Place of origin: United States Brand introduction: Seagate was founded in 1979 and is now the world's largest manufacturer of hard drives, disks, and read/write heads, Seagate is a global leader in the design, manufacture, and sale of hard drives for use in businesses, desktop computers, mobile devices, and consumer electronics.
Seagate's position in the hard drive industry is significant, as it is also the main sponsor of the SerialATA standard, and has always played a pioneering role in the field of 7200 RPM IDE hard drives, from the industry's first 7200 RPM hard drive, the Big Grizzly Bear, to the Cool Fish V today, Seagate has introduced six generations of 7200 RPM hard drives. Seagate has launched six generations of 7200 rpm hard drives, and although the initial products were not well received, a successful Cool Fish IV has made Seagate leap into the hearts of many users.
As digital content, such as music, videos, photos, and games, has increasingly made its way into people's daily lives, static data storage is starting to become obsolete. Today's on-demand world demands that your digital content be accessed, ****enjoyed, and protected with dynamic storage solutions that give you the freedom to work, create, and interact anywhere, anytime. From protecting precious family photos and personal music collections, to developing the next generation of consumer electronics devices and large enterprise networks, Seagate provides advanced digital storage solutions that meet the needs of today's consumers and tomorrow's applications.
Hitachi: (Japan)
Hitachi came to China in the 1960s and became one of the few foreign companies to enter the Chinese market in the early days. Over the years, Hitachi has actively explored the Chinese market and introduced a large number of advanced technologies and products. With the support of the government, Hitachi's investment endeavors in various parts of China have grown significantly.
In the 1970s, Hitachi took the lead in setting up an office in Beijing and became the first Japanese manufacturing company in Beijing. During this period, Hitachi introduced a large number of complete sets of equipment and technology to China, including thermal power generation equipment, steel rolling equipment, computers for weather detection, port cargo handling equipment, and color TV assembly equipment, etc., which contributed to China's infrastructure construction projects at that time.
Entering the 1980s, against the backdrop of China's economic development and the emergence of a peak in consumption of television sets and other products, Hitachi responded to the then-promoted cooperation in technology and localization, and through cooperation in transformers, motors, and household appliances such as televisions and washing machines, Hitachi's business in China achieved even greater development.
From the early 1990s, Hitachi responded to the Chinese government's economic policy of attracting investment and encouraging foreign investment, and actively carried out investment projects in China. At present, Hitachi has more than 100 group companies within China. Hitachi's members are active in the fields of electric motors, electronic equipment, household appliances and information communication, and are dedicated to providing high-quality products and services to the Chinese society.
After decades of hard work, Hitachi and China have established a deep and solid cooperative relationship, laying a good foundation for the development of new business in the future. Hitachi cherishes the friendship with China, and at the same time, with the integration of the global economy and the further opening of the Chinese market, Hitachi hopes to become the best solution partner in China by bringing more branded products and services to the Chinese market.
Hitachi, so far, has started work in many business fields in China. In October 2004, Hitachi formulated and proposed a new business strategy "The Most Trusted Partner in China" in order to strengthen its business development in the future. These are "Power and Industrial Equipment Systems", "Building Systems", "Urban Transportation Systems", "Information Communication Systems", and "Information Technology Systems", which Hitachi will focus on in China, Information and Communication Systems", "Medical Systems", "Consumer Electronics", "Construction and Resource Development Systems", "Automotive Systems", and "Power and Industrial Equipment Systems". ", "Automotive Systems and New Materials for Automotive Systems", "Information Electronics and Components and Materials for Digital Home Appliances", and a wide range of other business fields.
Western Digital: (U.S.A.)
