In the PC we purchased, the hard disk does not account for too much price ratio. However, the hard disk acts as a role of storage data in the computer, which is well known that the value and importance of the data itself cannot be measured, so the hard disk has become Core accessories in your computer.
Today, the hard drive market is divided by 5 manufacturers such as "Seagate, Hitachi, Maxtor, Western Digital and Samsung". Since the manufacturer is different, and as the hard disk is constantly being new, it is more difficult to mark the number. As DIYER, we usually notice the main parameters such as capacity, speed, and cache when buying hard drives. However, these parameters are not significantly identified by these necessary data on the hard disk, just use a string of specific The so-called numbers such as digital symbols are indicated, so we must correctly understand the hard drive. Understand the performance of the hard disk is really not an easy thing, so many DiYer has become a knife with unscrupulous JS.
To know, each hard drive number has its own specific meaning. Through these numbers, we can understand the performance and indicators of the hard disk, which is very helpful to buy your own favorite hard drive for our Diyer's lie. The author will introduce the hard disk number law of each manufacturer in the market's mainstream hard drive products.
Seagate introduction to one of the brands of China
First, Seagate
Seagate Technology is the world's largest disk drive, disk, and read-write magnetic head manufacturer. The company has always been hard disk suppliers of large users such as IBM, Compaq, Sony. The company's strength can be seen! Seagate is one of the first hardware brands entering the Chinese market, and there is also a considerable status in the SCSI market. 3D protection technology and Softsonic noise reduction technology are the characteristics of Seagate products, used to improve product security and reduce work noise. In the mainstream desktop market, the Seagate Cool Fish series is more concerned, and this series of products have a smooth overall performance, and the market has a higher awareness. Due to Seagate adopted a number of agents parallel sales channels, retail prices were also more advantageous. Overall, the cost-effective cost of the Seagate hard drive is good, and the shipments in the hard disk retail market are also large.
Key tricks Seagate hard drive model identification method
The number of Seagate hard drives is relatively simple, and its identification method is: "ST hard disk size capacity master ID subdigan interface type".
In order to understand another, simple representation is: ST "X, XXXX, XX, XXX", that is, its hard disk number can be divided into four parts.
First, "ST" represents "Seagate", which is the product of Seagate.
Then "X" of the first portion is the shape and size of its hard disk. "1" represents a full high hard disk of 3.5 inches and a thickness of 41mm; "3" represents a half-high hard disk of 3.5 inches and a thickness of 25mm; "4" represents a hard disk of 5.25 inches, thickness of 82mm; "5" indicates size of 3.5 inches Hard disks having a thickness of 19 mm; "9" is represented as a hard disk of a size of 2.5 inches.
The fourth "x" of the second part is a capacity of the hard disk, usually consists of 3 to 4 digits, and the unit is GB. Such as: "1600" means that the hard disk is 160GB, while "400" or "800" indicates that its capacity is 40GB or 80GB.
The two "X" of the third part is the hard disk flag, which is made by the main flag and sub-sign. The previous figures are the main logo. In the IDE hard drive in Seagate, the number of discs of the hard disk is the number of discs, such as the number "2", indicating that the hard disk uses 2 discs. In the SCSI hard disk of Seagate, its master identity refers to the speed of the hard disk. There is of course the owner of course, and the latter number is the deputy identifier. It is only when the primary identification is the same or invalid, the sub-identification is meaningful. It generally represents the performance and algebra of the hard disk, the greater the number, the higher the algebra, the better performance, the more new drives. The three "X" of the third part mainly composed of 1 to 3 letters, indicating the type of hard disk interface. The general desktop IDE hard drive is simpler, but if the current and early SCSI hard drives are included, their meaning has become more complicated.
