1.three Tough drive brand and model identification

1.3.1 Frequent Hard Disk Brands

1. Seagate

Seagate is one of the world's top challenging drive companies. how to recover data from a deleted partition was initial manufactured by Seagate. However, this difficult drive has excessive heat and high repair rate mainly because the technologies will not turn into hot. . Certainly, this didn't protect against Seagate from entering the IDE industry, and after that Seagate launched Barracuda and Barracuda II, which became the leader in the 7200IDE hard drive market. In May perhaps 2006, Seagate effectively acquired Maxtor. The benefit of Seagate difficult drives is their low value. The models of your similar grade are tens or even hundreds of dollars decrease than Quantum. This benefit tends to make Seagate really hard drives the initial selection for low-cost laptop solutions. Then there is the high seek speed of Barracuda II, which is usually considerably more rapidly than other difficult drives in random data transmission. The disadvantage is the fact that it can be not satisfactory with regards to noise and heat, and also the overclocking performance is just about zero, which tends to make some overclocking enthusiasts prohibitive. Common Seagate hard drives are shown in Figure 1-34.

2. Maxtor

Compared with Quantum and Seagate, Maxtor entered the domestic marketplace reasonably late, but Maxtor is the tough disk manufacturer that attaches essentially the most importance towards the Chinese mainland industry. All Maxtor hard drives, regardless of their model, are uniformly packed in paper boxes + plastic foam. The packaging and printing are also stunning. The box also comes using a series of accessories like manuals and warranty cards. The primary solutions of Maxtor tough disks are Golden Diamond Fourth Generation, Golden Diamond 5 Generation, Golden Diamond Sixth Generation, Golden Diamond Seventh Generation, and American Diamond Initially Generation, Second Generation, Third Generation, Star Diamond 1st Generation, Second Generation, Third Generation. The benefit of Maxtor hard disk is the fact that its after-sales service is extremely excellent, along with the fourth generation of Golden Diamond is excellent in noise and heat remedy. The shortcomings are the very same as Seagate hard drives, and there's pretty much no overclocking functionality. On the other hand, in general, Maxtor tough drives are really satisfactory in all aspects, as well as the rates are somewhat reasonable. If you will find no particular needs for hard drive performance, Maxtor hard drives are certainly very excellent. The option of frequent Maxtor hard drives is shown in Figure 1-35.

three. Western Digital

Western Digital (WesternDigitalCorp) is a world-renowned challenging disk manufacturer that gives storage merchandise and connected services for customers and organizations that gather, manage, and use digital facts. When it comes to goods, Western Digital is often described as a 'full line of attack', delivering corresponding options to low, medium and high-end customers. They present 5400r / min and 7200r / min caviar series for desktop users; and 7200r / min Professional series solutions for mid-range customers.

In the market place, currently, the most popular Western Digital tough drives are WD800AB, WD600AB, WD400AB and WD800BB. WD600BB, WD400BB. The basic item features of those 6 challenging drives are respectively aimed at the low-end market place and high-end desktop customers. For entry-level Western Digital challenging drives (WDxxxEB series), their functionality can no longer meet the specifications of ordinary Computer customers, so the marketplace is now extremely a lot Rare.

Western Digital's WDxxxAB series for the mainstream desktop industry has a speed of 5400r / min. Compared using the 7200r / min solution, though its information transmission rate is slightly lower, its benefits are also obvious: 1st, low heat and low noise Secondly, Western Digital's 5400r / min products all use 2MB of cache, so it has fantastic efficiency in terms of item reliability and information transmission rate. Using the substantial boost inside the information storage density of hard disks, the single-disk capacity with the tough disk may be made quite substantial, and the direct advantage of high single-disk capacity would be to enhance the data transmission rate, that is also probably the most direct method to increase the information transmission rate. . The 3 WDxxxAB series listed above are all combined with 2MB cache, all making use of the mainstream ATA / 100 interface form, plus the typical seek time is 9.5ms. From these traits, as a 5400r / min item, the performance of WDxxxAB It should not be undesirable.

