Each hard drive number meaning

I. Seagate

Seagate Technology Corporation (Seagate Technology) is a veteran brand in the hard disk world, and the vast majority of users are already familiar with it. As the world's largest disk drive, disk and read-write head manufacturer, the company is always a ibm,compaq,sony and other industry major hard disk suppliers, the company's strength is evident! Seagate is one of the first hard drive brands to enter the Chinese market and has a significant role in the SCSI market. There are currently three major series of Seagate hard drives on the market: Barracuda (cool fish), cheetah and Momentus. respectively for desktop PC, server/high-performance workstations, notebooks and other fields. The number of Seagate hard drives is relatively simple in various hard drive numbers, and the information provided is rarely the latest mainstream Seagate series numbers are in the following format: "st+ HDD size + capacity + Primary ID + Secondary ID + interface type"

Take the example of a 7200.7 cool fish drive numbered st3120827as. First, "ST" stands for "Seagate", which means Seagate's products. This is at the beginning of any Seagate hard drive product number.

(A) Represents the shape of the hard drive.

1-Represents a 3.5-inch full-height hard drive, thickness: 41mm

3-for 3.5 "half-height hdd, thickness: 25mm

4-Represents a 5.25-inch hard drive that is now obsolete. Thickness: 82mm

5-for 3.5-inch HDD, Thickness: 19mm

9-represents 2.5-inch half-height HDD

(B) is the second part consists of 2 to 4 digits, representing the capacity of the hard disk. Example, "120" means the capacity of this hard disk is 120GB, "80" capacity is 80GB. Now the cool Fish series is generally 2 to 3 digits, the older version of the hard disk is 3 to 4 digits. Because the new fourth bit as the original NCQ logo, the value of "8" contains NCQ technology, for "0" is not, 3 means 8MB cache (3 square = 8 (2*2*2=8)), if 4 is represented 16MB cache (2*2*2*2=16), but also useful "6" Indicates that the hard disk has a cache capacity of 16MB. Not completely unified, to see the specific model

(C) Part of the logo that represents the hard disk, which is mainly composed of the main and the secondary symbols. The first number is the primary flag, representing the number of slices in the normal IDE hard drive. For example, "2" means that there are 2 platters in the drive. In Seagate's SCSI drive, the primary ID is the speed of the hard drive. The second number is the secondary flag, which is the auxiliary flag for the hard drive. The secondary flag is valid only if the primary flag is the same or invalid. It is generally used to represent the algebra of hard disks, the larger the number of tables

The higher the algebra, the more new the drive.

Part (D) consists mainly of 1 to 3 letters, representing the type of interface of the hard disk.

Current mainstream desktop HDD:

"A" is represented as an interface of the ATA udma/33 or UDMA/66 IDE, which is the normal ide/eide interface;

"As" represents the interface of the serial ATA150;

"AG" means the interface of the ATA dedicated to the notebook computer

Older or obsolete hard drives:

N-Representative: 50-pin Ultra SCSI interface with data transfer rate of 20mb/s W-for: 68-pin Ultra SCSI interface with data transfer rate of 40MB/S

WC-representative: 80-pin Ultra SCSI Interface

FC-Represents: Fiber, provides up to 100mb/s data transfer rates, and supports hot-swappable WD-Rep: 68-pin Ultra Wide SCSI interface

LW-Representative: 68-pin Ultra-2 SCSI (LVD) interface

LC-representative: 80-pin Ultra-2 SCSI (LVD) interface

According to the above, we can interpret the number as: Seagate hard disk, 3.5-inch half-height hdd, capacity of 120GB, with NCQ technology, the use of dual platters, for the 7th generation of Cool Fish 7200 series products (commonly known as 7200.7), using the serial ATA150 interface.

On a named specification,

Seagate Desktop drives currently dominate the desktop platform with cool fish system, which is divided into 9 generations, 10 generations, 11 generations and other products. For example, let's take a look at the naming rules for Seagate hard drives in detail.

