ssd m2 “Favorite Gray Computer Accessories Purchase 05” HDD (Traditional Mechanical Hard Disk) Super Complete Purchase Guide that whites can understand

ssd m2

ssd m2 “Favorite Gray Computer Accessories Purchase 05” HDD (Traditional Mechanical Hard Disk) Super Complete Purchase Guide that whites can understand

hard disk wholesaleSSD OEMssd m2

hard disk (in this case, HDD) is where users store personal filesSSD m2, currently standard capacity at least 1TB starting SSD m2, the common capacity is 1TB ~ 6TB, the larger the capacity can store more files, but the disadvantages are also obvious, the larger the capacity to store, the more the failure rate may also increase, so please pay special attention to the problem of “backup” when using large-capacity hard disks, It is common to make it a habit to “back up” important personal data to a mobile hard drive, just in case.

The hard disk used to assemble the computer is now divided into two types: SATA’s 3.5-inch traditional hard disk, and the other is the solid-state drive, which is SATA (2.5 inch) and M.2 (PCIe).

Please note: saving a disk in another place is not called backup, it is called backup to save one more.

your attention is my motivation to keep updating! It’s really important to me, and don’t forget if you think my article is well written!

Factors to consider when buying an HDD:

01 capacity

02 Brand, size, use



04 Warranty and Dispatch

05 Price

important things

06 Backup

07 What to do when buying back

price is the last consideration for me. But I know that for the average consumer, the focus should be on cost performance.

The purpose of this article is to let you understand the proper nouns of hard disks and how to choose a suitable traditional hard disk HDD in the shortest possible time, SSDs please move to my other article: “Computer Accessories Buying Guide 04″ to make the computer fly! Anyone can understand SSD shopping guide.

the most common assembly is one SSD and one HDD, as follows:

SSD 250G (C drive system disk, SSD)

. HDD 1TB (D disk data disk, HDD)

add: 1000G=1TB

1TB actually shows 930GB on Windows, this is because the manufacturer is decimal, the computer is 1024 decimal, B>KB>GB>TB, each passing one >, you can calculate the actual capacity for *1000/1024.

> The capacity of traditional hard disk HDDs in 2020 is at least 1TB (it is recommended to buy an SSD for less than 1TB), I picked four hard disks for different purposes:

home: Seagate 1TB [New Barracuda] 64M/7200 rpm/three-year warranty

NAS: Seagate 2TB [Na Neith Wolf PRO] 128M/7200 rpm / five-year  monitoring: Seagate 3TB [Monitoring Eagle] 256M/5400 rpm / three-year < protection p data-pid=

enterprise: Seagate 4TB [EXOS Enterprise Disk] 128MB/7200rpm/five-year < guarantee

capacity is matched according to your budget and needs.

If your computer will have a large number of videos and documents, it is recommended to buy a larger mechanical hard disk.

SSDs are common in 250G or 500G. (It is recommended to use more than 250G)

HDD traditional hard disks are common 1TB and 2TB. (currently at least 1TB)

hard disk capacity is enough, the current capacity of hard disks on the market has come to 6TB, but do you really need to use 6TB? If you download (and don’t delete) all day, even 100TB of your D drive will not be enough.

my opinion is that SSDs currently require at least 250G to jump, HDD 1TB is enough, if you really have a lot of data, then 2TB. (2TB is definitely enough, unless you have a large number of audio and video file needs)

general computers are not recommended to directly use

large-capacity hard disks of more than 6TB

too large capacity hard disks installed on the computer will have a higher probability of errors or failures, because the disk density is higherThis is usually applied to NAS

, the purpose is only to back up data and not keep it running

and if the data is very important, it is recommended to directly install two hard disks to share the risk, one as the main hard disk, the other is as a backup disk (you can manually back up, you can also group RAID, and a RAID article will be updated later, which can improve data reliability and increase the speed of the hard disk).

(please note that saving a disk in another place is not called backup, it is called backup to save one more)

> important data must be backed up! The hard disk that stores important information must be checked regularly! When your computer slows down, pay attention!

Some hard disks are still alive, but there are bad tracks in them (or other reasons), resulting in super slow running, and they will (maybe) hang up completely another day, really spread the risk (protect data), and back up with cloud or mobile hard disks.

■ There are two suggestions for the hard disk grouping:

[The first type] The system and the game board are the same

.250G SSD (C disk system + game board)→ can be upgraded to 500G or 1TB

1TB HDD (D disk data disk) →

can be upgraded to 2~4TB

↑ This is the most common group, if 1TB is not enough, it can be upgraded to 2TB or more.

If you need to download, you can also add another 1TB as a download disk.

[second] system is separated from the game disc, equipped with 2 SSDs or partitioned

.250G SSD (C drive system disk) → can be upgraded to 500G

.500G SSD (D disk game board)→ can be upgraded to


.1TB HDD (E-disk data disk)→ can be upgraded to 2~4TB

↑The advantage of this combination method is that if the game board fails, the computer can also be turned on.