Western Digital Corp (WDC), a globally recognized hard disk drive manufacturer, was founded in 1979 and is currently headquartered in California, U.S.A., with subsidiaries or offices around the world, providing memory products to users on all five continents of the globe
- -Mainstream desktop 320GB SATA hard drive side-by-side test
Windows Vista, 8GB; large 3D games, 8GB-9GB; HD movies, 15GB-30GB...... various applications and operating systems are becoming more and more feature-rich and interface-rich, and at the same time, the rich, more and more gorgeous interface, while the volume of software is also growing rapidly, especially game software, now the large-scale 3D games can easily be 8, 9 GB, so that our hard disk space stretched; on the other hand, the gradual popularization of large-capacity high-definition video, but also let us put forward a new demand for the capacity of the hard disk - a 1080P HD video can even be as high as dozens of GB! This makes us in the new installation or to add hard disk, had to choose the hard disk capacity of the standard to improve, from last year's 160GB, the first half of this year's 250GB, upgraded to the latest standard - 320GB.
Question: Q: What size hard disk should we buy now?
Once upon a time, when installing a computer, choose an 80GB hard drive will feel very bullish, that time the Windows 2000 operating system but requires 1GB of space only, large games are almost 1GB or so, RM movies are only 400MB in size, 80GB can be loaded with a lot of... .... But gradually, the operating system has become larger, a game can also be done 4 GB to 8 GB, everyone on the requirements of the movie quality has also increased, how to look at the resolution of 720P or more, a several GB, 80 GB is not enough, so in the last year, 160 GB has become the mainstream ....... And now, whether it is CPU manufacturers, graphics card manufacturers or display manufacturers, are speculating on the concept of high-definition video, a period of time is popular around the world, a high bit rate 1080P, VC-1 encoding of high-definition movies about 30GB or so ...... your 160GB hard drive can hold a few high-definition movies? The choice of a larger capacity hard disk is imperative.
D2
Answer: 160GB x 2 is more costly compared to 320GB, and to achieve high-capacity storage, a 320GB hard drive is the mainstream choice today.
To determine the price/performance ratio of a hard disk, we can use the "capacity-to-price ratio". The so-called "capacity-price ratio" refers to the ratio of the hard disk capacity to the price, the higher the ratio, it means that we can use the same price to buy a larger capacity hard disk. Let's take a look at the current 160GB, 320GB, and even 500GB hard drives.
160GB
7200rpm/SATA 8MB 320GB
7200rpm/SATA 16MB 500GB
7200rpm/SATA 16MB
Retail Price ($) 465 670 1095
Capacity Ratio 344MB/$ 477MB/$ 450MB/$
We can clearly see that the price/performance ratio of a 320GB hard drive is much higher than that of a 160GB product, and if you use a dual 160GB hard drive to achieve a 320GB capacity, the price is even higher than that of a single 320GB product. The 500GB hard disk, although the cost-effective than 160GB, but the unit price is higher, the average user is difficult to accept, and "capacity to price ratio" is not as good as the 320GB, so at the same time to consider the capacity and the "cost-effective" two aspects, 320GB has a more The 320GB has a clear advantage when considering both capacity and value for money.
Question: What specifications and parameters should we look for when buying a hard drive these days?
Is it all about RPM and capacity? Isn't it too unskilled to identify them one by one? What other parameters do we need to pay attention to?
Answer: Of course not, RPM and capacity are two important performance parameters, but they are not the whole story, and in addition to focusing on the performance of the hard disk, we should have a comprehensive understanding of its reliability, as well as heat and noise control, in order to choose the right product for us. Here we will introduce the main hard disk specifications parameters.
Hard drive must know the technical chapter of the interface type
Hard drive data interface mainly IDE (PATA), SATA, SCSI, SAS, and optical and so on. Among them, SCSI, SAS and fiber-optic interfaces are mainly used for servers and workstations, for desktop-level products, mainly PATA and SATA-based, PATA is what we often call 80-pin IDE interface, there are PATA100 and PATA133 as the mainstream products, but in the SATA2 (SATA 3Gb/s) interface hard drive popularity in the region In the case of SATA2 (SATA 3Gb/s) interface hard disk, has gradually faded out of the market. Therefore, for the mainstream 320GB hard drive, we mainly focus on testing products with SATA2 interface, while for the PATA products that will be withdrawn from the market soon, we don't need to pay attention to them anymore unless there is a special need.