As for Western Digital's high-performance desktop really hard drives (WDxxxBB series), their speeds are 7200r / min, the information cache is 2MB, as well as the interface is ATA / 100. The proportion of 7200r / min and 5400r / min developed by Western Digital Enterprise has already been accounted for, and its 7200r / min shipments had been when in the forefront. For that reason, Western Digital has positioned its 7200r / min difficult drive as its mainstream product. For most users, it's recommended to buy this series of Western Digital products, simply because with all the additional improvement in the overall performance of other computer system technique accessories, the 5400r / min difficult drive The transmission price will gradually turn out to be a bottleneck, as shown in Figure 1-36.

four.IBM

Speaking of IBM, no one knows, nobody knows. The initial really hard drive was manufactured by IBM 1st; IBM difficult drives made use of giant magneto-resistive heads initially; IBM challenging drives initial elevated single-disk capacity to 10GB and 15GB , 20GB ...; IBM challenging disk is currently the only really hard disk that will hold five platters within the disk; IBM would be the only difficult disk manufacturer that separately produces 7200 rpm and 5400 rpm challenging disk platters. The positive aspects of IBM really hard disks are advanced technologies. Quite a few sophisticated technologies are often the very first to become adopted by IBM really hard disks, and their expense performance is also extremely excellent. Specifically worth mentioning is that the overclocking efficiency of IBM challenging disks is also great, second only to Quantum, and foreign Overclocking tends to be extra optimistic about IBM difficult drives, and its overclocking efficiency is evident.

1.3.two Identification of really hard disk model

1. Seagate really hard drive recognition

The Seagate really hard drive number is relatively very simple, primarily composed of two parts: as shown in Figure 1-37.

The very first component is Seagate serial number identification, one example is, Barracuda7200.12320GB, exactly where Barracuda is Seagate Barracuda series. Facing the mainstream desktop storage market place, also to Barracuda, Seagate also has the Cheetah Jaguar series having a speed of as much as 15,000 rpm, primarily for enterprise-level applications. 7200 represents the speed on the difficult disk. The greater the basic speed, the shorter the average latency, and also the greater the efficiency on the challenging disk. The speed of the notebook hard disk is 5400 rpm, along with the desktop Pc is 7200 rpm. 12 stands for the 12th generation of Kuyu, which is the present mainstream generation. 320GB is 320G, which represents the hard disk capacity.

The second most component is the identification of particular models, the identification system is: ST + difficult disk size + capacity + primary logo + auxiliary logo + interface variety, which is, its hard disk quantity is often divided into 4 components.

(1) ST stands for Seagate, which is a Seagate product.

(two) The size in the really hard disk refers to the shape and size of the challenging disk. '1' suggests three.5-inch full-height really hard disk with a thickness of 41mm; '3' suggests a three.5-inch half-height hard disk with a thickness of 25mm; '4' means a five.25-inch hard disk having a thickness of 82mm; '5' signifies a 3.5-inch challenging disk , A difficult disk with a thickness of 19mm; '9' implies a 2.5-inch challenging disk.

(three) The capacity in the tough disk is generally composed of 3 to 4 digits, plus the unit is GB. As an example: '1600' means that the capacity of this really hard disk is 160GB, and '400' or '800' implies that its capacity is 40GB or 80GB.

(four) The hard disk logo is composed on the key logo plus the sub logo. The previous quantity is the primary logo. Inside the IDE difficult disk of Seagate, it refers towards the quantity of disks on the tough disk. By way of example, the quantity '2' indicates that the challenging disk uses two disks. In Seagate's SCSI tough disk, the key logo refers for the speed from the really hard disk. With all the primary logo, naturally, there might be a secondary logo, and also the latter quantity will be the secondary logo. It is only when the main logo would be the same or invalid that the secondary logo is meaningful. It usually represents the performance and algebra in the challenging disk. When the number is bigger, the larger the algebra, the better the overall performance, plus the newer the challenging disk.

(five) The interface sort is mostly composed of 1 to three letters, indicating the type of difficult disk interface. The general desktop IDE hard disk is reasonably easy, but if the current and early SCSI hard disks are included, the which means becomes much more complicated.

'A' suggests ATAUDMA / 33 or UDMA / 66IDE interface;

'AS' implies SerialATA150 interface;

'AG' signifies the ATA interface committed to notebook computers;

'N' indicates a 50-pin UltraSCSI interface having a data transfer price of 20MB / s;

'W' means 68-pin UltraSCSI interface, and its information transfer rate is 40MB / s;

'WC' means the interface of 80-pin UltraSCSI;

'FC' indicates optical fiber, which can present a information transfer rate of as much as 100MB / s, and supports hot plugging;

'WD' implies 68-pin UltraWideSCSI interface;

'LW' implies 68-pin Ultra-2 SCSI (LVD) interface;

'LC' indicates an 80-pin Ultra-2 SCSI (LVD) interface.