This drive everyone through the label can be seen is a 250GB product, the product name is: Barracuda 7200.10 GBytes, the model is st3250310as. The drive is a 3.5-inch, half-height, 1-drive disk with a total capacity of 250GB for the Seagate Company's SATA interface drive. Characters printed from the hard drive label can give us some useful information, such as "Barracuda" on behalf of the Cool Fish series, "7200.10" refers to Seagate 7200 turn tenth generation products, a single disc capacity of 250GB, If you change to 7200.9 or 7200.11, it means the Nineth and 11th generation products of the Seagate Cool Fish, with a capacity of 250GB. GBytes.

Second, Hitachi

Since Hitachi merged IBM's hard drive division, Hitachi has inherited IBM's hard drive technology. It is well known that IBM is the world's largest memory leader, many of the history of breakthrough memory technology is all out of IBM companies, such as the most typical modern hard disk ("Temperature" hard disk) is the prototype of IBM Research and development, of course, later widely used "MR (magneto-resistive)", "GMR (giant reluctance) "Head, and its famous" Pixie Dust (Dust) "technology is also developed by the IBM Company. Although at present in the domestic market performance in general but its strong background and strength, let no one can ignore.

Hitachi hard drives have 180GXP and 7k250 two series, so it's more complicated to distinguish their numbers.

180GXP Series

The 180GXP series inherits the IBM hard drive number. It is identified by: "ic+ platter size + HDD height + capacity + Interface type + Series model + RPM + cache capacity"

The simple representation is: IC "Xx,x,xxx,xx,xx,xx-x", its hard disk number can be divided into seven parts.

"IC" represents IBM's products.

The first part of the two "X" represents the shape and size of the hard disk. "35" means 3.5 inches (88.9 mm) and "25" represents a 2.5-inch (63.5 mm) hard drive product.

The second part of the "X" is the height of the hard disk. "L" stands for 1 inches (25.4 mm),

"T" stands for 0.49 "(12.5 mm), and" N "represents 0.37" (9.5 mm) of hard disk products.

The third part of the three "X" represents the capacity of the hard disk, the unit is GB. such as "180" means that the capacity of the hard disk is 180GB, "080" and so on is 80GB.

The two "X" in part four represents the type of the hard disk interface:

"AV" is represented as an ATA interface

"UW" represents an interface for Ultra160 SCSI 68-pin wide

"UC" represents an interface for Ultra160 SCSI 80-pin SCA

"XW" represents an interface for Ultra320 SCSI 68-pin wide

"XC" represents an interface for Ultra320 SCSI 80-pin SCA

"F2" represents an interface for FC-AL-2 (2 Gbit)

The two "X" in part five represents the model number of the HDD product family. Its "ER" represents the Deskstar 60GXP series, "VA" represents the Deskstar 120GXP series, "V2" represents the Deskstar 180GXP series.

Part VI of the two "X" is expressed as the speed of the hard disk, the unit is rpm/points. Its "04" is expressed as 4200 rpm/, "05" for 5400 rpm/, "07" for 7200 rpm/, "10" for 10000 rpm/, "15" for 15000 rpm/points.

The seventh part of "X" indicates the capacity of the hard disk cache, starting from Deskstar 180GXP. "0" is represented as a 2MB cache, and "1" is represented as a 8MB cache. which uses a disk 60GB product cache for 2MB, using two discs 80GB and 120GB product cache has 2MB and 8MB two, using three Platters 180GB product cache is 8MB, pay attention to distinguish.

With the number "ic35l180avv207-1" as an example, we can tell by number that the drive is a 3.5-inch, 1-inch hard drive produced by IBM, with a total capacity of 60GB and an Ultra ATA interface for Deskstar 180GXP series products, The speed is 7200 rpm/, with a 8MB cache.

