This paper will briefly introduce the functions and characteristics of NAS hard disk/server, and explain how to choose products according to your own needs. In the second half of the article, we will also recommend several NAS hard disks for your reference and purchase. Let's take a look at some innovative designs!
Understand NAS
"n as hard disk" is also called Wi-Fi mobile hard disk and wireless network hard disk, and NAS in the name is the abbreviation of "network attached storage". Hard disks with NAS can be connected in series with computers, tablets and mobile phones through Wi-Fi or other Internet access methods, which is convenient for users to back up data at any time.
NAS hard disk can not only be used as a backup hard disk for business data, but also be used to save family photos, movies and music, or to back up the data of mobile phones and tablets. Some goods can even automatically back up the data in the computer when they are online, so that important data will not be easily lost.
Although the main customers of NAS hard disks in the past were company line numbers or government agencies, the price was very high. But now there are many household products with reasonable prices and large capacity on the market. If you often feel that the capacity of mobile phones and laptops is not enough, you can consider buying a NAS hard disk!
Key points of purchasing NAS hard disk/server
After we have a preliminary understanding of the uses and functions of NAS, let's take a look at what benchmarks we should use when choosing this kind of goods and what points we should pay attention to!
Confirm whether the device contains a hard disk.
In fact, this kind of wireless storage device can be divided into two types according to the existence of hard disk, one is "NAS hard disk" with its own hard disk, and the other is "NAS network storage server" with additional hard disk. This paragraph will explain the difference between them.
NAS hard disk: simple initial setup and built-in storage space.
NAS hard disk can be used without complicated settings, and the built-in hard disk does not need to buy additional storage space, so the overall cost will be more cost-effective than buying a network storage server. However, although the NAS hard disk is relatively cheap, the internal hard disk and fan cannot be repaired or replaced after being damaged, so it is not recommended to store business data. It is more suitable for backing up non-commercial data such as life photos, audio-visual multimedia and private files.
NAS network storage server: High freedom and functionality, need to buy another hard disk.
NAS network storage server (hereinafter referred to as NAS server), as its name implies, only contains the functions of network server, and has no built-in hard disk. So you need to choose another hard disk and set up your own online content, which is slightly more difficult to use than NAS hard disk.
However, the functions of NAS servers are rich and stable. When the external hard disk and fan are damaged, you can buy new products and replace them yourself. However, because there are more possibilities, if there is not enough knowledge in related fields, I am afraid it is difficult to realize all the advantages of NAS servers, and it is not suitable for beginners.
According to the importance of data, decide whether to carry the "RAID" function.
The so-called "RAID" is the abbreviation of redundant array of independent disks, which is translated as "disk array" in Chinese, and it is a technology to manage multiple hard disks through calculus. Because all the disks in the array work together when reading and writing, the processing performance is more powerful than a single hard disk. According to the partition method, RAID can be subdivided into several modes, and the common modes are listed below:
RAID0
Combining the space of more than two hard disks into one storage space, the hard disk space after the array becomes larger, and it can continue to work with high performance, but once one hard disk is damaged, all data will be lost.
RAID 1
The hard disk storage space is independent, and the system will automatically save the same data image to the hard disks of other arrays; In other words, every hard disk has a complete data backup. Therefore, when one of the hard disks has a problem, the data can still be extracted normally, and the data security is high.
RAID5
Must have at least 3 hard disks, and have the functions of RAID0 and RAID 1 at the same time, so as to meet the needs of large capacity and small budget while taking into account data security.
Because most products equipped with RAID are not cheap, it is recommended that you choose NAS products according to the importance of data. If the main purpose is to back up important business data and company files, RAID 1 or RAID 5 with high security is more suitable; If you want to improve the reading and writing speed and storage capacity, choose RAID0.
Confirm the number or capacity of hard disks that can be loaded.
When purchasing a NAS server, you need to pay attention to the number of hard disks that can be installed in the device. It is customary in the industry to say "Bay", 1 Bay is 1 Bay, 2 Bay is 2, and so on. According to the parameters of compatible hard disks, the number of installations and the way of space allocation, the overall storage capacity will be different.
As for the capacity of NAS hard disk, it depends on the built-in hard disk. Most cheap products only carry 1 hard disk, so the overall capacity is generally smaller than that of NAS servers. However, some NAS hard disks also have the style of multiple hard disks, or have the function of supporting other external hard disks, and there is still a chance to expand the storage capacity. If the backup data is huge, you must pay more attention to this detail.
Preference is given to models supporting multimedia.
