raid expander

Basic Linux RAID operations RAID stands for "A Case for Redundant Arrays of Inexpensive Disks (RAID)", known as A "cheap Redundant disk array", which was published by UC Berkeley in 1987. The main idea of RAID is to make several small physical disks into a large-capacity virtual storage device to improve the Read and W

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 can provide data redundancy, but the performance of the disk subsystem will be reduced, some of the reduction is still relatively large, up to 30%.The hardware array is implem

Overview raid is the abbreviation of "Redundant Array of independent disk ".Independent redundant disk array. The redundant disk array technology was born in 1987 and was proposed by the University of California at Berkeley.　　Raid disk array (Redundant Array of Independent Disks)A simple explanation is to combine n hard disks with RAID Controller (hardware, softw

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,

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 raid became an "independent redundant disk array". Howeve

ArticleDirectory Question 1: What is raid? What is it composed? Question 2: When do I need raid? If you have time, blow more water. RAID technology can be used to blow a few barrels of water. You will be able to understand this! Use a water dispenser to teach you what raid is Question 1: What is

Detailed RAID Disk utilization one. RAID definitionRAID (Redundant array of independent disks independent redundant disk array) technology is the University of California, Berkeley, 1987, originally to combine small low-cost disk to replace large expensive disk, At the same time you want to disable the disk will not make access to data loss and develop a level of data protection technology.

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 array through a large number of cheap hard disks. However, the development of

A RAID definitionRAID (Redundant array of independent disk independent Redundant array) technology was proposed by the University of California, Berkeley, in 1987, initially to combine small, inexpensive disks in place of large expensive disks, while hoping that the disk will fail without damaging access to the data Development of a certain level of data protection technology. RAID is a redundant array of i

A RAID definitionRAID (Redundant array of independent disk independent Redundant array) technology was proposed by the University of California, Berkeley, in 1987, initially to combine small, inexpensive disks in place of large expensive disks, while hoping that the disk will fail without damaging access to the data Development of a certain level of data protection technology. RAID is a redundant array of i

DescriptionThis summary comes from a personal technical documentation summary, codenamed 101. First, RAID introduction1.Raid Basic situationRaid: Disk array• Combine multiple physical disks in different ways to form a disk, logically a disk, which is RAID technology;· RAID can provide larger capacity and higher p

RAID disk arrayRAID is an abbreviation for the English Redundant array of independent disks, which is known as a standalone redundant disk array. Simply put, RAID is a combination of multiple separate hard disks (physical hard disks) in different ways to form a hard disk group (logical hard disk), providing higher storage performance than a single hard drive and providing data backup technology. different

Transferred from: http://www.linuxidc.com/Linux/2015-08/122191.htmRAID means a redundant array of inexpensive disks (redundant array of inexpensive Disks), but now it is known as a redundant array of independent disks (redundant array of independent Drives). Earlier a very small disk was very expensive, but now we can buy a larger disk cheaply. Raid is a collection of disks that are put together to become a logical volume.Understanding

data storage requirements, it is unthinkable. Because of this, a new technology--raid was born.Redundant array of independent hard disks (RAID, redundant array of independent Disks), formerly redundant Array of inexpensive disks (redundant array of inexpensive Disks), referred to as hard disk array.The basic idea is to combine a number of relatively inexpensive hard drives into a hard disk array to achieve

The disk array is made up of many inexpensive disks, combined into a large disk group, which uses individual disks to provide data with the added effect to improve the performance of the entire disk system. Using this technology, the data is cut into many sections, stored on each hard drive, even if there is a piece of damage, no data loss, and can continue to use. Introduction to RAID (disk array): What is

Continuous OPEN-E DSS V7 Application Series three introduction to Web managementFirst, RAID technology introductionRAID (Redundant array of independent Disks): Independent redundant disk array, abbreviated to disk array. RAID is a storage device that is organized in a certain form and scheme. It is better than a single storage device in speed, stability and storage capacity, and has a certain degree of data

Article Title: General thread-software RAID in the new Linux2.4 kernel, Part 2. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. By Daniel Robbins 　　 Install RAID-1 in the production environment 　　 The new 2.4 kernel has finally been released. now we should find an idle P

Classification: A RAID definitionRAID (Redundant array of independent disks independent redundant disk array) technology is the University of California, Berkeley, 1987, was originally designed to combine small low-cost disk to replace the large expensive disk, while the disk failed to make access to the data will not be compromised A certain level of data protection technology has been developed. RAID is

Intel S5000VSA (SAS) motherboard setup RAID stepsI recently personally installed a server, with the Intel S5000VSA 4DIMM motherboard, because in the installation process did not notice some details, so in the installation encountered some problems, and then after everyone's research and discussion, finally successfully solved these problems, in order to accumulate experience, Also in order to allow other colleagues to avoid the network, save time, spe

Original: http://blog.chinaunix.net/uid-639516-id-2692517.htmlClassification:A RAID definitionRAID (Redundant array of independent disk independent Redundant array) technology was proposed by the University of California, Berkeley, in 1987, initially to combine small, inexpensive disks in place of large expensive disks, while hoping that the disk will fail without damaging access to the data Development of a certain level of data protection technology