and Ultra320 SCSI all represent a specific hard disk interface, and their speed varies considerably.
HDD Interface Classification
Ide
IDE's English is all called "Integrated Drive Electronics", namely "Electronic Integrated Drive", the common 2.5-inch IDE hard disk interface It is meant to refer to "
1.1956 years, IBM's IBM RAMAC is the prototype of a modern hard disk, it is equivalent to two refrigerator volume, but its storage capacity of only 5MB. 1973 IBM 3340 came out, it has "Winchest" this nickname, from his two 30MB storage unit, just the famous "Winchest rifle" caliber and the amount of ammunition. At this point, the basic structure of the hard disk is established.
In 2.198, two fo
There are two fault prompts for Hard Disk Self-check by microcomputer: "HDD Not Detected (Hard Disk Not Detected)" and "HDD Control Error (Hard Disk Control Error) ". The following describes how to fix the vulnerability.
First, wash your hands with water to clean the oil and sweat on your hands. At the same time, remove potential static electricity from your bod
A recent X3650 old server for testing broke a hard drive, the hard drive is on the RAID1 group, the hard drive model is SAS 15K 73GB. Because it is an old machine, replace the bad hard
Solid State Hard drive how to 4k alignment (text)
The solid-state hard disk 4k means that the solid state hard disk 4K alignment, in general, if the SSD 4K is not aligned, the hard drive read speed is very large, SSD
First of all, we need to understand how to call the "hard drive", because in the current Windows system environment, not only users in the use of the application software has read and write instructions to send the hard disk load, but may be in any idle situation, Defender, SuperFetch and other services will work in the background and cause the load, so when the
Common Fault One: the system does not recognize the hard drive
The system can not boot from the hard drive, boot from a disk can not enter the C disk, the use of the CMOS automatic monitoring function can not find the hard drive.
What to do if your laptop can't find a removable hard drive:
System-related Setup problems
Do not assume that as long as the motherboard has a USB connector can use the mobile hard drive, but also to see if the system support. Windows2000, Windows XP and the above version of the system can directly support the mobile
Method one, conventional way
Using a template may cause the virtual machine to have insufficient hard disk capacity and can be stored as data by adding a single hard disk.1. First use the DD command to create an image file size 10G under the default path:
DD bs=1m count=10240 If=/dev/zero of=/var/lib/libvirt/images/guest1_data.img
You can also use the QEMU-IMG command to create a specific reference: Cent
What to do when the computer starts to read the hard drive
Computer boot does not read the hard drive solution one:
1 Hard drive data cable or power cord interface loose.
2 The hard
. If the program is damaged, it cannot be booted from the hard disk, but the hard disk can be read and written after being started from the soft drive or optical drive. The solution to this fault is relatively simple. It is most convenient to use the FDISK of the higher DOS version. When the FDISK with parameters/mbr i
of the active partition. If the program is damaged, it cannot be booted from the hard disk, but the hard disk can be read and written after being started from the soft drive or optical drive. The solution to this fault is relatively simple. It is most convenient to use the FDISK of the higher DOS version. When the FDI
As a storage device of the hard disk, the probability of failure is not large, the normal use of the hard disk, if not affected by external forces, generally will not be a problem, and we saw some such as hard disk circuit board burned hardware failure, but also because of the user's very operation caused. But in the maintenance work of the computer,
What to do if a mobile hard drive can't be identified by computer
Solutions for mobile hard drives that cannot be identified by the computer:
Method One: System-related Setup problems
1, do not think that as long as the motherboard has a USB interface can use the mobile hard disk, but also depends on whether the sys
1.BIOS self-test After the completion of the IDE, the speed is very slow, almost 20 seconds (hook up two hard drives, BIOS configuration of the IDE automatic monitoring).
2.IDE after monitoring, clear screen, the next step is the Windows splash screen, here again for almost 20 seconds.
In this way, it takes nearly 3 minutes for the system to boot up. I wonder, the configuration is not low Ah, P4 2.4GHz CPU, 512MB DDR memory ... Because there are one
What to do if the BIOS does not recognize the hard drive:
In the first case, the most likely data cable is not plugged in or there is a problem with the data cable. Or the power supply problem, the hard drive is supplied directly from the power supply interface to obtain power.
The white is the traditiona
1, keep the computer working environment clean
Hard disk with Ultra fine filter paper of the breathing hole with the outside world, it can be used in the ordinary no purification device indoor environment, if the dust in a serious environment, will be adsorbed to the PCBA surface, spindle motor internal and plug the breathing filter, it must be dust-proof.
There is also a humid environment, voltage instability can lead to
What to do if the computer doesn't recognize the hard drive:
First check the hard drive master and subordinate line settings are set wrong, the master-slave line set incorrectly will cause the system can not be correctly identified.
Test if the system can boot from the optical
Many times we overlook the problem of hard disk life, in fact, compared to the hard disk is the most vulnerable, and most of the damage is catastrophic, not only the hard drive is broken, but also lost data, this article is mainly about the failure of the hard disk damage an
method One: Format SSD for 4K alignment
1, Win7, WIN8, or WIN10 built-in Disk management tools already have solid-state hard drive 4K alignment, as long as the SSD hard drive connected to a WIN7/8/10 computer, and then on the desktop "computer (this computer)" Click the right mouse button, in the pop-up menu, click "M
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