Hard drive speed issues! Slow hard drive transfer speed!

How to say, for example, if you copy things at home, just copy from your own computer, and the game of the Internet café is on the server, when you take the test, there is an extra link from the server to the client you use and then to your hard disk, so it is slow, if you catch up, others are also dragging things from the server, or **data, it will also affect the speed of your copying things. But there's also your hard drive port that's or of course hurry. Maybe yours is an internet café, and it's also very slow.

If it's all of them, it's generally 9g in about 18 minutes.

Hope it helps.

It's normal to have a speed of almost a minute.

The general speed can reach the left and right, and it is no problem.

But it also depends on what the computer is doing.

For example, if you're doing an antivirus or you're watching a movie or something like that, it's going to be slow.

Hard drive temperature is also one of the factors that affect the speed.

You can leave your computer for a while, and it is recommended to turn it on in the morning and then turn off some startup items such as PC Manager in the process of Task Manager.

If you test the copy speed again, it is estimated that it must be higher than 23mb s.

Hope it helps.

It is related to the maximum write speed of the storage device, and the write speed of the hard disk and the mobile phone memory card cannot be compared.

First, let's talk about the misunderstanding of internal transfer rates.

For example, the internal transfer rate is 683Mbit s, which does not mean that the 683Mbit read in 1 second is all usable user data, and it cannot be simply divided by 8 to get a transfer rate of 85Mbyte S, and the actual measurement speed is about 60Mbyte S. This is because the hard drive stores not only pure user data, but also location information, check sums, and so on. This internal transfer rate in mbit includes all of this information, so it does not reflect the true speed.

What should I see? Conscientious hard drive manufacturers will write the transfer speed in mbytes on the official website, for example, it is written as 58mbytes.

Internal transfer rate refers to the rate of data transfer between the head of the hard disk and the cache, which is simply the speed at which the hard disk reads data from the platter and then stores it in the cache. The internal transfer rate can clearly show the read and write speed of the hard disk, and its level is the decisive factor to evaluate the overall performance of a hard disk, and it is the real standard to measure the performance of the hard disk. Only by effectively increasing the internal transfer rate of the hard disk can the performance of the disk subsystem be directly and significantly improved.

At present, all hard disk manufacturers strive to improve the internal transmission rate of hard disks, in addition to improving signal processing technology and increasing speed, the most important thing is to continuously increase the capacity of a single disk to improve linear density. Since the higher the capacity of a single disk, the higher the linear density of the hard disk, the seek frequency and travel distance of the head can be reduced accordingly, thereby reducing the average seek time and increasing the internal transfer rate. Although hard disk technology is developing rapidly, the internal data transfer rate is still at a relatively low (relative) level, and the low internal data transfer rate has become the biggest bottleneck in the performance of hard disks.

At present, the internal data transfer rate of mainstream home-grade hard disks is basically still around 70 90 MB s, and this data will drop to even lower when working continuously.

That's pretty much the case with all hard drives, and you're within the normal range.

This may not be standard:

1.Convenient formatting and reinstallation, see if it's really slow to execute 2

2.Use the XP installation disc to boot, execute the MHDD in the DOS toolbox, where scan, look at the color of each hard disk cluster, there is a difference between fast and slow, too much brown must be slow, you can try to fix it.

Hard disks are stored in an outside-in order, the opposite is true for optical discs!

That is, the outermost ring is the 0 channel of the hard disk, and the outermost ring is the farthest from the center, and the speed of the hard disk is fast when it rotates, and the further it goes, the slower the speed is, so we generally install the system on the C disk, which is the most advanced partition, and the speed is the fastest!

The last partition is also the slowest!

Abnormal. Take a look at the hard board drive.

It's not normal, you use a tool to detect it, it's probably a bad sector.

hdtune

You're definitely not right.

No matter how fast the SATA3 read speed is, it is also limited by the internal data transfer rate of the hard disk.

Internal transfer rate refers to the rate of data transfer between the head of the hard disk and the cache, which is simply the speed at which the hard disk reads data from the platter and then stores it in the cache.

If both are mechanical hard disks, the internal transfer rate will not exceed 170MB s, and the average measured average of 150M s for Toshiba 1TB is the normal value, because its internal transfer rate is about 150MB.