Although NAS can be connected in series with computers, mobile phones, tablets and other devices, some devices or file formats cannot be read and written normally. The following will explain how to confirm the applicable scope of NAS products to help you evaluate the advantages and disadvantages of products.
With "DLNA" authentication, it is more convenient to transmit data.
"DLNA (Digital Life Network Alliance)" is an alliance organization composed of manufacturers of consumer electronic products, mobile phones and computers. Its purpose is to establish a set of industrial standards that facilitate the interconnection of various devices, and it is an important cornerstone for the interconnection of computers, tablet computers, mobile phones, game machines and other devices.
Goods passing DLNA can be connected in series with various DLNA certified goods by wired and wireless means. Although most electronic goods on the market now have serial port function, there are still many exceptions; Therefore, before purchasing NAS-related products, please confirm whether the products to be launched correspond to DLNA, so as to avoid discovering that many devices cannot be used afterwards.
Transmission of copyrighted content requires "DTCP-IP" or "DTCP+".
At present, many audio-visual materials or files will be encrypted by "DTCP-IP" or "DTCP+" protocol, and transmission equipment needs to support these two kinds of decoding to transmit copyrighted data. For example: self-recorded TV programs and movies, music files of singers or bands, e-books and other content.
Support the right of "DTCP-IP" to open encrypted files for individuals at home; Commodities supporting "DTCP+" provide the right to transmit copyrighted data through the Internet. In addition, there are electronic devices that can support the above two protocols. Please select the parameters according to your own needs.
Understand the characteristics of each brand.
If you don't have any special ideas about the parameters, you might as well start with the brand! Here are a few famous brands, hoping to help you make a decision.
Buffalo is suitable for beginners.
The NAS produced in Buffalo mainly comes with its own hard disk, and the setting interface is simple and easy to operate, which is very suitable for novices who use NAS for the first time. There are low-cost models and large-capacity models that are close to the people, and most of them can support multimedia interconnection transmission, and the choices are quite diverse.
"Synology" with NAS server as the main force
Synology is recognized as a popular brand of NAS in the industry. There are various commodities and rich choices, and most areas provide perfect after-sales service, so that consumers can enjoy the most perfect protection. Because most Synology products do not contain hard disk, the price is relatively cheap and the functional stability is high, so it is recommended to people who use NAS servers for the first time.
Confirm whether the after-sales service is perfect.
When purchasing this kind of computer interface equipment, you must confirm whether the after-sales service of the goods is perfect in advance. When selecting goods, please pay attention to whether there is a channel to contact customer service personnel on the outer packaging or instructions of the goods, and whether there is a shelf life, so as to ensure that the goods can be properly handled when they are defective or accidentally damaged.
In addition, since most NAS are foreign brands, you should also pay attention to whether NAS supports Chinese before purchasing, so as to avoid finding garbled codes after transferring files!
Top ten recommended popularity rankings of NAS hard drives/servers
According to the above shopping spots, we compared the capacity and built-in protocols of products on the market, and chose 10 NAS hard disk /NAS server to recommend to you, hoping to help you find the ideal product that meets your needs.
10, PD800 wireless hard disk with big mouth
Portable backup, one machine is enough.
The PD800 is only 365g, which is very small. It can replace notebook computer, meet all your backup needs, and avoid data loss caused by memory card loss. Double backup keeps you ready. The double display screen displays the copy progress in real time, and the copy speed reaches 140 m/s, so you can instantly enter the mobile APP and watch it anytime and anywhere.
The big mouth disk has been committed to improving the security and convenience of user data backup for many years. Since the launch of PD600, PD series has been well received by film friends. The PD800 with big mouth has better backup performance. With solid-state hard disk, the backup speed can reach 140M/S, and the mechanical hard disk can reach110m/s. ..
9. Huayun storage AS6404T 4 disk NAS
4Bay super capacity, compound convenient system backup is safer.
Huayun's enterprise-specific solution adopts Intel Xeon E series, big data-class processor, professional performance and advanced security functions; Including data automatic encryption, online encryption, firewall and IP blacklist/trust list setting of web pages. In addition, the file path and permission settings will be completely preserved during backup, which is more efficient when rebuilding the database.
In addition, there are many special functions such as painless system migration, EZ Connect rapid transmission, and health check of Dr.ASUSTOR system, which is quite reassuring.
8. Polar space private cloud Z4
Ultra-quiet fan design, quieter
Equipped with ZOS operating system, an APP can solve the complex operating functions of NAS, and mobile phones, computer clients, tablets, televisions and web pages all support access.
The fast connection function can be connected through P2P, data center, etc. , without any additional configuration or third-party software, and without applying for external network IP. It also supports a variety of home smart devices through a variety of protocols.