7K250 Series

Hitachi's 7K250 series is a new product following the launch of the Deskstar 180GXP. Its performance is better than earlier products, but the hard drive number has also changed, causing confusion. Let's look at the hard drive numbering of the Hitachi 7K250 series.

The 7K250 series is numbered in the form of "hds+ RPM + Series maximum capacity + Product capacity + product line code + HDD Height + interface type + cache".

The simple expression is: HDS "xx,xx,xx,x,x,xx,x,x", hard disk number can also be divided into eight parts.

"HDS" is represented as Hitachi's Deskstar series HDD products.

The first part of the two "X" indicates the speed of the hard disk. If it is labeled "42", "54", "72", "10", "15" and so on, then the speed of the hard disk is 4200 rpm/points, 5400 rpm/points, 7200 rpm/points, 10000 rpm/points, 15000 rpm/points.

The second part of the two "X" represents the maximum capacity of the product family, in GB. "25" means that the product has a maximum capacity of 250GB.

The third part of the two "X" represents the hard disk capacity, the unit is GB or 10GB. For example, "80" means 80GB, "25" means 250GB.

The "X" in part IV represents the algebra of the hard disk. All 7K250 series are now the letter "V".

The "X" in part five indicates the height of the hard drive. This is the same as the IBM number above.

The two "X" in part six represents the interface type of the hard disk, with "at" and "ST". They represent the ultra ATA100 interface and the serial ATA150 interface, respectively.

The seventh part of "X" indicates the capacity of the hard disk cache, with the numbers "2" and "8". It stands for 2MB cache and 8MB cache of hard disk products respectively.

The "X" of the part is the reserved value of the hard disk, which is currently the number "0".

As an example of the Hitachi 7K250 series "Hds722525vlat80" hdd number, we know that it belongs to 7200 rpm/, with a maximum capacity of 250GB and a total capacity of 250GB HDD, 1 inches high, with ultra ATA100 interface and has a 8MB cache.

Hitachi's 500G HDD features a 16M cache design with a hard drive number of hds725050kla360, 500GB and "360" for the SATA2.5 interface 16MB cache. The drive uses SATA2.5 interface design, greatly improve the transmission speed of the hard disk, the chip on the PCB can also be clearly seen. At the same time, 16MB cache, greatly improve the overall performance of the hard disk, reduce the load of the system, but also improve the data transmission speed. With the popularity of Vista operating systems, and the popularity of HD movies, the larger capacity of hard drives is getting closer.

Third, Maxtor (Maxtor)

Maxtor (Maxtor) is an independent subsidiary of Korea Hyundai Electronics USA Inc., 2001

Because of the acquisition of Quantum and renowned. In the past, the company's products also covered the IDE and SCSI two aspects, but because of the SCSI product lack of competition and eventually abandoned the high-end market to attack the IDE hard disk, so Maxtor company should be the most single-minded hard disk manufacturers today. Because the main focus on the IDE hard disk field, with a focused and more advanced technical experience, so in the desktop hard disk retail market once created brilliance, it is in the retail hard disk market influence is relatively large, product reputation is also very good.

The previous Maxtor hard drive has been using a 7-bit number, but from the Gold Diamond Series DiamondMax PLUS9, its hard disk number has become 13. However, it is useful for us to identify the hard drive or the previous 7-digit number. Maxtor number is "serial number + this series hard disk maximum capacity + first + capacity + interface type + disc number".

We will simply express it as a "xx,xxx,x,x" four parts.

The first part of the two "X" represents the product family and model.

"3" for 40GB or less, "9" for more than 40GB, this series for the star Drill generation "2R" for the Fireball 531DX US-diamond generation

"2B" is represented as Fireball 541DX Diamonds second generation

"2F" is represented as Fireball 3

"4W" is expressed as DiamondMax 536DX star Drill Two generations

"4D", "4K", "4G" are expressed as DiamondMax 540X star drill Three generations

"4R" for DiamondMax 16 star Diamond four generations

"5T" for DiamondMax PLUS60 Gold Drill Six generations

"6L" represents DiamondMax Plus d740x Gold Diamond Seven Generations

"6E" is represented as DiamondMax PLUS8

"6Y" is represented as DiamondMax PLUS9

The second part of the three "X" represents the capacity, in GB. For example, "080" or "200" are represented as 80GB or 200GB respectively.