"A" shows the interface for ATA UDMA / 33 or UDMA / 66 IDE
"AS" is expressed as the interface of Serial ATA150
"AG" is an interface for ATA-specific ATA for laptop
"N" is expressed as a 50-pin Ultra SCSI interface, with a data transfer rate of 20MB / s
"W" is expressed as 68-pin Ultra SCSI interface, its data transfer rate is 40Mb / s
"WC" is expressed as an interface for 80-pin Ultra SCSI
"FC" is expressed as fiber, providing data transfer rate up to 100MB / s, and supports hot plug
"WD" is expressed as 68-pin Ultra Wide SCSI interface
"LW" is expressed as 68-pin Ultra-2 SCSI (LVD) interface
"LC" is expressed as an 80-pin Ultra-2 SCSI (LVD) interface
We use the Seagate Cool Fish Hard Drive "ST3160023AS" as an example, we can know that the hard disk is a half-high hard disk produced by Seagate's 3.5-inch thickness of 25mm, which uses 2 hard disk discs, the total capacity is 160GB of Serial ATA150. Also, if you see the characters such as "7200.7" on the hard disk, this is the hard disk series of the Sakagi newly launched single-disc capacity; see "Barracuda 7200.7 Plus" and other characters, we learned this series The product is a high-end product with 8MB cache, Serial ATA 150 interface, or Ultra ATA 100 interface.
Daily Jindelances Repeated the advanced technology of IBM hard drive
Second, Hitachi
After the Hitachi IBM's hard disk department has been combined, Hitachi has undertaken IBM hard disk technology. It is well known that IBM is a global memory of the global memory, many breakthrough memory technology in history is all in IBM, such as the most typical modern hard disk (ie "Wen's" hard disk) protected by IBM. Of course, "MR (magnetoresistance)", "GMR (GMR)" magnetic head is widely used, and its famous "Pixie Dust" technology is also developed by IBM. Although the current domestic market is general but its powerful background and strength, no one can ignore.
Key Truals Hitachi 180GXP Series Model Recognition Method
The Hitachi hard drive has 180gxp and 7k250 two series, so I have to identify the number complicated. The 180GXP series takes the IBM hard drive number. Its recognition method is: "IC disk size hard disk height capacity interface type series model speed cache capacity"
Simple representation is: IC "XX, X, XXX, XX, XX, XX-X", which can be divided into seven parts.
"IC" is a product of IBM.
The two "X" of the first portion indicate the shape and size of the hard disk. "35" indicates 3.5 inches (88.9 mm), "25" represents a 2.5-inch (63.5 mm) hard disk product.
The "X" of the second portion is a height of the hard disk. "L" represents 1 inch (25.4 mm), "T" represents 0.49 inches (12.5 mm), "N" represents a 0.37-inch (9.5 mm) hard disk product. Three "X" of the third part indicate the capacity of the hard disk, and the unit is GB. Such as "180" is that the hard disk is 180GB, "080" is 80GB.
The two "X" of the fourth part indicate the type of hard disk interface.
"Av" is expressed as an ATA interface
"UW" is expressed as an Ultra160 SCSI 68-PIN WIDE interface
"UC" is expressed as an interface for Ultra160 SCSI 80-Pin SCA
"XW" is expressed as an Ultra320 SCSI 68-PIN WIDE interface
"XC" is expressed as the interface of Ultra320 SCSI 80-Pin SCA
"F2" is expressed as FC-Al-2 (2 Gbit) interface
The two "x" of the fifth represent the model of the hard disk product line. Its "ER" indicates the Deskstar 60GXP series, "VA" means the Deskstar 120GXP series, "V2" represents the Deskstar 180GXP series.
The two "X" of the sixth part is expressed as the speed of the hard disk, and the unit is RPM / min. Its "04" is expressed as 4200 rpm / min, "05" is represented as 5400 rpm / min, "07" is represented as 7200 rpm / min, "10" is represented as 10000 rpm / min, "15" is represented as 15000 rpm / min .
The "X" of the seventh part indicates the capacity of the hard disk cache, starting from Deskstar 180GXP. "0" is expressed as 2MB cache, "1" is expressed as 8MB cache. Among them, the 60GB of the 60GB of a disc is used to cache 2MB and 80GB and 120GB products, 2MB and 8MB of the 80GB and 120GB products are used, and the 180GB of products that use three discs is 8MB, pay attention to distinguishes when purchased.