7.QNAP TS-453 dmin
Equipped with PCIe expansion slot, snapshot system is helpful for data recovery.
The rear of the fuselage is equipped with PCIe expansion slot, which increases more application potential; You can not only install QNAP expansion card to add SSD cache and 10GbE network, but also connect the sound source line of microphone and speaker to output or input audio, which is very suitable for playing audio and video in series with TV. Combined with snapshot system, data and system status can be recorded in real time, and normal work can be resumed quickly after an accident.
6. Master F4-42 of Tiewei Matera1
Special for enterprise-level large-scale backup, with built-in anti-virus automatic scanning.
In terms of hardware, it has a powerful 4bay hard disk slot and supports two 10GbE ports to meet the needs of mass storage and mass transmission of enterprises. The software not only uses the Intel Pentium processor, but also is equipped with professional anti-virus software, which automatically scans for viruses whenever writing files, and can intercept harmful files in real time.
In addition, in addition to its own NAS function, Tieweima also integrates the current mainstream cloud platform. As long as the data is put into the NAS folder, even if the hard disk is not around, you can access the data remotely at any time through the above platform.
5.asustor AS5202T
A new generation of dual-core processors, a good helper for real-time backup
Asus Huayun is a subsidiary of ASUS, which specializes in developing various high-performance NAS products. This NAS server is classified as "Racing Reserve Cloud" series, which mainly uses Intel Celeron J4005 ultra-high performance processor. After purchase, the built-in memory can be upgraded from 2GB to 8GB as needed, and the ultra-high processing efficiency is unparalleled.
In addition, through the dual-hole 2.5GbE network port, files can be transferred at a speed of 5Gbps. It can back up high-quality movies or live scenes on video websites in real time, especially suitable for gamers and anchors.
4.NEWQ smart phone treasure wireless mobile hard disk K 1 (I screwed up and Bian Xiao thought it was easy to use, so I put it up).
SD card wireless transmission, hand-held mini size.
If you just want to back up photos or materials in your mobile phone, this ultra-mini wireless mobile hard disk will be the most economical and cost-effective choice. Except the price in 200 yuan, the whole mobile hard disk is less than the size of a palm, which is almost the same as the traditional mobile hard disk. It can be carried in a pocket or a small bag.
Because the internal storage space is a microSD card, you need to buy additional memory, but the overall cost is more cost-effective than buying regular NAS equipment, and it is recommended for users with limited budget.
3. Western Digital (WD) My Passport wireless solid state drive
Equipped with SSD hard disk, the reading and writing speed is as high as 390MB per second.
In addition to the USB3.0 port, it also has a built-in solid-state hard disk, which makes the reading and writing speed faster, and it can perform very well in both wired and wireless transmission. When connected to USB, it can transmit 390MB per second, easily back up high-definition audio and video files, stream 8 high-definition movies and connect 8 devices at the same time, so many people can enjoy stress-free.
In addition, the shell also has a reinforced protection design, which can reduce the impact from the outside, and even if the hard disk vibrates, collides and falls (within the range of 1m) during use, it can ensure that the data is not damaged, which is very suitable for readers who are engaged in extreme sports and need to record while moving.
2.Synology Qunhui Technology DiskStation network storage server DS 120j.
Support a variety of protocols and browsers, full-featured home models.
Although this NAS server can use a hard disk, its maximum support is 16TB, which is more than enough for ordinary families. The software not only supports HTTP-related protocols, but also supports network file system protocol (NFS), iSCSI and other protocols, allowing various devices to choose the most suitable storage and transmission mode according to the online environment.
In addition, this server also supports the access of major browsers and has codes in 20 languages, including traditional Chinese, so you don't have to worry about files becoming garbled.
1, Western Digital (WD) My Passport Wireless Pro
Built-in SD3.0 card reader, 10 hour long battery life.
Specially designed for location shooting and travel photography enthusiasts, built-in SD 3.0 card reader, as long as you can easily insert the camera memory card, you can copy all files with one click, so that you can easily back up outdoors. The battery capacity is 6400mAh, which can be used continuously 10 hour. Coupled with the parameters of USB3.0 and reasonable price, it has become a competitive product.
In addition, you can use My Cloud City developed by the original factory to upload the image files on your hard disk directly to the Creative Cloud authorized by Adobe, so that you can turn photos or images into artistic creations with your tablet.
abstract
Although NAS is not so popular in the market at present, and the price is more expensive than the traditional external hard disk, with the increasing dependence of modern people on electronic products, I believe that more competitive products will be born in the near future. Let's look forward to this prospect!
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