When identifying, the second most portion is ST3320433AS. So that you can express clearly, separate the numbers with distinctive meanings with spaces: ST3320433AS.ST is Seagate, which represents Seagate challenging disk. 3 stands for three.5-inch half-height tough disk, which means that the size in the mainstream really hard disk 320 may be the similar as above, that is, 320Gbytes, 320G capacity implies the corresponding hard disk capacity. The 4 after the capacity represents the cache size, and the three just after the cache represents the amount of discs, that's, many discs, which could possibly be 1, 2, 3, four, 5 along with other numbers, exactly where 3 represents that this hard disk consists of three discs, disc The 3 after the count just isn't significant, and may possibly represent the corresponding version quantity. The larger the quantity, the better, and it has nothing to perform with recognition. AS stands for SA-TA (SerialATA) really hard disk, plus a single A stands for UltraATA, that is a popular IDE really hard disk.

Here are a few Seagate Barracuda hard disks as examples. You can know how to recognize Seagate Barracuda really hard disks by numbering the examples.

ST3160023AS, the difficult disk can be a 3.5-inch half-height tough disk manufactured by Seagate using a thickness of 25mm. It uses 2 challenging disk platters with a total capacity of 160GB SerialATA150. Additionally, if you see '7200.7' and other characters printed on the really hard disk, it implies that this can be Seagate's new single-disk capacity 80GB tough disk series; see 'Barracuda7200.7Plus' and other characters, you understand that this series of solutions are utilised 8MB cache, SerialATA150 interface or UltraATA100 interface.

ST3500320AS, this really hard drive is the 11th generation 50OG Seagate tough drive created in Thailand, ST-Seagate; 3-3.5 inches; 500-500MB; 3-32MB cache; 2-2 discs, single disc 250; 0- meaningless, spare number; AS-SATA interface

S13160813AS, ST-seagate; 3-3.five inches; 160-160MB capacity; 8-8 trillion cache; 1-1 disc; 3- meaningless, spare quantity; AS-SATA interface

two. Maxtor difficult disk identification

Because the introduction in the seventh generation of gold diamonds, Maxtor's item line has been confusingly named. For instance, the seventh generation of the gold diamond series is named DiamondMaxPlusD740X, and the sixth generation with the gold diamond is named DiamondMaxPlus60. . So named in the exact same way, the name of your ninth generation of diamonds is DiamondMaxPlus9. For the goods from the sixth generation for the ninth generation of Golden Diamond, it truly is DiamondMaxPlus in front of all Golden Diamond series tough drives. In contrast, all Maxtor's Star Diamond and American Diamond series challenging drives are marked with DiamondMax, which can be only significantly less than the Gold Diamond series Plus.

Prior to the Maxtor challenging drive has been making use of a 7-digit quantity, but in the diamond series DiamondmaxPlus9, its challenging drive number has grow to be 13. Nonetheless, what exactly is beneficial for identifying the difficult disk will be the previous 7-digit quantity. The Maxtor number is largely 'series quantity + maximum capacity of this series of difficult disks + first digit + capacity + interface variety + quantity of disc heads', as shown in Figure 1-38.

The very first element represents the solution series and model. The which means of each and every worth is:

'3' is 40GB or less, '9' is 40GB or a lot more, this series may be the star diamond generation;

'2R' indicates Fireball531DX American diamond generation;

'2B' indicates the second generation of Fireball541DX diamonds;

'2F' means Fireball3;

'4W' signifies Diamondmax536DX the second generation of star diamonds;

'4D', '4K', 444G 'are expressed as the third generation of Diamondmax540X star diamonds;

'4R' indicates the fourth generation of Diamondmax16 star diamond;

'5T' suggests the sixth generation of DiamondmaxPlus60 gold diamond;

'6L' means the seventh generation of DiamondmaxPlusD740X gold diamond;

'6E' signifies DiamondmaxPlus8;

'6Y' means DiamondmaxPlus9;

'6v' is indicated as DiamondmaxPlus10.

The second component shows the capacity in GB. By way of example, '080' or '200' signifies 80GB or 2000B, respectively.

The 'X' inside the third component indicates the buffer capacity, interface and spindle motor variety.

'D' implies UtralATA / 33;

'U' signifies UtralATA / 66;

'H' signifies UltraATA100 interface, 2MB cache;

'J' means UltraATA133 interface, 2MB cache and use ball bearing motor (BallBearingMotor);

'L' implies UltraATA133 interface, 2MB cache and use liquid bearing motor (FluidDynamicBearingMotor);

'P' suggests UltraATA133 interface, 8MB cache and use liquid bearing motor;

'M' suggests SerialATA150 interface, 8MB cache and use liquid bearing motor;

'E' implies SATA interface, with far more than 8MB cache and use liquid bearing motor.