Take the number "IC35L180AV207-1" as an example, we can know that the hard disk can know the hard disk is 3.5 inches, high-inch hard drive produced by IBM, with a total capacity of 60GB, using the Ultra ATA interface, the product of the Deskstar 180GXP series, The speed of the speed is 7200 rpm / min, with an 8MB cache.
Key tricks Hitachi 7k250 series model identification method
The Hitachi 7k250 series is new product after DESKSTAR 180GXP. Its performance is better than the early product, but the hard disk number has changed, causing confusion. Below we will also study the Hitachi 7k250 series of hard drive numbers.
The number of No. 7K250 series is "the maximum capacity of the HDS speed series the product capacity product line code hard disk height interface type cache".
Simple representation is: HDS "XX, XX, XX, X, X, XX, X, X", the hard disk number can also be divided into eight parts.
"HDS" is represented as a Hitachi's Deskstar series hard drive product.
The two "X" of the first portion represent the speed of the hard disk. If it is marked as "42", "54", "72", "10", "15", etc., the speed of this hard disk is 4200 rpm / min, 5400 rpm / min, 7200 rpm / min, 10000 rpm / Points, 15000 rpm / min.
The two "X" of the second part indicate the maximum capacity of the product series, and the unit is GB. "25" said that the maximum capacity of this product is 250GB.
Two "X" of the third part are represented as hard disk capacity, with GB or 10GB in units. For example, "80" represents 80GB, "25" represents 250GB. The fourth part of "X" means the algebra of the hard disk. Now all 7k250 series are letters "V".
The "X" of the fifth part represents the height of the hard disk. Here and the IBM number above is the same.
The two "X" of the sixth section indicate the type of interface of the hard disk, "AT" and "ST". It represents the Ultra ATA100 interface and the Serial ATA150 interface, respectively.
The "X" of the seventh part represents the capacity of the hard disk, there are numbers "2" and "8". It represents a hard disk product that is 2MB cache and 8MB cached, respectively.
The "X" of the Part 8 is the reserved value of the hard disk, and it is currently a number "0".
For the Hitachi 7k250 series "HDS722525VLAT80" hard disk number, we can know that it belongs to 7200 rpm / min, the maximum capacity is 250GB and the total capacity is 250GB hard drive, which is 1 inches, which uses the Ultra ATA100 interface and 8MB. Cache.
Mai Tuo Introduction Modern Electronics, United States of America
Third, Maxto (MAXTOR)
Maxtor is a separate sub-company of Korea Modern Electronics USA. In 2001, due to the merger of Quantium, it was called. Previously, the company's products also covered two aspects of IDE and SCSI, but because of the lack of powerful competition in SCSI, the high-end market was finally gifted by the IDE hard drive, so Maxtor should be the most specialized in hard disk manufacturers. . Because the main energy is concentrated in the IDE hard drive, there is a special and longer technical experience, so it has created brilliant in the retail market of the desktop hard drive, and it is also very good in the retail hard drive market, and the product word of mouth is also very good.
Key trick Mai Tuo hard disk model identification method
Previously the Maxtor hard drive has always used the 7-bit number, but starting from the gold diamond series Diamondmax Plus9, its hard disk number turns 13. However, the 7-digit number for us to identify the hard disk is still in front. Mai Tuo number is "series number this series of hard drive maximum capacity first capacity interface type disc header".
We simply represent four parts of "XX, XXX, X, X".
The two "X" of the first part indicate the product line and model.
"3" is 40GB or less, "9" is 40GB or more, this series is a star drill generation
"2R" is expressed as Fireball 531DX beautiful drill generation
"2b" is expressed as Fireball 541DX Milut 2 generation
"2F" is expressed as Fireball 3
"4W" is expressed as DiamondMax 536DX Star Drill Second Generation
"4D", "4k", "4G" is expressed as Diamondmax 540x star diamond
"4R" is expressed as Diamondmax 16 star diamond four generations
"5T" table shows Diamondmax Plus60 gold diamond six generations
"6L" is expressed as Diamondmax Plus D740X Gold Diamond Seven Generations
"6e" is expressed as Diamondmax Plus8
"6Y" is expressed as DiamondMax Plus9
The three "X" representation of the second part indicate capacity, and the unit is GB. For example, "080" or "200" is expressed as 80GB or 200GB, respectively.