Here's a quick overview of the SATA interface specification. As opposed to PATA (Parallel ATA), SATA transfers data in a serial fashion, so it can achieve higher transfer speeds than parallel interfaces, with SATA 1.0 being able to achieve 1.5Gb/s, and SATA2 being able to achieve 3Gb/s. However, it is important to note that it is not the SATA interface that can achieve 3Gb/s transfer speeds that can be called SATA2. The SATA2 specification, in addition to including transfer speeds that must reach 3Gb/s, must also support NCQ (Native Command Queuing), Port Multiplier (Port Multiplier), Staggered Boot (Staggered Boot), and SATA 2.0 (SATA 1.0). ), staggered start (Staggered Spin-up) and a series of technologies. Of course, we still customarily refer to SATA 3Gb/s devices as SATA2 devices, it's just a matter of people understanding the details.
Current hard drive products that support the SATA 3Gb/s interface can be switched between SATA 1.0 and SATA 3Gb/s modes, which is usually set up via a jumper cable, and only Hitachi's products are set up via software.
Basic structure of a hard disk
Capacity and single-disk capacity
The concept of capacity is clear to everyone, but it is important to point out that hard disk vendors generally calculate the total capacity of a hard disk by using a formula of 1MB=1,000,000Bytes, so the actual formatted capacity will be a little less than that on the hard disk's label (the system calculates the capacity by using the formula of 1KB As we know, the way to increase the capacity of a hard disk is to increase the number of platters on one hand, and to increase the data density of the platters on the other. Simply increase the number of platters is a direct way to increase hard disk capacity, but after all, will be subject to heat, hard disk volume limitations, the current number of platters up to 5, in the case of the number of platters can not be increased to enhance the single-disk capacity is the only way to enhance the hard disk capacity.
In addition to reducing the number of platters and heads used to reduce manufacturing costs, increasing single-disk capacity also increases the amount of data that the heads can read at one time due to the increased recording density, thus increasing the internal transfer speed of the hard disk. At present, many hard disk manufacturers have introduced hard disk products with perpendicular recording technology. Compared with the traditional horizontal recording method, perpendicular recording greatly improves the recording density of the hard disk, so hard disks with perpendicular recording can achieve a very high single-disk capacity, for example, with perpendicular recording of the Seagate CoolFish 7200.10 hard disk, the capacity of a single disk has reached 188GB, and to achieve the capacity of 320GB only requires two disks. It takes only two disks to achieve the 320GB capacity. Therefore, when we buy a hard disk now, it is better to choose a product with perpendicular recording technology, which will perform better in terms of performance.
Cache, RPM and Motor
The cache acts as a buffer in the hard disk, regulating the transfer of data between the two, and the size of the cache has a direct impact on the performance of the hard disk, especially the reading and writing of a large number of small files. Different hard disks have different cache sizes, and the 8MB cache is more common on current products, while 320GB high-capacity hard disks are generally equipped with a 16MB cache, so they perform better when reading and writing a large number of small files.
[ Last edited by MR.DILAB on 2007-9-30 11:06 PM ]
The speed of the hard drive is the main factor affecting its performance, and the mainstream hard drives are now designed to operate at 7200rpm, although some high-end products are designed to operate at 10,000rpm, but the high speed of the hard drive results in higher heat generation and faster wear and tear of the motor bearings. This also reduces the reliability of the hard drive to a certain extent, so for now, 7200rpm is a more balanced solution for performance and reliability.
The servo motor used in the hard disk - also known as the motor, the bearing technology it uses is very important, directly affecting the hard disk's operating noise and degree of durability, and the current mainstream hard disk products are used in the design of the liquid bearings, which replace the ball with an oil film, which avoids direct friction between the metal surfaces and reduces noise and heat generated by friction to a minimum. This minimizes noise and heat generated by friction, reduces wear and tear on the bearings, and extends the life of the hard drive.