The 'X' inside the fourth aspect indicates the amount of heads used, which is, the amount of recording surfaces, which may also be utilised to calculate the capacity of a single disk according to the formula of 'single disk capacity = 2x total tough disk capacity / heads' Having said that, beginning from DiamondmaxPlus9 in the Golden Diamond series, the quantity becomes '0', but we understand that DiamondmaxPlus9 of your Golden Diamond series are all merchandise having a single disc capacity of 80GB.

three. Western Digital Series Hard Disk Identification

At present, Western Digital really hard drives are essentially divided into 3 categories: high-end BB series, mid-end AB series, and low-end EB series. Among them, only BB series challenging drives are 7200 rpm merchandise. The Western Digital difficult drive number normally consists of your main number as well as the further number, but Western Digital has no particular meaning for the retail market to disclose the added quantity.

Western Digital's numbering format differs based on the product series, and the numbering process is concise and clear, consisting of 12 numbers or letters. Amongst the 12 numbers, the very first six numbers are principal numbers, along with the final six numbers are further numbers. The primary series of caviar around the desktop market place is marked as 'Vendor Code + Capacity + Speed, Cache + Interface Type', as shown in Figure 1-39.

'WD' would be the abbreviation of Western Digital, indicating that it really is a item of Western Digital Corporation.

The initial 6 main numbers:

The first component could be the difficult disk capacity, usually composed of 3 to 4 digits, the unit is GB. For example, 3-digit '400' means 40GB. 4-digit '1600' implies 160GB.

The second part will be the really hard disk speed and cache capacity.

'A' means a caviar hard disk having a speed of 5400r / min;

'B' means a caviar really hard disk using a speed of 7200r / min;

'E' implies Protege series difficult drives with a speed of 5400r / min;

'J' suggests a high-end caviar tough disk having a rotation speed of 7200r / min and also a data cache of 8MB;

'G' suggests the highest-end desktop difficult drive Rapfor series having a rotation speed of 10000r / min and a data cache of 8MB.

'X' in the third element indicates the type of interface;

'A' implies UltraATA / 66 or earlier interface kind;

'B' means UltraATA / one hundred;

'W' indicates really hard disk utilized in a / V (Digital Audiovisual) field;

'D' means SerialATA150 interface.

The fourth part represents the OEM buyer logo. At present, Western Digital's solutions for the retail market have two numbers with the number '00'. If it is actually other characters, it is actually the code from the OEM consumer. Various numbers correspond to distinctive OEM clients, and tough drives of this quantity are often not for the retail marketplace.

The fifth element represents the single disk capacity from the hard disk, the unit is GB. 'C' stands for a really hard disk having a capacity of 40GB, 'D' stands for 66GB, and 'E' stands for 83GB.

The sixth aspect shows the version code with the hard drives in the identical series, which changes with different series.

'A' indicates 7200r / min, BB series of UltraATA100 interface;

'B' indicates 5400r / min, AB series of UltraATA66 interface;

'P' indicates 5400r / min, EB series with UltraATA100 interface;

'R' indicates 7200r / min, UltraATA100 interface, JB series with 8MB cache.

Within the single-disc 66GB and 83GB solutions, other letters for instance 'U' and 'V' also appear, corresponding towards the JB series and BB series products, respectively.

The last element is represented because the firmware version of your tough disk. At present, the widespread ones are typically 'A0'.

Taking the challenging disk quantity of 'WD1533AA-OOANAO' as an example, it may be recognized from the major number that this is a hard disk having a capacity of 15.3GB and 5400r / min made by Western Digital.

For the new SerialATA150 interface tough disks from Western Digital, if the most important 6-digit number is 'WD2500JD', you'll be able to understand that it's a really hard disk with a speed of 7200r / min, a data cache of 8MB, in addition to a SerialATA150 interface. Also for the Western Digital Corporation Raptor (Raptor) series of the most high-end desktop tough drive, its major quantity 'WD740GD' also represents a lot of the information and facts, its capacity is 74GB, the speed has 10000r / min, the information cache is 8MB, making use of SerialATA150 interface.

four. Samsung tough drive recognition

At present, Samsung (Samsung) tough drives are all SpinPoint series, this series is divided into two categories of P and V. The numbering format is 'series model + speed + capacity + cache + number of heads + interface type', as shown in Figure 1-40.

The initial aspect represents the really hard drive item household. ' recovery deleted partition ' stands for SpinPoint, along with the present Samsung really hard drives available are all SpinPoint series.

The second element represents the product series of distinctive hard disk speeds. 'V' stands for 5400r / min V series, although 'P' stands for 7200r / min P series.

The third aspect represents the difficult disk capacity, and its unit is GB. If items with far more than 100GB could appear inside the series, three-digit indicators are utilised, like '080, 120', but in the event the cache is 8MB, most of their indicators will grow to be '081, 121'.