The third part of the "X" represents the cache capacity, interface and spindle motor type.

"D" is expressed as utral Ata/33

"U" is expressed as utral ATA/66

"H" is represented as Ultra ATA100 interface, 2MB cache

"J" represents the Ultra ATA133 interface, 2MB cache and use of ball Bearing motor

"L" represents the Ultra ATA133 interface, 2MB cache and use of liquid bearing motor (Fluid Dynamic Bearing Motors)

"P" represents the Ultra ATA133 interface, 8MB caches and uses a liquid bearing motor, "M" represents the serial ATA150 interface, 8MB caches and uses a liquid bearing motor.

The "X" in part IV indicates the number of heads used, that is, the number of recording surfaces, which can also be calculated by using the formula "HDD single disk capacity =2X HDD Total capacity/Head count" to calculate the single disk capacity. However, the Gold Diamond Series DiamondMax PLUS9 began, the number became "0", but we know that the Gold Diamond series of DiamondMax PLUS9 is a single disc capacity of 80GB products, so the changes here will not affect our identification.

Take the Gold Diamond series DiamondMax PLUS9 number "6y200m006500a" of hard disk as an example, we already know this number is the first 7 bits is useful to us, so we can see that the hard disk capacity is 200GB, using the serial ATA150 interface, Has a 8MB cache and uses a liquid bearing motor.

Iv. Samsung

After the hard drive warranty turmoil, Samsung held high three-year warranty banner cut into the market. Although the time to enter the field of hard disk is short, but its performance has been stable, more perfect after-sales service is its advantage. In addition, Samsung's "black box" used a rare metal box packaging, although this is not related to the quality of the hard drive, but the feeling is very delicate. Samsung hard disk has the current more advanced liquid bearing motor FDB technology, Impacguard head shockproof, SSB anti-seismic shell and noiseguard noise suppression technology, etc., to improve product comprehensive performance.

Because the product line has yet to be expanded, the current Samsung hard drives are Spinpoint series, this series is divided into P and v two major categories. The number dimension is "series Model + speed + capacity + cache + Head number + interface type".

We can also simply say "x,x,xxx,x,x" five parts.

The first part of the "X" represents the hard drive product family. Here the "S" is represented as "Spinpoint" series.

The second part of the "X" represents the Samsung HDD series of different speed products. "V" means V series hard drives with a speed of 5400 rpm/

"P" means p-series hard drives with a speed of 7200 rpm/min.

The third part of the three "X" represents the hard disk capacity, usually 2 to 3 digits, the unit is GB. "080 or 120" is a 80GB or 120GB hard drive product, but if the cache is 8MB, most of their flags will become "081 or 121".

Part IV of the "x” represents the number of hard disk heads, we can also according to the" hard disk capacity =2X HDD Total capacity/Head count "formula to calculate the single disk capacity.

The "X" in part five indicates the interface type of the hard disk.

"A" is represented as E-ide/ata interface

"S" represents the SCSI 2 interface

"U" is represented as Ultra SCSI interface

"D" is represented as Ultra ATA 66 interface

"H" is represented as Ultra ATA 100 interface

"N" is represented as Ultra ATA 33 interface

"C" is represented as serial ATA150 interface

The main technical specifications of Samsung HD160HJ are: Single disc 160GB, total capacity 160gb,7200rpm spindle speed, 8MB cache, SATA rev.2.5 specification, external interface rate is standard 3gb/s, plus NCQ Command Queuing: Native command queue) technology, through the RoHS lead-free process of environmentally friendly products. At present, the brand products in the market have unique performance, the product is no exception,

Staggerd spin-up (staggered acceleration technology), high speed Dual DSP Based Architecture (Fast dual digital signal basic algorithm), ATA S.M.A.R.T compliant, ATA Automatic Acoustic Management (automatic noise management), ATA 48-bit address (48-bit addressing), Silentseek (cool Seek), Impacguard (Impact protection) and other features effectively protect the hard drive life.

