g hard drive

hard Disk Interface The current hard disk interface type is not much, mainly IDE, SCSI, SATA three kinds. Many times the IDE replaces the Ultra ATA, many people are accustomed to the Ultra ATA hard disk is called IDE hard disk, but need to explain that the concept of the IDE is greater than ata--in principle all

the entire image process, only half of the disk capacity is valid (the other half is used to store the same data ). Compared with raid 0, raid 1 First considers security, halving the capacity, and changing the speed.Raid 0 1To achieve high speed and security, raid 10 (or raid 0 1) can be simply split into a raid 0 array consisting of multiple disks for mirroring.Raid 3 and raid 5Both raid 3 and raid 5 are verified. Raid 3 uses a disk to store verification data. The corresponding data verificati

In today's computer system, the performance of the hard drive has become the biggest bottleneck affecting the performance of the machine. In the WINDOWS7 system with high requirements for accessories, the hard disk naturally becomes the object that needs to be optimized, and by turning on the AHCI mode of the hard

case, very slow !!! Initrd/initrd. img Boot 2011-11-24 note: If your grub is grub2, the above four commands are unavailable and you need to use grub2-related commands, (In grub2, the number of the disk partition starts from 1, with/dev/sad1,/dev/sda2 ,... and so on, because of our vmlinuz, initrd. IMG and so on are stored in/dev/sda3, so msdos3 is used to specify the partition in grub2) Linux (hd0, msdos3)/vmlinuz Linux askmethod Initrd (hd0, msdos3)/initrd. img Boot After the installation s

The first step opens the Run dialog box and enters the command "regedit" to open the Registry program in turn, the second step opens "HKEY_CURRENT_USER" → "Software" → "Microsoft" → "Windows" → "CurrentVersion" → "Policies" → " Explorer, right click on the right to select "new" → "Binary value", the command is "NoDrives", its value is "0", and finally click "OK" button. The third step to restart the computer, you can solve the problem. When you insert a removable

Like old SCSI and SATA technologies, SAS supports hot-swappable disks, which is important for environments that maintain high availability requirements. And SAS is a complete two-way system, while SATA inherits the IDE's characteristics and is a system of half-two-way communication. Therefore, the SAS system throughput can be similar to the SATA system twice times. And few SATA drives can reach 7200RPMs, and many vendors are or are planning to provide 10000RPM and 15000 RPMs disks, which also me

Advantage 1. Start fast, no motor acceleration rotation process. Advantage 2. Without the head, fast Random read, the reading delay is very small. According to the relevant test: two computers in the same configuration of the computer, the laptop with solid state drive from the boot to the desktop has taken a total of only 18 seconds, and the laptop with the traditional hard

Have you already mastered the installation process of the components described in the previous installments? Oh, very soon! This issue will also introduce you to the hard drive, the optical drive, as well as the floppy drive installed. If you do not understand the installation process, or have any questions, do not for

#DDBDdb.deletable = "true"Ddb.geometry.biosHeads = "255"Ddb.geometry.biosSectors = "63"Ddb.geometry.biosCylinders = "16580"Ddb.adaptertype = "Lsilogic"Ddb.geometry.sectors = "63"Ddb.geometry.heads = "16"Ddb.geometry.cylinders = "16383"Ddb.uuid = "C2 9a FA 2b a6-74 4e C7 4d 1a 6d 68"Ddb.longcontentid = "52221f36e0f992d5465a8a6b993dc925"Ddb.virtualhwversion = "7"Ddb.toolsversion = "8290"====================end of the VMDK file==========================(4) Open vsphere Client, select virtual Machin

First, of course we can use umount to uninstall it.You can use the mount command again to reload; However, if "pop-up"/"eject" is selected, it cannot be reloaded. This is generally applicable to optical drives; "Safely remove the driver"/"safely remove device", stop rotating the USB flash drive/mobile hard drive and uninstall it automatically; Differen

After loading Ubuntu in VirtualBox, I found that the hard disk space is too small to increase the capacity of the hard disk. That is to build another hard drive: 1. Add a new hard drive Settings, Storage, SATA controller, right-cl

The biggest difference between solid-state drives is storage media. It's kind of like the physics of Junior high school. The propagation of sound in different media is not the same, and the speed of propagation in solids is higher than that in gas.Hard disk is also a reason AH, solid-state hard disk storage medium is flash chip, mechanical hard disk storage medium is magnetic disc. The reading speed is nat

　　What is a mixed hard drive: Many friends of computer enthusiasts regard a hybrid hard drive as a solid state drive mixed with a common mechanical hard drive. In fact, mixed

SSD solid-state hard drive How to optimize the use of solid-state hard drives more slowly how to do? Today, this article mainly with the introduction of SSD solid State hard drive optimization of some knowledge, mainly for some netizens often said they buy the solid-state

Someone asked how to make the downloaded Mac OS X operating system into an installation disk based on a USB flash drive or a removable hard disk and install an Apple Computer operating system with a USB drive or removable hard drive. OK, send a tutorial on using a mobile

1. Hard drive Daily maintenance hard disk in the use of the process should pay attention to the following aspects: Computer work is strictly forbidden to move or collision machine, otherwise it may make the hard disk head and disc collision, causing the hard disk head and d

USB flash drive, mobile hard drive boot boot install linux system "Centos 6.4"USB flash drive, mobile hard drive boot to install Linux system "Centos 6.4" (Rhel basically the same)The case is that I installed 32 system, 64-bit whe

Failure phenomenon: Computer power-on for self-test, the "CDD Controller failure" error message, press F1 key, sometimes from a drive to boot, but do not recognize C drive, sometimes not from a drive boot. 52 Hardware analysis Processing: From the system prompts error message, it is hard

Dual hard drive and dual system, optical drive disk upgrade win10 considerations Dual-hard drive and dual-system, optical drive disk upgradeWin10Notes Of course, the two hard

partitions sda1 and sda2, in the abstraction for Vfsmount complete like file system directory mount, assuming sda1 is mounted to the "/" root directory, Sda2 is mounted to the "/test" directory, so for example I Test/file1 Read and write operations will naturally be written to the second primary partition of the disk, the process of refinement is: first, from the directory of file1 files up, and then see whether the directory node is the file system mount point (see Super_block structure), here