The fourth aspect represents the numbering sequence of merchandise with all the exact same capacity applying various technologies. Their variations are often in single-dish, cache capacity or single / dual-head style. Frequently speaking, '0' implies 2MB cache, '1' means 8MB cache, but you will discover exceptions.

The fifth element represents the number of tough disk heads. The single-disk capacity of its tough disk may also be calculated accordingly.

The sixth part represents the tough disk interface type. 'D' represents the early UltraATA66 interface, 'H' represents the UltraATA100 interface, 'N' represents the UltraATA33 interface, and 'C' represents SerialATA150, which can be the Serial ATA1.0 interface.

The new naming convention for Samsung difficult drive numbers: It truly is represented by 5 sets of letters, namely [1,2] [3,4] [5] [6] [7].

[1,2] Two letters represent the loved ones of tough drive items, 'HD' stands for desktop kind, 'HE' stands for commerciality, 'HM' stands for notebook really hard drive, and 'HX' stands for external form. [3, 4] Two digits represent the capacity in the tough disk, and its unit is GB, which is constant with all the classic naming guidelines. [5] The third quantity doesn't have any which means for the time getting. The fourth group [6] represents the capacity unit / head number of the first English character Samsung series really hard disk. The second English: represents the series of Samsung challenging drives.

'V' stands for V series tough disk, the speed is 5400r / min;

'W' stands for W series challenging drives, the speed is 5400r / min;

'P' stands for P series difficult disk, the speed is 7200r / min.

The 3rd, 4th and 5th characters represent the typical capacity of your really hard disk; the 6th, 7th and 8th characters represent the arrangement order of your challenging disks with the same capacity; the fifth group [7] English characters represent the interface types supported by the difficult disk.

'A' stands for E-IDE / ATA interface;

'S' stands for SCSI2 interface;

'U' stands for UltraSCSI interface;

'D' stands for UltraATA-66 interface.

The new Samsung tough disk can straight read the difficult disk parameters around the disk surface. As shown in Figure 1-41, the Samsung tough disk features a capacity of 1000G7200 to 32M cache.

5. Hitachi really hard drive recognition

The Hitachi series difficult disk numbering rule is 'HDS + speed + maximum capacity of the series + product capacity + item series code + really hard disk height + interface form + cache', as shown in Figure 1-42.

'HDS' signifies Hitachi (HITACHI) Deskstar series really hard disk goods.

The first component indicates the speed in the hard disk. If it is actually marked as '42', '54', '72', '10', '15', and so forth., the speed of this really hard disk is 4200r / min, 5400r / min, 7200r / min, 10000r / min, 15000r / min.

The second portion shows the maximum capacity in the product series in GB. '10' means that the maximum capacity in the product is 100GB.

The third aspect may be the really hard disk capacity, along with the unit is GB or 10GB. For example, '80' means 10GB, and '25' means 250GB.

The 'X' in the fourth element indicates the algebra of your really hard disk.

The 'X' in the fifth element indicates the height with the challenging disk, which can be exactly the same as the other numbers.

The two 'X' inside the sixth portion indicate the interface kind of the hard disk, you can find 'AT' and 'ST'. They are represented as UltraATA100 interface and SerialATA150 interface.

The 'X' inside the seventh aspect represents the capacity of the really hard disk cache, there are numbers '2' and '8' '32'. It represents hard disk solutions with 2MB cache and 8MB and 32MB cache respectively.

6. Fujitsu really hard disk recognition

Figure 1-43 shows the Fujitsu hard disk logo.

The very first tough drive model of Fujitsu is M, which implies OEM merchandise to distinguish it from other Fujitsu products. The second character indicates the technical sort of your difficult disk. 'A' implies 3.5-inch SCSI, H suggests 2.5-inch ATA.

The third character represents the algebra of item upgrading.

The fourth place is definitely the disk diameter of 2.5 inches, indicated by only; three.five inches by three.

The fifth, sixth, and seventh digits would be the capacity. The 3 digits of your HN16L and V40 series are straight expressed in GB. By way of example: 320 = 320GB, 040 is 40G.

The eighth and ninth digits are interface forms.

AT = PATA, 4200r / min, UltraATA100, 2MB;

AH = PATA, 5400r / min, UltraATA100, 8MB;

BT = SATA, 4200r / min, 8MB;

BH = SATA, 5400r / min8MB;

MP = Ultra160SCSI / 68PIN;

MC = Ultra160SCSI / SCA-280PIN;

FC = FCAL-2;

NP = Ultra320SCSI / 68PIN;

NC = Ultra320SCSI / SCA-280PIN.