1, the use of the environment
The dust will be adsorbed to the surface of the hard disk printed circuit board and the internal of the spindle motor by excessive dust in the working environment. The hard drive works in a more humid environment, reducing the insulation resistance. These two phenomena may cause the compu
failure, it will also appear above, such problems in the CMOS hard disk can recognize the hard disk, the dial is very smooth, but is not in the system, can not be normal partition and format.
6. Problems with the motherboard
Related to the motherboard is also mainly the motherboard's hard disk controller, resulting in data transmission instability, error rate
How to fix the computer hard drive?
Hard Drive failure Scan
One: Unable to find the hard drive situation
For hard drives that appear with an "HDD not detected" error, fir
of C disk, now starting from the 1 cylinder. Exit after saving BIOS settings. The hard drive is back to normal after being partitioned and formatted. There are some hard drives, self-test when prompted "HDD Controller error." Using the above method is invalid, only scrap.
Finally hint: many times seemingly complex hard
arrival--read data port 6. Hard drive Construction and working principle the internal drive structure consists of a fixed panel, a control circuit and a board, a magnetic head, a disc, a spindle, a motor, an interface and other accessories, wherein the head disc component is the core of the
are: hot-pluggable, high-speed bandwidth, remote connection, large number of connected devices. Fibre Channel is designed for the environment of a multi-disk system such as a server, which can meet the requirements of high data transmission rates for high-end workstations, servers, mass storage subnets, and peripherals through hubs, switches and point-to-point connections for two-way, serial data communication systems.
SAS interface
SAS (serial Attached SCSI), serial attached SCSI, is the nex
chassis and tighten each screw. In addition to the work process do not directly move the hard disk and mobile chassis, you need to move the computer to remember to take care of the light, to prevent hard disk collision caused damage.
2, dust
Dust on the hard disk damage is very large, it can be said that dust is the number one killer of the
In this article, I wowould like to cover a basic howto installing a second hard drive to explain and your storage needs.
It's been about a year since I purchased my new Linux system and I feel my 80 GB internal hard drive is running out of space already. so I 've decided to
disk is mainly used in middle and high-end servers, high-end workstations and storage devices.
The SCSI interface is currently used with 68-pin and 80-pin interface specifications.
The SCSI interface is a parallel transport interface.
To emphasize, SCSI this kind of hard disk basically already eliminated, use very few similar to SATA replace Pata, SCSI also must be replaced by its upgrade product SAS (serial attached SCSI).
(iii) SAS
The theoretical data for SATA2.0 and SATA3.0 hard drives are quite different, however, the actual use of the platform itself and the control of the system, as well as different applications to determine the actual use of the results, and through some network of actual test data collected to show SATA2.0 and SATA3.0 hard drive speed difference is not very clear Ex
SATA
The full name of Sata is serial Advanced Technology Attachment,Proposed by Intel, IBM, Dell, APT, maxtor, and SeagateHard Disk InterfaceSpecification.
The SATA hard drive adopts a new design structure, which features fast data transmission and space saving. It has many advantages over the IDE Hard Drive:
1.
, but Lenovo to the solid state drive, whether you can understand this problem.
Although the desktop can use a notebook hard disk, in turn, the notebook is not able to use the 3.5-inch standard desktop hard disk, because the internal space of the notebook is limited, the hard
Many friends feel that the notebook's hard disk is not enough, and do not like to use mobile hard disk, so I want to change a hard disk notebook, but do not know how to install the hard drive notebook, the following to introduce you.
1. Unplug the battery on your laptop bef
Test hard drive Bad Sectors in CentOS
Hard Disk status testing tools: smartctl, Badblocks, hdparm
You can quickly see whether the hard disk is healthy by using smartctl. The command is as follows:
[Root @ qy ~] # Yum installsmartmontools-y
Start SMART
# Smartctl -- smart = on -- offlineauto = on -- saveauto = on/dev/sd
Mobile hard drive There is a noise can't read out what to do
The main reason why a mobile hard disk cannot be recognized or opened by the computer is due to insufficient power supply on the USB interface. It is recommended that you use a standard mobile hard drive data cabl
Devices like MacBook Pro and imac have a lightning interface and a USB 3.0 interface, and both read and write data in conjunction with a dedicated high-speed mobile drive formatted with Mac OS X is very fast. So can this drive be read and written under Linux? In fact, Mac OS X is based on its own hfs+ file system format, using it to format the mobile
Today a bit of time, suddenly think of the new company, the server's hardware has a failure, and now write down to give friends a little experience to share
I remember the time when the people who were in my post were leaving, the manager took me to the computer room familiar with the environment, by the way to replace the backup tapes (backup tapes have to be replaced manually, I dizzy AH), because into the room need to access documents, I do not have documents, it needs to wait for the
Installation system can not find a hard drive solution
First of all, we find the reason from the periphery, a hard drive to work first must have a power supply, there is an IDE line with the motherboard.
Therefore, do not recognize the hard
Disk media in the storage area is the most critical device, and all data and information is stored on disk media. The reading speed of the data is determined by the connection interface of the disk media. We used to do data storage through SCSI or SATA interfaces and hard drives. But in recent years a new technology has increasingly been favored by small and medium-sized enterprises and even large enterprises. Is the SAS technology and its correspondi
Hard disk identification for Linux:
After 2.6 kernel, Linux will identify the hardware devices, under the/dev/to establish the appropriate device files. such as:
SDA represents the 1th SCSI hard drive
HDA represents the 1th IDE hard disk (that is, the master port connected to the 1th IDE interface)
The scd0 represe
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