Tags: LVM Disk ManagementNote: The operation of any disk may damage the data inside, please back up the data in advance, remember! Remember! Remember!0x00: Preface.In the Linux use process, found a file is very large, such as 5G, but there are two physical disk one Left 4 G, one left 3G, disk space is not enough, so ce
MBR partition table
The traditional partitioning scheme, called the MBR partitioning scheme, is to save the partition information to 64 bytes in the first sector of the disk (the MBR sector). Each partition entry occupies 16 bytes, which contains the activity status flag, the file system identity, the start and end cylinder number, the number of magnets, the sector area code, and the hidden sector numbers ( 4 bytes), the number of total partition sec
Use fdisk to add hard disk partitions and fdisk to add Hard Disk Partitions
1. use fdisk to create 6 partitions [1 P + 1E (5L)] // dev/sdb1/dev/sdb5/dev/sdb6/dev/sdb7/dev/sdb8/deb/sdb9
1 [root@server ~]# fdisk -l 2 3 Disk /dev/sda: 8589 MB, 8589934592 bytes 4 255 heads, 63 sectors/track, 1044 cylinders 5 Units = cylinders of 16065 * 512 = 8225280 bytes 6 Sector
For details about the/dev/null and/dev/zero files, and solutions for accidental deletion of/dev/null and/dev/zero, and the disk I/O Testing Method Using/dev/zero, disk deletion and recovery by mistake1. Introduction-explanation from Wikipedia/dev/null:
In Unix-like systems,/dev/null, or an empty device, is a special device file that discards all data written into it (but reports a successful write operation
System files generally have two formats: ISO format and GHO format. ISO format is divided into original system and ghost packaging system two kinds. As long as the decompression software winrar decompression has more than 600M (WIN7 general 2G) above the Gho file, is the Ghost packaging system, PE in the old Peaches Smart installed PE version software can directly support restore installation. If decompression after no more than 600M Gho file is the original ISO format system, to install the ori
How to install the system U disk Startup Disk
Download the system image file to install, to your U disk boot disk, and then in the computer you want to install the system to set the first boot to the U disk startup, remember the boot mode to the U
In our Internet cafes, we often need to hide some disk partitions. The common method is to use the partition magician, registry, and other methods to hide, but these methods are easy to crack, more importantly, it hides the entire partition, which lacks flexibility. Once the required hidden space increases and needs to be adjusted, it will become very troublesome and time-consuming. Now I will introduce a software that can solve this problem. With it,
The filex file system is in the fog. Let's summarize some basic knowledge about fat first.
Hard Disk StructureA hard disk consists of multiple disks, each of which has a read/write head. If n disks exist. There are 2n faces, corresponding to 2N head (heads), starting from 0, 1, 2. The radius of each disc is the concentric circle of the fixed value R and then logically forms a cylinders with the motor Spindl
There are many ways to install Ubuntu on a USB flash drive, and the PC is required to support USB boot.
I tried the method on the official website. I started the installation with a 1G U disk (Aigo MP3 USB2.0) and installed the system on a 16G U disk (aData usb3.0. It can be called a dual USB flash drive, or O (portable _ portable) O ~
After installing Ubuntu's 16 GB system USB flash drive, you can not only
Git, this goods can be called artifact, use it will no longer want to use other VCs, like on the high-speed do not want to go the same road.
The power of Git is that you can create warehouses in any shared path within your LAN without having to run any services. All operations are local based. This is not difficult to understand can be directly in the fast disk.
Generally, larger companies have their own version Management Servers, remote login VPN
Now many users are aware of the damage to the computer virus is very large, the installation of an anti-virus software is very necessary, the anti-virus software installed in Windows have a very friendly graphical interface, only need to use the mouse on two to complete antivirus, do not need too much expertise.
But the use of anti-virus software in Windows has a big disadvantage, if the file is being called infected with the virus, antivirus software on it helpless, anti-virus software will re
Mac OS X 10.10.4U disk installation disk How to make? now, many Mac user friends want to independently make OS X 10.10.4 USB disk installation disk, many people are asking, Mac OS X 10.10.4U disk installation disk How to make? Sma
At the beginning of a look, thought difficult, after all, did not operate, and then walked a lie, feeling that it is the case.
Aliyun The IO performance difference between the system disk and the data disk
The tribe searched the Internet for a aliyun of the IO performance difference between the system disk and the data
During the recent period, two of the many priorities that storage managers face seem to be mutually exclusive: disk to disk (D2D) backups seem to contradict the energy savings.
Storage experts deploy disk to disk Backup in 2008, or expand their investment in this area to improve data protection performance and secure
Before adding a hard disk to a host, you need to know the command method for the hard disk and partition under the Linux systemFirst, disk namingLinux for SCSI and SATA devices are named after the SD, the first SCSI device is SDA, the second is SDB .... And so on There are two SCSI interfaces on the motherboard, so you can install 4 SCSI devices altogether. The t
First , U disk Startup disk preparation before making
1, from the U-Wizard official website (www.u-jingling.com) Download U-Genie USB disk Start production tool
2, before running the program, please try to close anti-virus software and security software (this software involves the reading and writing of removable disk
First, prepare before preparation (note: Before operation backup good u disk data)
1. Computer memory can not be less than 512MB
2.U disk capacity is greater than 256MB
3. Download the old Peaches U disk boot disk production tool Build110828
"Old Peaches U disk Startup
Work Assignment DescriptionIn the previous project, HT company deployed Windows Server 2008 for HW, and acquired 3 8G (experimental emulated) hard drives, which required the following actionsProject requirements:1. Upgrade these 3 disks to dynamic disks.2. Create a simple volume on disk 1 with a size of 10M, formatted as NTFS, and the volume labeled E:3. After completion, expand the E volume, provided by disk
Work Assignment DescriptionIn the previous project, HT company deployed Windows Server 2008 for HW, and acquired 3 8G (experimental emulated) hard drives, which required the following actionsProject requirements:1. Upgrade these 3 disks to dynamic disks.2. Create a simple volume on disk 1 with a size of 10M, formatted as NTFS, and the volume labeled E:3. After completion, expand the E volume, provided by disk
Disk management in linux: (1) disk structure, partitions, and linux
Recently, I have compiled some knowledge about disk management and found that there are still a lot of data. I have divided it into four parts to share with you:
1. Disk structure, understanding partitions
2. Manage partitions and format the File Syste
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