在linux下册硬盘速度,linux下提高硬盘读写速度（Linux to improve the speed of reading and writing hard disk）.doc...

linux下提高硬盘读写速度(Linux to improve the speed of reading and writing hard disk)

linux下提高硬盘读写速度(Linux to improve the speed of reading and writing hard disk)

Linux to improve the speed of reading and writing hard disk

Brief introduction:

Many friends now use large capacity DMA or UDMA-33 Tags

Quasi hard disk. In Microsoft's Windows98, in order to increase the number of DMA or UDMA-33 standard hard drives

According to the transmission rate, you can open the DMA of the IDE hard disk in the computer's CMOS or operating system (direct storage)

Storage access) this function. However, in the Linux platform, Linux does not automatically open the DMA mode,

So in Linux, the UDMA-33 standard hard disk sense data transmission using these IDE interfaces is far from complete

Fast in Windows. In fact, Linux platforms can also be used to open DMA mode through software, as follows

Linux is the next drive to speed up the specific practices.

First, before Linux opens the DMA mode, the most important thing is to back up the number on the hard disk

According to the. Because after opening DMA mode, no one can predict whether the hard disk can work properly, the data is

No, not yet. Backup all the important data under Linux to other storage media such as hard disk or CD-R

Is the best choice, please do not backup data on the same hard disk, but also can not backup the data to the same

Hard disk partition.

The second step is to modify some of the device node parameters in the hdparm directory. However, it is necessary to modify these parameters

You have to login to the Linux system as a super user (ROOT). Ordinary Linux users do not have this right

Limit changes to the contents of the hdparm directory. Here is an example of how to modify the node parameters of hard disk devices

Yes, different models, different volumes of hard drives may list parameters that are not the same, but the process of modification and

The method is roughly the same.

Linux command: hdparm

Function Description: display and set the parameters of the hard disk.

Syntax: hdparm [-CfghiIqtTvyYZ][-a <