Often someone communications raid, but it does not know its so dye, today I will be an example of Internet cafes to explain.With the expansion of Internet cafes, internet cafes will increase the number of computers, Internet users also increased, the speed of data access to the server will become a new bottleneck, many customers began to complain about the server on-demand film comparison card, game upgrade slow and other issues, if not to take releva
We know that the capacity of a single disk storage data is limited, in order to increase the capacity of the disk, we can combine a number of smaller disks together to form a larger disk device, which is a raid (stand-alone disk array), RAID can not only improve the storage capacity of data, but also improve the data protection function, Different levels of
, and starts synchronizing the disk.
Old version
1 Restart the host press ctrl-c into the configuration menu, the cursor on the 2 Select DEVICE PROPERTIES to find hard drive, press 3) Select Mirroring PROPERTIES Press 4 Select the first hard drive, the third column mirror pair item, and set it to primary by the-/+ number.
5 Select the second hard drive, the third column Mirror pair, and press the-/+ number to set it to seconde
6 Press ESC, select "SAVE change THEN EXIT This menu", press 7 Press
=" wkiom1g_5zvw4z42aabscziry1g694.png "/> Haha, see! It's been changed, Oh!Come on, delete the failed disk command as follows:650) this.width=650; "src=" Http://s4.51cto.com/wyfs02/M01/8A/F9/wKiom1g_55PBNu82AABdwBKmNaw974.png "title=" Qq20161201170434.png "alt=" Wkiom1g_55pbnu82aabdwbkmnaw974.png "/>OK, Next I'll teach you how to stop the array:Note, don't forget to build the configuration file.650) this.width=650; "src=" Http://s1.51cto.com/wyfs02/M00/8A/F9/wKiom1g_6L_yIaYAAABGbaa-r0c363.png "t
1.RAID Description
RAID is an abbreviation for the English Redundant Array of Inexpensive disks, abbreviated as a redundant array of inexpensive disks.
Simply put, RAID is a combination of multiple separate hard disks (physical hard disks) in different ways to form a hard di
In the early days of computer development, the price of "large capacity" hard disk is still quite high, the main way to solve the problem of data storage security is to use devices such as tape drive to backup, although it can guarantee the security of data, the work of lookup and backup is quite tedious. In 1987, three engineers, Patterson, Gibson and Katz, published a paper entitled "A case of redundant array of inexpensive disks (redundant
, the system platform for the Linux platform, ext3 file system. Raid in 1th and 4th, two hard disks reported yellow lights, management personnel after the check on the 4th plate has been forced on-line operation, forced on-line found that most of the directory can not open, there are some directories in the directory in which file loss occurs.1. First analysis of the original RAID structure, the force on-li
Introduction
RAID, English is all called: Redundant Arrays of independent Disks, Chinese translation: Independent fault-tolerant disk array, formerly known as a fault-tolerant low-cost disk array, is now generally referred to as a disk array. The thing is presented by UC Berkeley, which can be used to integrate multip
The full name of the disk array is: Redundant Arrays of Inexpensive Disks, raid, which roughly means a cheap redundant disk array. Raid can use a technology (software or hardware) to integrate multiple smaller disks into a larger disk device. This larger disk not only expands the storage space, data protection is also
Redundant Arrays of Independent Disks (RAID) indicates a disk array with low cost and redundancy capabilities. The principle is to use arrays as disk groups, and use them in combination with the Design of Distributed Data arrangement to improve data security. A disk array is a combination of many Inexpensive Disks into a disk group with a large capacity. The addi
RAID technology mainly includes RAID 0 ~ Raid 50 and other specifications have different focuses. common specifications include:
RAID 0: RAID 0 continuously splits data by bit or byte and reads/writes data on multiple disks in parallel. Therefore,
Application of RAID disk array
RAID, which is generally translated as a Disk array and its full name is Redundant Arrays of Inexpensive Disk. It was initially conceived as a project by a research team at the University of California, Berkeley, they hope to build a cheap and highly available disk
disk array-the integration of multiple disks into a larger disk through a certain technology, not only increased capacity, but also the data on the disk has the function of maintenance, recovery, read faster.
RAID has different common levels, so that the consolidated disk has different functions:====================================================================================================
There are two ways that a disk array can be implemented, that is, "software arrays" and "hardware arrays."A software array is the Disk management function provided by the network operating system itself to configure multiple hard disks on a connected common SCSI card into a logical disk to form an array. The software array
Today's operating systems, whether Windows or Linux have RAID capabilities, RAID is divided into hardware RAID and software RAID, hardware RAID is through the RAID card, software RAID i
RAID overview RAID is short for RedundantArrayofInexpensiveDisk. with this technology, multiple disks can be integrated into one array and can be used as a single disk. The RAID disk array can be used to improve data read/write efficiency and data redundancy (backup) based o
1.1 raid was proposed by Professor D. A. Patterson of the University of California at Berkeley in 1988. Raid is the abbreviation of redundent array of Inexpensive Disks. It is also called "disk array ". Later, the letter I in raid was changed to independent, and
Disk array (RAID) instances
RAID Technology classification
Soft RAID Technology
Hard RAID Technology
The difference between RAID and LVM
Why choose to use r
Recently, the server encountered a small problem. I had to redo raid. I found an article on the Internet. I felt very careful. I 'd like to share it with you. Record the record when the server is reinstalled and share it with you.
Hardware RAID 5:
Recently, I personally assembled a 1u rack-mounted storage server with an 8-hard drive using a dual-core P4 820d processor. During the assembly process, I create
1. What is RAID?RAID is a fault-tolerant, inexpensive disk array that consolidates multiple small disks into a larger disk device that not only expands the capacity of the disk, but also enables data protection.2.RAID RatingRAID depending on the level of the implementation of the function and performance is also differ
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