Hitachi 250G measured an average of 100MB s, and the official internal transmission rate of this disk is 843 Mbits (=105Mb S, the conversion relationship between Mb and Mbit is 1B=8Bit).

You can do the read and write tests with HD Tune and look at the averages.

Quite normal, most of Hitachi's are 150

1. The carrier in the mobile hard disk is the same as the ordinary hard disk, which is generally divided into mechanical hard disk and solid state disk, and the size is divided into inches (larger) and inches (smaller).

2. Mobile hard disks and ordinary hard disks are transmitted by cables, and different interfaces support different speeds, usually external interfaces have, and the built-in interfaces are now generally SATA Note: 1GB s=1024MB S, 1MB S=8MB S, uppercase b is byte translated as byte, equal to 8 units lowercase b, bit), so theoretically, the external mobile hard disk will be slower than the internal hard disk. There are other interfaces, such as Apple's Thunderbolt connector (10GB s), which are a little faster than the built-in ones.

3. In terms of actual usage, when using the interface, the maximum speed of the mobile hard disk is 40-60MB s, and the speed of the mobile hard disk of the interface is 60-140MB s (depending on the performance of the hard disk itself), and the speed of the mobile hard disk is not easy to reach the maximum value of the theoretical speed of the interface. If the internal hard disk is a mechanical hard disk, the speed is 100-160MB s, and the SSD can reach 400MB s or even higher.

4. So, under normal circumstances, the read speed of ordinary hard disks is higher, and there can be at least a difference of 20mb s.

I don't know if it's a murmur or a normal sound for reading and writing. If it is squeaky all the time, however, whether the hard drive light is on or not, then there is a problem. If the light is on, however, it is normal to sound intermittently.

In terms of read and write speed, the write speed is a bit problematic: I don't know what interface you have, if it's SATA2, it should be faster. It is recommended that you try it on another motherboard.

The reason for the big difference between hard disk reads and writes to 55M s is in the file size of reads and writes.

Hard disks are fast when reading and writing a single large file (e.g., 2G), slow when reading and writing a batch of small files (e.g., 200 files of 10 MB), and slow when copying a batch of small files with only a few ks or tens of kilobytes. This is because the physical location of the hard disk when writing a batch of small files on the platter can be said to be random, that is, it can write wherever it is free, not in the order of the files, which is by design, so a batch of small files may be scattered in different physical locations on the platter. In fact, the actual reading and writing is still very fast, but the time spent on reading and writing is insignificant compared with the time spent on positioning, and the read and write speed displayed by Windows is from the point of view of appearance.

Hard drives may not be the same, one is the one is ,,, read speed varies greatly.

It is possible that the CPU or memory is too low.

Is there a bad sector on your hard drive, listen to whether there is any abnormal sound when you boot it.

Under what circumstances did it happen?

How is it read? From C to D? Or from hard drive to portable hard drive?

It can be used, but the speed can't be reached, it can only be wasted.

According to your description, it is because the hard disk has been partitioned once that it cannot enter the hard disk when it is turned on, and it should be said that there is a problem with the main boot sector of the hard disk, and it is unlikely that the hard disk will be physically damaged.

It must be the problem of the main boot sector (that is, the 0th side 0 lane 1 sector of the hard disk), the main boot sector contains two parts, one is the master boot record (MBR), its role is to boot the system from a certain drive letter of the hard disk, if it is abnormal or damaged, it is very likely to read for a long time or can not enter the system. The other part is the partition table (HDPT), its function is to save the partition parameters of your hard disk, the operating system is to achieve access to each drive letter on the hard disk through the partition table, if it is abnormal, it can not access the drive letter on the hard disk normally, if the problem is not serious, just a soft fault, then use the sector zeroing function in KV3000 to clear the main boot sector first, and then use diskgen to rebuild the master boot record (these software are available in the computer company's special edition CD), Repartition it again, and you can use the hard drive normally again. If the fault persists after this treatment, it means that the main boot sector of the hard disk has been physically damaged and cannot be restored, and the computer can only be booted by buying a new hard disk to install the system.

Your master-slave settings are not set up, the system sets the master disk, and the others are slave disks. According to your description, your hard drive may have bad sectors, and you can perform bad sector detection and repair.