Average seek time
Average seek time is one of the most important performance parameters of a hard drive, and is affected by the speed and recording density of the drive. The higher the recording density of the drive, the shorter the MTBF - simply because the heads need to be moved a shorter distance for positioning due to the increased recording density - at 7200 rpm for both drives. A shorter average seek time means that the drive performs better when reading and writing a large number of small files, because that's when the heads are moving the most.
In the case of the current 320GB hard drives, the recording density has been greatly increased by the use of perpendicular recording technology, so their nominal average seek times are all under 9ms, which is significantly faster compared to the previous generation.
It is believed that through our introduction, you already have a certain understanding of how to judge the performance of a hard disk, so now we will use this knowledge to carry out a comparison test on the mainstream 320GB hard disk in the market, to find out the most suitable for their own products.
Hard disk rush test chapter question: the current mainstream 320GB hard disk specifications are similar, we should buy which brand of products?
All are 7200rpm, all have 16MB cache, and all have SATA2 interface ...... How do we go about choosing?
Answer: It's simple, practice is the only test of truth - let's put them to the test with the most rigorous tests! Before we proceed to the test, let's take a look at the detailed specifications and technical parameters of several mainstream 320GB SATA hard disks.
Product description
Hitachi HDT725032VLA360
Manufacturer Hitachi
Series Deskstar T7K500
Model No. HDT725032VLA360
Firmware Version V540
Plate Size 3.5〃
Interface SATA2 (3Gb/s)
Formatted Capacity 320,072MB (1MB=100,000,000Bytes)
Number of Disks 2
Single Disk Capacity 167GB
Speed 7200rpm
Average Latency 4.16ms
Nominal seek time 8.5ms (read/write)
Cache capacity 16MB
Maximum shock resistance
(Operational/non-operational, 2ms) 70G/350G
Special technology Ramp Load/Unload Technology
Hot Plug
RoHS
Hitachi HDT725032VLA360 Front View
Hitachi HDT725032VLA360 features both a SATA power connector and a D-header 4-pin power connector
Hitachi HDT725032VLA360 Backside of the board on the surface of the circuit board is the control chip. The cache is on the back of the board
Hitachi, one of the three main hard disk drive manufacturers, has launched many 320GB hard disk drive products, and these 320GB products currently belong to the T7K500 series. Prior to this, Hitachi had been the first to launch a total capacity of up to 500GB 7K500, but the 7K500 only 500GB products, while the T7K500 has a different capacity of the product, in terms of 320GB products, the T7K500 has a different interface, different cache version, this test we chose to use the SATA2 interface, providing 16MB cache The model number for this test is HDT725032VLA360.
The T7K500 series has a single-disk capacity of 167GB, so only two platters are needed to achieve a total capacity of 320GB, which is easily achievable for hard drive products that use perpendicular recording technology. In addition, Hitachi's T7K500 offers "Ramp Load/Unload Technology" to further utilize the storage surface of the platter's inner ring to increase single-disk capacity.
Did you know: Ramp Load/Unload Technology. Previously, hard drives had a "landing zone" on the inner rim of the platters, which was used to protect the platters and heads by providing a place for the heads to rest when no power was applied, but which could no longer be used to record data and was therefore wasted. With Ramp Load/Unload Technology, this "landing zone" is no longer needed and the capacity of a single disk can be increased to some extent.
Additionally, the HDT725032VLA360's power consumption is quite impressive from a specification point of view, as it consumes almost half the power of similar products when idle, and we'll actually examine its heat generation in later tests. In addition, the HDT725032VLA360 also claims to support a "24×7" operating mode, which means that it supports 7 days of non-stop operation (for non-intensive applications), a standard that was previously reserved for workstation and server versions of the product, but is now also found in desktop products, so it is evident that the HDT725032VLA360 can be used for a wide range of applications. The reliability of the HDT725032VLA360 is a big improvement over previous products.