I think it’s okay as long as it’s a “big brand” you’ve heard.

At present, there are three main brands of hard disks: Seagate, WD (Witten), and Toshiba (Toshiba). These three are big brands, you can buy and use them.

[it seems that you can only find these labels]


if it is not stuffed, do not choose the 2.5-inch HDD

Generally, the 3.5-inch hard disk itself is not a high-priced product (currently relatively cheaper)

but there is no need to seek the ultimate low price here and sacrifice speed, performance, durability<p< p=””> </p<>

usehousehold type (three-year

warranty): Personal assembly computers are generally used for home use.

enterprise type (five-year warranty): The advantage of enterprise type is five-year warranty, and the materials are better.

surveillance type (three-year warranty): hence the name, this is for monitoring hosts.

NAS type (three-year warranty): This is for NAS (network storage server).

you can also install surveillance or NAS hard disks in general computers as data disks, but it is not recommended that hard disk manufacturers specially design for different purposes, and the focus is also different.

Each hard drive will have its own name according to its use, as follows

WD Home grade:

1. Blue Label-Blue (global 2-year warranty), in which only the speed of the version below 1 TB is 7200 rpm, and the version above 2 TB (inclusive) is actually modified from the old energy-saving hard disk Green Label-Green, so the speed is more than 5,000; Also because of the particularity of products below 1 TB, it is also jokingly called “blue label”<

2. Black Label-Black (global 5-year warranty), mainly for e-sports players, art creators and workstation users, the most obvious feature of the hardware should be the so-called “dual processing chip”, but the performance will not be as literal as 2 times…

for NAS:

1. Red Label-Red (global 3-year warranty), minimum capacity 1 TB to jump, all products are 5400 rpm, but there are many disaster documents that can be found on the Internet, and purchasers can study and then decide to < data-pid=

2. Flagship Red Label – Red Pro (global 5-year warranty), the minimum capacity starts from 2 TB, the whole line of products are 7200 rpm, in addition to the more shockproof design, it can also be used in NAS that supports more hard disk slots (officially announced that Red can be used for 1~8 slots, Red Pro can be used for environments with a maximum of 24 slots), but this series now has “very low” visibility on the channel

for monitoring:

purple-purple (global 3-year warranty), the old product line is 5400 rpm, some new models of high-capacity models only have 7200 rpm products (also have a higher MTBF, like SkyHawk AI, the same as the SkyHawk AI strengthens the support for AI monitoring)


 Ultrastar DC (global 5-year warranty), which is an enterprise product that follows the original HGST, and before that, there have been enterprise-level hard disk products such as gold standard-Gold, yellow label-Re, Se, etc., which are positioned


 home grade:

1. Barracuda (global 2-year warranty), detailed models are quite often revised (so sometimes you can see new and old models sold on the channel together), new models with a capacity of 2 TB or more have been introduced into SMR technology

2. Barracuda Pro (global 5-year warranty + built-in 2-year original data rescue service), theoretically it is still a diehard PMR, but the capacity sold on the channel is 6TB starting from the jump, which is not as close to the people as Exos for storage applications (in fact, the lower capacity model is out of the original factory, but it has not been introduced); Like the black label, the target is included in the art creator and workstation environment


1. IronWolf (global 3-year warranty), minimum capacity 1 TB start, lower capacity is 5900 rpm, higher capacity is 7200 rpm design

2. Cool Wolf Pro-IronWolf Pro (global 5-year warranty + built-in 2-year original data rescue service), minimum capacity 2 TB start-up, like Red Pro, the whole line of products are 7200 rpm, can support up to 24 slots of NAS environment


Cool Eagle-SkyHawk (global 3-year warranty)

2. Cool Eagle AI-SkyHawk AI (global 5-year warranty + built-in 2-year original data rescue service), 8 TB starting capacity is slightly less people-friendly, for AI monitoring This piece is specialized, equivalent to the annual read and write volume of the Exos series (550 TB / year) is a major advantage over similar products


 Exos (Global 5-Year Warranty), which can be roughly divided into E series and X series; The X series is a large-capacity helium-filled hard disk, starting from 8 TB, and the E series is a non-helium-filled hard disk, which can be divided into 7E2/7E8 (from the Enterprise Capacity HDD series, according to the capacity size, both 7200 rpm) with high visibility and 5E8 (from the Archive HDD series

hybrid hard disk (8G SSD+HDD) with high visibility.