The "X" of the third part indicates the cache capacity, the interface, and the main axis motor type.
"D" is expressed as Utral ATA / 33
"U" is expressed as UTRAL ATA / 66
"H" is expressed as Ultra ATA100 interface, 2MB cache
"J" is expressed as the Ultra ATA133 interface, 2MB cache and uses the ball bearing motor (Ball Bearing Motor)
"L" is expressed as Ultra ATA133 interface, 2MB cache and uses liquid bearing motor (Fluid Dynamic Bearing Motor)
"P" is expressed as the Ultra ATA133 interface, 8MB cache and uses liquid bearing motor,
"M" is represented as the Serial ATA150 interface, 8MB cache and uses liquid bearing motor. The "X" of the fourth part indicates the number of magnetic heads used, that is, the number of records, which can also be calculated with the "hard disk single-disc capacity = 2 × hard disk total capacity / magnetic head number" formulas. However, the gold diamond series of Diamondmax Plus9 begins, the number becomes "0", but we know that the Diamondmax Plus9 of the Golden Drill Series is a single-disc capacity of 80GB products, so the changes here do not affect us.
We use the hard drive of Diamondmax Plus9 No. "6Y200M006500A" with a gold diamond series, we already know that the top 7 of this number is useful to us, so we can see that the hard disk capacity is 200GB, using the Serial ATA150 interface, with 8MB cache And use liquid bearing motor.
Western profile focuses on hard drive brands in OEM market
Fourth, Western Digital
Western Digital Early focuses on the OEM market, the main supply of large companies, the influence of the retail market should be small, and it has always been a smooth state in China. However, with our domestic consumption growth, the western number began to pay attention to the Chinese market, and strive to expand its business in my country. Its main products include Caviar, Protege and Performer's three series, caviar is the main product of the desktop market, product performance, medium, prices.
Key tricks Western data hard disk model identification method
The number of western data is different from the product line, and the number is simple and clear, consisting of 12 numbers or letters. In 12 numbers, the first 6 numbers were the main number, and the next six numbers were additional numbers. The labeling mode of the main series of caviar in its desktop market is "manufacturer code capacity speed, cache interface type".
Simple representation is WD "xxxx, x, x-xx, x, x, xx", can be divided into seven parts.
"WD" is the abbreviation of "Western Digital", which means it is the product of the western data company.
The top 6 main sideways:
The first part of the four "X" is represented as a hard disk capacity, typically consisting of 3 to 4 digits, and the unit is GB. Its logo and Seagate are the same, such as 4-bit "1200" representing 120GB, 300 "represents 80GB.
The second part of "X" is represented as a hard drive speed and a cache capacity.
"A" indicates a caviar hard disk with a speed of 5400 rpm / min
"B" indicates the cake sauce hard disk for the speed of 7200 rpm / min
"E" indicates that the speed is 5400 rpm / division Protege series hard drive
"J" indicates that the speed is 7200 rpm / min, the data caching is 8MB high-end caviar hard drive
"G" is indicated as the speed of 10,000 rpm / min, the data cache is the highest end desktop hard disk RAPTOR series of 8MB
The "X" of the third part indicates the type of interface.
"A" is expressed as Ultra ATA / 66 or earlier interface type
"B" is expressed as Ultra ATA / 100
"W" indicates hard drives applied to the A / V (Digital Video) field
"D" is expressed as the Serial ATA150 interface
After six additional numbers:
For the six additional numbers behind, the author is sorry, can't find a hard disk attached to the Serial ATA150 interface rules, which can't be said to be a regret.
The two "X" of the fourth part are expressed as the OEM customer logo. Today, the western number is for the retail market, and the two numbers have been numbers "00". If as other characters, the code for the OEM client, the different numbers correspond to different OEM customers, and this number of hard drives are usually not facing retail markets.
The "X" of the fifth part represents the hard disk single-disc capacity, and the unit is GB. "C" represents the hard disk single-disc capacity of 40GB, "D" represents 66GB, "e" represents 83GB. The "X" of the sixth part indicates the version code of the same series of hard drives, which varies with the different series.