Seagate ST3320620AS
Manufacturer Seagate
Series Barracuda 7200.10
Model No. ST3320620AS
Firmware Version 3. (3Gb/s)
Formatted Capacity 320,072MB (1MB=100,000,000Bytes)
Number of Disks 2
Single Disk Capacity 188GB
Rotation Speed 7200rpm
Mean Latency 4.16ms
Nominal Tracking Time 8.5ms (read/write)
Cache Capacity 16MB
Maximum Shock Resistance
(Operational/non-operational, 2ms) 68G/350G
Special Technology Hot Plug
RoHS
Front view of the Seagate ST3320620AS in the same form factor as the other CoolFish 7200.10
The ST3320620AS only uses the SATA power connector, which lacks support for the regular power connector, but also prevents users from connecting to two power connectors at the same time and causing damage to the drive
The back of the ST3320620AS is the circuit board, where you can see the controller chip and cache
Seagate is also the first to adopt the vertical recording technology. One of the leading manufacturers of hard drives using perpendicular recording technology, the current Coolfish 7200.10 series uses perpendicular recording technology to boost single-disk capacity to 188GB without increasing power consumption, so the ST3320620AS we chose achieves a total capacity of 320GB using only two platters. See here, perhaps some veteran players will have questions: although the recording density has increased significantly after the hard disk sustained transfer speed will be significantly increased, but the extremely high recording density will not lead to increased difficulty in the search channel, making the average search time becomes longer? Later tests will verify this.
In addition to vertical recording, the ST3320620AS also integrates NCQ (Native Command Queuing) technology, which is an important part of the SATA2 specification, and can significantly improve the efficiency of the hard disk. With the motherboard's Southbridge chipset supporting NCQ, we were able to enable support for this technology in BIOS.
From the specs, the ST3320620AS doesn't push any particular technology, but the overall technical specifications are well balanced, and we expect it to perform well in real-world testing.
Western Digital WD3200YS-01PGB0
Manufacturer Western Digital
Series Raid Edition 16 (formerly Caviar RE16)
Model Number WD3200YS-01PGB0
Firmware Version. 01PGB0
Disk Size 3.5〃
Interface SATA2 (3Gb/s)
Formatted Capacity 320,072MB (1MB=100,000,000Bytes)
Number of Disks 3
Single Disk Capacity 133GB
Speed 7200rpm <
Average Latency 4.16ms
Nominal Seek Time 8.9ms (Read/Write)
Cache Capacity 16MB
Maximum Shock Resistance
(Operational/non-operational, 2ms) 65G/250G
Special Technology TLER (Time-Limed Error Recovery)
Hot Plug
RoHS
Front view of the WD3200YS-01PGB0, a change from the previous all-black color palette
The WD3200YS-01PGB0 also features both a SATA power connector and a 4-array power connector, as well as a SATA1
Western Digital WD3200YS-01PGB0 back board below the control chip and cache
Western Digital in the desktop hard drive products to promote the "Raid Edition" series of products is the most important feature is to adopt a series of server-grade product technology. The most important feature of WD's Raid Edition series of desktop hard disk drives is that they utilize a range of server-class technologies. In addition to 24×7 availability (i.e., continuous uninterrupted operation) and MTBF (Mean Time Between Failure) of 1 million hours (much higher than power supplies and other accessories), they also offer TLER (Time-Limited Error Recovery) technology.
TLER (Time-Limited Error Recovery) is a RAID technology used in enterprise-class hard disk products. As we know, all ATA hard disks are equipped with error recovery and bad sector reset functions. When the ATA hard disk we use for RAID is in the error recovery state, it will not respond to any commands from the RAID controller, and if this state lasts for more than 8 seconds, the RAID controller will automatically start to uninstall the hard disk and carry out data recovery, which is a serious problem for the servers that store important data. The main purpose of the TLER technology is to be able to continue to communicate with the RAID controller for up to 8 seconds while the hard disk is recovering from an error, avoiding the need for a RAID rebuild action.