Fire Barracuda: It’s good for PS4 consoles, it’s not recommended for home use, it’s better to buy an SSD directly.



hard disk name is very straightforward, home is called home disk, enterprise is called enterprise disk, monitoring is called monitoring disk, it is easy to understand, there is only the following one with a name.

for NAS:

N300 (global 3-year warranty)

There are three factors that affect performance: Speed, cache, PMR and SMR

the common speed is 5400 rpm and 7200 rpm, the faster the speed of the hard disk.

 common home hard disk speed is 7200 rpm, cache is more than 64MB

cache is common 64MB, 128MB, 256MB, the more cache, the better

common enterprise hard disk speed is 7200 rpm,

The cache is more than 128MB

pure storage SMR is sufficient.

If you have requirements for speed, reliability, and stability, it is not recommended to choose SMR, it is recommended to find the

 SMR details:

※SMR hard disk cache is larger than the general, the following is a simple list of some SMR hard disks

small hard disks are generally PMR

to put it simply, most of the current hard disks are guaranteed for three years, while enterprise hard disks are guaranteed for five years.

hard disk warranty is to protect the hard disk, not to protect the data in the hard disk, so the focus is not on the length of the hard disk warranty, but usually to back up personal important data, rather than relying on other people’s data recovery.

general hard disk failure The original factory is not repaired, are directly replaced with good products or new products, for example, if your 1TB hard disk fails, the original factory is to replace a 1TB hard disk for you.

Please note that most people buy hard disks to see the brand, I am not, I am mainly warranty maintenance, this is because no matter what brand of hard disk you buy, there is a chance of failure, and no manufacturer dares to guarantee that there will be no failure. Therefore, what I value most is whether the fault repair in the warranty is convenient and fast.

Pay attention to the reviews when buying products.

as long as the capacity, speed, and cache of each brand of hard disk are the same, everyone’s price is similar, with the common common household hard disk (three-year warranty) for 1TB about 500 yuan, 2TB about 1000 yuan. You can note that if it is an enterprise (five-year warranty) hard drive is almost twice as expensive. In terms of cost performance, of course, the buyer’s hard disk is more cost-effective.

here are two pictures of friends:

the focus is still on its performance.

In addition to traditional hard disks and SSDs, there are two types of hard disks:

1, Seagate hybrid disc (fire barracuda) contains 8G SSDs and HDDs (less commonly used)

This is Seagate’s special technology, which theoretically allows the drive to automatically determine which data you use most often in SSDs. As a result, you can dramatically improve boot time, application loading, and overall system responsiveness. It sounds good, but in actual use, I think this 8G SSD is really not obvious, it is better to install an SSD directly to save trouble, and the speed has increased significantly.

2, Intel Optane Memory: hard disk accelerator (rarely used)

This is a new product launched by Intel in 2017. This thing looks like an M2.SSD, plus it can increase the read speed of the hard disk, and the upgraded hard disk has a noticeable feeling, but please note that if you want to be fast, why don’t you simply use the SSD directly?

hard disk failure is not terrible, data is missing is terrible! Computer parts failure is amazing, but what about hard disks? In a computer, the most expensive part is definitely not a hard disk, but the most important part is definitely a hard disk, the hard disk is hung, and the data is not backed up, you are determined to live better than death! Usually, you have to get used to making data backup cards.

Please note: saving a disk in another place is not called backup, but saving one more is called backup.

I recommend that everyone should buy a portable hard disk for data backup, I think this is the safest, easiest and cheapest method. (Usually do a good backup, lest the hard disk suddenly go away, you crash crazy)

As for the file backup software, it is recommended that you use “SyncBackFree”, the reason is that there are Chinese, the program is small, and the operation is easy. I myself use this set of backups, and it has three backup modes: backup, synchronous backup, and mirroring. Personally, I’m used to mirror mode.

or RAID with two drives.

reminder again: check regularly! Back up regularly! When your computer slows down, pay attention!

The best way to antivirus is actually to back up

the best hard drive health detection tool is: CrystalDiskInfo

if your hard drive is WD, you can also use Data Lifeguard Diagnostic for Windows

Buy it back, plug it in, the first thing is to go to “Disk Management” to set the GPT or MBR format.

Please use MBR for hard disks under 2TB, because MBR supports up to 2TB, if it is a hard disk of 3TB or more, please select GPT disk to support.

welcome to point out my problem!

codeword is not easy, give a thumbs up!

▼ Selection and recommendation of other computer components:

1 super brain! Ultra-full CPU purchase guide that whites can understand

>2 stability trumps everything! Ultra complete motherboard purchase guide that whites can understand

>3 a graphics card super complete purchase guide that whites can understand


5 make computers fly! Ultra-full SSD purchase guide that whites can understand

6 HDD (traditional mechanical hard disk) ultra-complete purchase guide that can be understood by whites (this article)

7 feel the power of your heartbeat! Ultra Full Power Selection Guide that whites can understand

8.DVD/Blu-ray burner


10. CPU cooler

Source: hard disk wholesaleSSD OEMssd m2