What are the computer hardware maintenance skills? In short, the function of computer hardware is to input and store programs and data, and to process data into available forms. From the outward appearance, the microcomputer is composed of the host box and the external equipment. The devices in the host enclosure are connected to the host through an interface and a connecting line. Then, the computer hard
program is unable to start the hard drive
As we all know, the hard drive has a primary boot area, where the master bootstrapper is present, and if the main bootstrapper has a problem, then the system cannot be booted from the hard driv
is not too late)The following are the methods and procedures for writing the Seagate K9K10 disk after the calibration is completed:First of all:
Back to the AGE50 state. Use the R command to determine if the hard disk basic resource file module is properly loaded into memory (if you go directly back to t> to indicate normal)The judgment here is that if the error is usually the firmware area still has problems, basically need to recalibra
Factory is as the master disk, which is not required when only one hard drive is installed, but when multiple hard drives are installed, the hard drive jumper needs to be reset. The jumper on the hard disk is simpler, and the jum
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
Many friends have previously asked if the SATA hard drive can use ghost. When using ghost to back up the system, they may have encountered this situation,
After the system is started with a floppy disk or a CD, the system is black after the ghost. EXE command is used. Does ghost not support SATA devices?
Can't we back up the system after using a SATA hard disk? T
Many catchers have asked if they can use ghost for SATA hard disks. When using ghost to back up the system, they may have encountered such a situation. After starting the system with a floppy disk or a CD, when using ghost. after the EXE command, the system is black and crashes. Does ghost not support SATA devices? Can't we back up the system after using a SATA hard disk? The answer is whether the SATA
computers often do not detect the hard drive what to do
The computer often does not detect the hard drive solution one:
There are several reasons for these:
1, the hard disk itself has a problem, may be broken, with tools to detect, bad can only send repair.
2, the data
, which must be based on the hard disk conditions to set up, otherwise it is likely that there will be other problems. This kind of situation is not difficult to solve, as long as the motherboard BIOS instructions and the hard disk itself, the correct settings can be resolved.
Third failure: A primary partition fails to start the hard
The solution to the hard drive after computer boot:
Just bought the computer boot ready to the hard disk partition install the operating system, but at this time, the problem arises, the machine to start self-test after the prompt can not find the hard disk
In the beginning, I think it is the motherboard bios in the
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
A certain day of the month, is a friend to start a new SATA hard drive that day, I am alone in the computer city outside the platoon irresolute, met this gentleman, came to ask me: "Sir has for my new hard drive and the old hard drive
The removable hard drive is not detected on more than one computer and the hard drive LEDs are not lit.
The hard drive has no light on it, which means there is a problem with the mobile
Hard Disk Interface
ATA Full Name Advanced Technology attachment, is the traditional 40-pin and port data cable connection between the motherboard and the hard disk, the maximum external interface speed of 133mb/s, because the same line of interference is too poor, and line space, adverse computer cooling, will gradually be Replaced by SATA.
Ide
IDE's English
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
reset. The jumper on the hard disk is simpler, and the jumper position is between the data cable interface and the power cable interface (Figure 7).
Figure 7 Hard disk jumper
There is also a description of the jumper settings on the hard disk surface, taking the Seagate hard
formatted hard drive. The software can recover a hard disk larger than 8.4GB and supports long file names. Damaged hard drives like missing boot records, BIOS parameter blocks, partition tables, FAT tables, boot areas, and so on can be recovered by it.
Software evaluation
The software scans the
For users with a demand for performance, upgrading an existing hard drive to a fixed hard drive is the most effective method. The upgrade method is the same as upgrading the mechanical hard drive.
However, if the "solid-st
How to view the hard drive brand model and other details of CentOS
First, use the smartctl -- all/dev/sda command to check the hard disk information. This command comes with CentOS. The result may be as follows:
smartctl 5.43 2012-06-30 r3573 [x86_64-linux-2.6.32-358.el6.x86_64] (local build)
Copyright (C) 2002-12
by
Bruce Allen, http:
//smartmontools.sourceforg
A new hard drive was added today, and the newly added hard drive can be seen in the BIOS, but it is not visible in Disk Management and disk drives after entering the system. And in Device Manager other devices appear ATA Channel1, preceded by an exclamation point, as shown i
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.