The WD3200YS-01PGB0 we chose has a single-disk capacity of 133GB, so it requires three platters to achieve a total capacity of 320GB, and therefore a head count of five, which gives Hitachi and Seagate a bit of an edge in terms of single-disk capacity alone. Of course, given the reliability and relevance of the Raid Edition series, it's also appealing to those who need to set up RAID, and we'll put it to the test with real-world tests later.
Test platform: Core 2 Quad Q6600
Heatsink: Tt TMG i2
Motherboard:
ASUS P5K
Memory:
Kingston DDR2 800 1GB x 2
Graphics:
GeForce 8800GTX
This is the first time we've seen the Raid Edition series in action. 8800GTX
Power Supply:
Great Wall BTX-500SD
Optical Drive:
ASUS DWR-1814BLT
Monitor: Great Wall A201
Testing Environment:
Windows XP + SP2
ForceWare 163.44 <
Test Software
HD Tach 3.0
SiSoftware Sandra XII
PCMark05
List of Achievements
HD Tach 3.0 ● Mainly examines the performance of the hard disk in reading data.
Hitachi HDT725032VLA360 Sequential Read Curve
Seagate ST3320620AS Sequential Read Curve
Western Digital WD3200YS-01PGB0 Sequential Read Curve
HD Tach 3.0 Test Data
Hitachi
Hitachi
Hitachi HDT725032VLA360 is the first hard disk drive in the world to be tested by PCMark05
PCMark05
Hitachi HDT725032VLA360. HDT725032VLA360 Seagate
ST3320620AS Western Digital
WD3200YS-01PGB0
Burst Speed 210.2MB/s 208MB/s 196.2MB/s
Random Access Time 13.5ms 12.9ms 13ms
Average Read Speed 61.7MB/s 65.5MB/s 57.1MB/s
CPU Occupancy 1% 1% 1% 1%
HD Tach 3.0 is a commonly used hard drive performance test software, the most critical several hard drive performance indicators can basically be tested by it. From the test results, we can see that Hitachi's HDT725032VLA360 has the best performance in terms of burst speed, reaching a maximum of 210.2MB/s, while Seagate's ST3320620AS surpasses Western Digital's WD3200YS-01PGB0 in the middle. However, in terms of average read speed, Seagate's ST3320620AS comes in first place with an outstanding 65.5MB/s. This can be seen from the continuous read curve, where the overall read curve of Hitachi and Western Digital's products shows a smooth decline, while Seagate's ST3320620AS only starts to decline the curve after the read data reaches 160GB, and thus the The average read speed is higher, but that has a lot to do with the high data density of the platters.
In terms of random access time, the ST3320620AS is still the best performer, staying below 13ms, while the other two products are above 13ms. It seems that the high recording density not only does not increase the difficulty of pathfinding, but also shortens the distance of the head movement, which improves the random read/write speed. Overall, the ST3320620AS has a better overall performance in HD Tach 3.0.
PCMark05 ● Simulates real-world applications to test the actual performance of the drive.
PCMark05 HDD test data
Hitachi
HDT725032VLA360 Seagate
ST3320620AS Western Digital
WD3200YS-01PGB0
XP system boot 9.286MB/s 9.112MB/s 8.811MB/s
Program Load 7.340MB/s 7.193MB/s 7.271MB/s
Usual Application 6.120MB/s 5.978MB/s 6.144MB/s
Virus Scan 123.589MB/s 113.478MB/s 89.908MB/s
File Write 65.162MB/s 67.336MB/s 61.934MB/s
We can see that the Hitachi HDT725032VLA360 outperforms the Seagate ST3320620AS in system startup, program loading, and usually application and virus scanning due to the higher burst transfer capability, while the Western Digital's WD3200YS-01PGB0 has a slightly lower overall performance performance due to its smaller single-disk capacity and lesser recording density than the previous two. Of course, the Seagate ST3320620AS is still the strongest when it comes to sustained transfers, with the ST3320620AS topping the charts with an average write speed of 67.336 MB/s.
