management, canIn a multi-disk environment, double-sided balancing and RAID optimization are realized, which ensures the reliability and scalability of the entire hard disk architecture.
In addition, Seagate also provides dedicated IHM Seagate CoolWolf health management software for CoolWolf Pro series hard drives, which can actively monitor the operating environment, find potential problems, and call adaptive algorithms to manage hard drive-related performance parameters. Early warning shows that it has a good foundation in terms of safety performance.
Seagate CoolWolf Pro 20TB hard drive out of the box
Seagate CoolWolf Pro 20TB is currently the largest product in the Seagate CoolWolf Pro series. Its model name is ST20000NE000, the hard disk speed is 7200 rpm, the cache is 256MB, and it provides 5-year warranty support.
The appearance of the Seagate CoolWolf Pro 20TB hard drive is a metallic silver top cover and a matte black bottom cover. The size is about 26.11 mm x 101.85 mm x 146.99 mm, which is not very different from ordinary mechanical hard drives.
However, as many as 10 storage discs are placed in this compact volume, which is also the industry’s first 10-disc packaging process owned by Seagate. In addition, the use of CMR traditional magnetic recording technology ensures that multi-disc stacked hard disks can be read and written. Performance can also be efficient.
The Seagate CoolWolf Pro 20TB hard drive weighs about 681.3g, which is quite textured in the hand, and the hard drive has a built-in 10-disc design, so it is not surprising to reach this weight.
The product specification label is affixed on the top cover of the hard disk. The label is printed with a detailed graphic LOGO and an English brand name in white characters on a green background. Of course, there are also the Cool Wolf graphic LOGO and a text label. Of course, it is marked in the form of black characters on a red background. The word “NAS” highlights that this is a hard disk product specially designed for the NAS platform.
The motherboard part of the hard disk is located at the end of the bottom cover. Due to the highly integrated circuit, the size of the entire hard disk motherboard is quite small. The interface between the hard disk and the platform adopts the conventional SATA 3.0 interface design, which has excellent versatility. Some NAS platforms can also be used on desktop platforms.
The hard disk main board is fixed on the hard disk bottom case by reverse installation through 6 fixing screws, and is connected with the control components inside the hard disk by cable pin contact. The important control chips and other functional components on the main board are installed in reverse It is located in the bottom case and plays a better protective role.
The motherboard uses a Smooth Viking motor servo chip plus a Seagate 500051851 main driver control chip and a Samsung DDR3L cache chip numbered K4B2G1646F-BYMA.
Seagate CoolWolf Pro 20TB Performance Review
First of all, we rely on the desktop computer platform to conduct a simple performance test of the Seagate CoolWolf Pro 20TB hard drive, and then combine it with the NAS platform to observe how it will perform on the NAS platform.
Using CrystalDiskInfo software to check the hard disk information, we can see that the firmware version number of Seagate CoolWolf Pro 20TB is EN01, the transmission mode is SATA/600, it supports ACS-4 standard, supports SMART and NCQ, and the actual available capacity of the hard disk is 18.1TB. The overall health and specifications of the hard drive are in line with the product description.
When using DiskGenius to detect the hard disk before it is formatted, you can also see hard disk information similar to CrystalDiskInfo, but DiskGenius is more inclined to refine and normalize data presentation.
HDTuneProbenchmark performance
Read performance test
In the read performance test of Seagate CoolWolf Pro 20TB hard drive, the average speed is 216.1MB/s, the maximum speed is 274.7MB/s, and the access time is 11.7ms, and the overall read curve fluctuation does not show a very large drop. , which shows that the hard disk has good stability when reading data.
Write performance test
The performance of the write test is basically not very different from the performance of the read test. The average speed is 219.0MB/s, the highest can reach 276.7MB/s, and the access time is 3.68ms. Compared with the performance of hard disk data writing The reading is better, and from the performance curve, the decline in the transition range is lower, and the stability performance is still very good.
TxBENCHPerformance Testing
The TxBENCH test software also has the function of detecting the situation of the hardware. Through the detection interface, you can learn the relevant information of the hard disk, and the content presented is similar to the information expression of CrystalDiskInfo.
Hard disk performance test
Hard disk temperature monitoring
The performance test of Seagate Wolf Pro 20TB hard drive by TxBENCH test software is more suitable for real-world applications than HDTune software. The overall test data shows that Seagate Cool Wolf Pro 20TB hard drive has good high-efficiency read and write capabilities, and the hard disk temperature control Some also have the same excellent support, and the operating temperature can be basically controlled within 40 ℃ when the hard disk is running.
NAS platform performance test
As a NAS hard disk, the performance of the test is of course based on the NAS system architecture. Therefore, for the Seagate CoolWolf Pro 20TB hard disk, we chose QNAP’s TS-262C as the test platform.
The QNAP TS-262C is equipped with Intel Celeron N4505 processor with 10nm process and 16GB DDR4-2933 memory, which can support dual hard disk installation.
The hard disk installation of the NAS basically adopts the tool-free module snap design, which is very easy to install and fix. Of course, the hard disk installation module of the QNAP TS-262C provides screw mounting holes of various sizes, which can further provide stability through the fixing screws.
When the NAS is fully equipped with dual hard drives, the weight of the entire NAS reaches about 2978.7g.
Format the two hard drives on the NAS control interface so that they can be correctly identified and used.
After the disk is formatted, the relevant parameter information of the Seagate CoolWolf Pro 20TB hard disk can be correctly identified in the control interface, such as hard disk brand, model, capacity, bus type, supported speed and operating temperature.
NAS network replication test
NAS network download test
NAS Wired USB Performance Test
In the state of the intranet, a large-capacity single file copy operation through the NAS can achieve a speed of 91.7MB/sec; when downloading the same file through the cloud download, the download speed reaches 99.7MB/sec; In the USB wired test, the read and write speeds of Disk1 are 77 and 281, respectively, and the delay is 109ms; the read and write speeds of Disk2 are 33 and 322, respectively, and the delay is 102ms.
Through the above data comparison, it can be seen that the Seagate CoolWolf Pro 20TB hard disk can well meet the read and write requirements of large data volumes for downloading and copying in NAS cloud application performance, while the USB cable test is limited by the NAS’s own hardware. The performance support on the wired side is not as amazing as the wireless side.
Summarize
Seagate CoolWolf Pro 20TB hard drive is a NAS hard drive product for high-end individuals/small studios/enterprise groups. Its read and write performance can be seen in the above evaluation, and its stability performance can be said to be very good.
It is only limited by space, time and application equipment, and some high-end personal/small studio/enterprise-level experiences cannot be expressed through pictures and texts, but you can already experience Seagate CoolWolf Pro through simple applications. The 20TB hard drive is really excellent in terms of performance as a dedicated NAS disk.
And Seagate CoolWolf Pro 20TB hard drive, as a hard drive product with 20TB large-capacity specification, not only has a large capacity, but also adopts Seagate’s industry-leading 10-disc stacking and CMR traditional magnetic recording technology.
The integration of innovative technology and mature technology lays the key to the balance between high performance and large capacity. In addition, a series of functions and software support specially designed for NAS applications, for NAS users with large capacity needs, Seagate CoolWolf The Pro 20TB is a very suitable and adequate option.
Hashtag: Seagate hard disk NAS
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