We take the "sp1614c" Samsung hard drive as an example, we can also see that this is Samsung's Spinpoint family 7200 rpm P series HDD products, the total hard disk capacity of 160GB, the cache capacity of 8MB, hard disk head number is 4, using serial ATA150 interface, HDD single disc capacity is 2X160GB/4=80GB

V. Western data (Western Digital)

Western data (Western Digital) early focus on the OEM market, mainly for some large companies to supply, in the retail market less influence, at home has been in a tepid stable state. But with the growth of domestic consumption, the West began to attach importance to the Chinese market, and strive to expand their business in China. Its main products are caviar (Caviar), protege and performers (performer) three series, caviar for the desktop market's flagship products, product performance is fair, the price is more advantageous. The numbering format of Western data varies by product family, and the numbering method is simple and clear, consisting of 10 numbers or letters.

The numbering format of Western data varies by product family, and the numbering method is simple and clear, consisting of 12 numbers or letters. In 12 numbers, the first 6 numbers are the primary number, and the next 6 numbers are additional numbers. The main series of caviar in the desktop market is labeled "Manufacturer code + capacity + speed, cache + interface type".

The simple representation of WD "XXXX,X,X-XX,X,X,XX" can be divided into seven parts.

"WD" is the abbreviation for "Western Digital", which indicates that it is the product of Western Data company. Top 6 Main numbers:

The first part of the four "X" is represented as hard disk capacity, usually consisting of 3 to 4 digits, in GB. The logo and Seagate are the same, such as the 4-bit "1200" for the 120gb,3-bit "800" represents 80GB.

The second part of the "X" is expressed as hard disk speed and cache capacity.

"A" means the caviar drive with a speed of 5400 rpm/points

"B" means that the speed is 7200 rpm/of the caviar hard drive

"E" means the speed is 5400 rpm/protege series HDD

"J" indicates a speed of 7200 rpm/, the data cache is 8MB high-end caviar hard disk "G" for speed with 10000 rpm/points, data cache 8MB of the highest end desktop HDD Raptor series

The third part of the "X" represents the type of the interface.

"A" is represented as ultra ATA/66 or earlier interface type

"B" is represented as Ultra ata/100

"W" indicates the hard drive applied to the A/V (Digital AV) field

"D" is represented as serial ATA150 interface

Post six-digit additional number:

For the following six-bit additional number (unknown origin).

The two "X" in part four represents the OEM customer logo. Today, the number of West digital products for the retail market is two numbers for the number "00". If as other characters, the code for the OEM customer, different numbers correspond to different OEM customers, and this number of hard drives is usually not for the retail market.

The "X" in part five represents the disk capacity, in GB. "C" means the disk capacity is 40GB, "D" stands for 66GB, "E" stands for 83GB.

The "X" in part six represents the version code of the same series of drives, which changes with different series.

A-BB series that represents 7200 rpm, Ultra ATA100 interface;

D-Represents the SATA 150 interface

B-Represents 5400 rpm, Ultra ATA66 interface AB series;

P-EB series that represents 5400 rpm, Ultra ATA100 interface;

R-Represents 7200 rpm, Ultra ATA100 interface, JB series with 8MB cache. W-Represents the hard drive applied to the A/V (Digital AV) field

S-Represents the SATA 300mb/s interface (in the west number of the hard disk, some JS products do not represent the current SATA standard, but with the 300mb/s transfer speed, such as wd1200js-00mhb0)

In the single disc 66GB and 83GB products, but also appeared "U", "V" and other letters, respectively, corresponding to the JB series and BB products.