"A" represents 7200 rpm, the BB series of Ultra ATA100 interface;
"B" represents 5400 rpm, the AB series of Ultra ATA66 interface;
"P" represents 5400 rpm, the EB series of the Ultra ATA100 interface;
"R" represents 7200 rpm, the Ultra ATA100 interface, has a JB series of 8MB cache.
In the single-disc 66GB and 83GB products, other letters such as "U", "V" have appeared, respectively correspond to JB series and BB series products.
The last part of "X" is represented as a hard drive's Firmware version. We are currently generally "A0".
In the hard disk number of "WD2500JB-00EVA0", we can know that this is a western data company that is 250GB, 7200 rpm and has a hard disk with 8MB cached. From the next additional number. We can also see that this is a product for the retail market, a single disc capacity of 83GB. In fact, I think that the general consumers can be used to buy the western number hard drive to see the 6-digit number of the previous one, and the six additional numbers after the following will increase the difficulty.
For the hard drive of the new Serial ATA150 interface, the main 6 digits are "WD2500JD", we can know that he is 7200 rpm / division, the data cache is 8MB, and the interface is the hard disk of the interface for the SERIAL ATA150 interface. There is also the highest end desktop hard disk RAPTOR (Raptor) series of the western-digital company. The main number "WD740GD" also represents most of the information, "capacity is 74GB, with a speed of 10,000 rpm / min, data cache is 8MB, using Serial ATA150 Interface "This information can also be seen easily.
Samsung profile rare metal box packaging service is perfect
Five, Samsung
After the wind wave of the hard drive, Samsung hid the three-year warranty flag to the market. Although the time of entering the hard disk is short, its performance has always been stable, and the relatively perfect after-sales service is also its advantage. In addition, Samsung's "black box" uses rare metal box packaging, although this is not dry with the quality of the hard disk, but it feels delicious. Samsung hard drive has currently more advanced liquid bearing motor FDB technology, IMPACGUARD magnetic head shockproof, SSB seismic housing and NOISEGUARD syntine technology, etc., is used to improve product comprehensive performance.
Key tricks Samsung hard drive model identification method
Because the product line is reopened, the current Samsung hard drive is a spinpoint series, and this series is divided into two categories: P and V. The number of numbered labels is "Series Speed Capacity Cache Circum Number Interface Type".
We can also express five parts: "x, x, xxx, x, x".
The first part of "X" represents the hard disk product line. "S" here is expressed as "spinpoint" series.
The second part of "X" represents a product of different speeds of the Samsung hard drive.
"V" means V series hard drive, speed of 5400 rpm / min
"P" represents the P-series hard drive, the speed is 7200 rpm / min
Three "X" of the third part indicate the hard disk capacity, usually 2 to 3 digits, and its unit is GB. "080 or 120" is represented as a hard disk product of 80GB or 120GB, but if the cache is 8MB, their flags will become "081 or 121".
The "X" of the fourth part indicates the number of hard disk magnetic heads, and we can also estimate the single disc capacity according to the formula of "hard disk single-disc capacity = 2 × hard disk total capacity / head number". The "X" of the fifth part indicates the type of interface of the hard disk.
"A" is expressed as an E-IDE / ATA interface
"S" is expressed as SCSI 2 interface
"U" is expressed as Ultra SCSI interface
"D" is expressed as Ultra ATA 66 interface
"H" is expressed as Ultra ATA 100 interface
"N" is expressed as Ultra ATA 33 interface
"C" is expressed as the Serial ATA150 interface
We can also see the Samsung hard drive called "SP1614C", we can also see that this is a Sofabash's SpinPoint family 7200 rp-series P-series hard disk product, its hard disk is 160GB, the cache capacity is 8MB, the number of hard drive 4, using the Serial ATA150 interface, the hard disk single disc capacity is 2 × 160 GB / 4 = 80GB.
For a variety of brands, various models of hard drives, they have their own characteristics, and there is also the same performance. I hope that our DiYer can see its truth and see through its nature, and can find it in many products.