SiSoftware SandraXII ● Comprehensive and Detailed Hard Drive Benchmark Performance Tool
SiSoftware Sandra Ⅻ Hard Drive Test Data
Hitachi
HDT725032VLA360 Seagate
ST3320620AS Western Digital
WD3200YS-01PGB0
Average Access Speed 61 MB/s 66MB/s 55MB/s
Random Access Time 7ms 7ms 8ms
Buffered Read 201MB/s 193MB/s 186MB/s
Sequential Read 71MB/s 78MB/s 64MB/s
Random read 47MB/s 50MB/s 42MB/s
Buffered write 157MB/s 120MB/s 92MB/s
Sequential write 69MB/s 77MB/s 63MB/s
Random write 47MB/s 42MB/s 46MB/s
Actual file copy
Actual file copy test (same-disk copy)
Hitachi
HDT725032VLA360 Seagate
ST3320620AS Western Digital
WD3200YS-01PGB0
1.6GB, 9100 small files 123 seconds 125 seconds 136 seconds
Single 650MB file 23 seconds 22 seconds 24 seconds
As you can see, when copying multiple small files,, the Hitachi HDT725032VLA360 has the advantage, while when transferring large files consistently, the Seagate ST3320620AS performs better and the Western Digital The WD3200YS-01PGB0 lags behind across the board, and the smaller single-disk capacity should be a big reason why.
Temperature and noise
The temperature of the drive was measured by DTemp, and the noise was compared by actual use.
Temperature test data (ambient temperature 26°C)
Hitachi
HDT725032VLA360 Seagate
ST3320620AS Western Digital
WD3200YS-01PGB0
Standby temperature 47°C 47°C 43°C
Temperature after 30 minutes of full load 49°C 47°C 44°C
Temperature after 30 minutes of full load 49°C 47°C 43°C
Temperature after 30 minutes of full load After 30 minutes of full load temperature 49℃ 47℃ 44℃
Temperature, Hitachi HDT725032VLA360 is relatively higher, Western Digital WD3200YS-01PGB0 is relatively cool; in terms of noise control, the Western Digital did a better job of working and feel the operation of the smoother, less noisy, while Seagate's ST3320620AS The ST3320620AS from Seagate has a more pronounced "clicking" sound that users can clearly feel, while Hitachi's performance is in the middle of the pack, but still considered to be well controlled.
Engineer comments on the hard disk capacity to improve the speed is really fast, in the perpendicular recording technology is applied to the desktop hard disk, more than 300GB hard disk has been very common, on the other hand, the application of perpendicular recording greatly enhance the capacity of a single disk, which makes the recording density has been improved, and the hard disk's read and write speeds have been improved. The three 320GB hard drives we tested show just how much of an advantage products with perpendicular recording technology have over their traditional horizontal counterparts.
Let's summarize the test scores for the three 320GB drives in question:
The Hitachi HDT725032VLA360 demonstrated strong burst transfer capability in all three tests, making it a better performer when, for example, programs are loaded, such as large games.
The Seagate ST3320620AS relies on perpendicular recording technology for its high single-disk capacity, which allows it to perform well when transferring data consistently, and it should be a good choice to use it for copying and storing large HD movie files, and to save a lot of time if you want to fill up a 320GB hard drive with the Seagate ST3320620AS.
Western Digital WD3200YS-01PGB0 Although the performance is mediocre due to the small capacity of a single disk, it generates relatively little heat and works with good noise control, which is suitable for office and home users who like stability and quietness, which is in line with its Raid Edition series of products in pursuit of a stable and reliable positioning originally, and, in addition, with support for TLER technology, the Western Digital WD3200YS-01PGB0 will provide a more stable and reliable performance. In addition, the WD3200YS-01PGB0, which supports TLER technology, is used to form a RAID, which is also a very reliable program.
It is believed that through the previous test data and analysis, we have a deeper understanding of the three mainstream 320GB SATA2 hard drive, how to choose the right 320GB product is no longer difficult, and through the summarization of this knowledge and information, the future choice of higher-capacity hard drive, you can also do a good job, the lineup does not mess up
.