And now more than two letters marked interface, such as: BB, JB stands for parallel port, 2MB cache, with JS, KS, and Ys end of the serial drive, while, JS represents 8MB two cache, KS, Ys for 16MB two cache, and Ys represents the enterprise-class hard disk

The last part of the two "X" is represented as the firmware version of the hard disk. Our current common is generally "A0".

We use the "wd2500jb-00eva0" hard drive number as an example, we can from the main number

To know that this is a Western data company produced a capacity of 250GB, 7200 rpm and 8MB cache of hard disk. Additional numbers from the back we can also see this is the Western data for the retail market, a single disc capacity of 83GB products. In fact, I think for the general consumer, buy West number hard drive to look at the front of the 6-digit main number can be learned that performance, interpretation after the six-digit additional number will increase the difficulty.

For the west of the company's new serial ATA150 interface of the hard disk, such as the main 6-bit number "WD2500JD", we can know that he is the speed of 7200 rpm/points, the data cache is 8MB, using the interface for the serial ATA150 interface of the hard disk. And for the west, the highest-end desktop HDD Raptor (Raptor) series, the main number "WD740GD" also represents the majority of information, its "capacity of 74GB, rotational speed has 10000 rpm/points, data cache 8MB, using serial ATA150 interface" We can also easily see this information.

The full range of Caviar SE16 series has 16MB cache capacity compared to the WD Caviar SE System

The 8MB cache size of the column is one-fold. And the western data originally has an old wd3200aaks hard disk product, is the single dish 160G design, and the new single disc 320G design hard disk model is the Western data wd3200aaks-00b3a0, everybody may notice the middle part of the label the MDL number, look for with "00b3a0" The suffix is the new version.

VI. Toshiba (Panasonic)

The simple representation is "xx,xx,xx,x,x,x", which can be divided into six parts. such as "MK3265GSX"

The first part of the two "XX" represents the hard disk product family. One of the common notebook drives sold in mainland China is MK, a fixed symbol

The second part of the two "XX" represents the hard disk capacity, its units are GB, such as "16" means 160G, "50" for 500G, "64" for 640G.

The third part of the two "XX" represents the hard disk development of algebra, hard disk technology updates very fast, often 1-2 months or so may have a new technology to produce, the two numbers of the same hard drive to prove the use of technical standards, specifications are the same. These two numbers of Arabic numerals, the higher the development level, the current market is generally common are "55 series", "59 series", "63 series", "65" series.

Part IV of an "X" represents the hard disk capacity of the unit of measurement, currently generally "G", indicating that the hard disk with "GB" metering, if "M", indicating that the hard disk with "MB" metering.

Part V of an "X" for the interface type: "A" for the same port, "S" for the serial port, "P" indicates that the PCI interface, (Toshiba 1.8 "Small hard disk interface may also appear" C "to indicate a small port of CF).

An "X" in part six represents the hard disk thickness and motor speed: Simply take the Toshiba notebook hard Drive, which is now the most common example: s represents 9.5mm/4200rpm,x

9.5MM/5400RPM, the motor is fdb.

As in (Ellipse contents):

Second, serial number another Toshiba hard drive We also need to focus on a serial number S/n (s/n:serial numbers)

such as (the ellipse inside the content), this kind of number also records the hard drive factory time, the production line, the origin and so on more subtle information, each hard disk has its own one S/n number, so this number is equivalent to the hard drive identification, the current Toshiba hard disk is to use this number to determine whether the hard disk is a regular licensed, Whether a three-year warranty service is available. Extinction

Fee holders can be in the oval circle (such as) 12-digit S/n number in the seven-XI special set up a licensed inquiry system, you can determine whether the product is licensed. For enquiries, call the 4007798778 hotline to inquire after-sales staff to help your beloved hard drive Yue Heyue.

VII. Fujitsu (Panasonic)

Each hard drive number meaning