best raid for backup

standards. In addition to the above standards (such as table 1), we can combine multiple raid specifications like RAID 0 + 1 to build the required raid array, such as RAID 5 + 3 (RAID 53) it is a widely used array. Generally, you can flexibly configure disk arrays to obtain

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

. In addition to the above standards (such as table 1), we can combine multiple raid specifications like RAID 0 + 1 to build the required raid array, such as RAID 5 + 3 (RAID 53) it is a widely used array. Generally, you can flexibly configure disk arrays to obtain a more su

Enterprise-levelDatabaseMost applications are deployed inRAIDThe disk array server can improve the disk access performance and implement fault tolerance/disaster tolerance.RAID (redundant disk array) is simply an array made of cheap hard disks. The objective is to expand storage capacity, improve read/write performance, and achieve data redundancy (backup and disaster tolerance ). It is like a foreigner who used to take N old PCs to form a powerful "s

in Figure 2: When reading the data, the system first reads the data from the source disk of the RAID1, if the data is successful, the system does not pipe the data on the backup disk, and if the source disk data fails, the system automatically reads the data on the backup disk without disrupting the user's work task. Of course, we should promptly replace the damaged hard disk and use the

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

source disk, if the reading data is successful, the system does not take care of the backup disk data, if the reading of the source disk data fails, the system automatically read the data on the backup disk, will not cause the user's work task interruption. Of course, we should replace the damaged hard drive in time and re-establish the mirror with the backup da

source disk, if the reading data is successful, the system does not take care of the backup disk data, if the reading of the source disk data fails, the system automatically read the data on the backup disk, will not cause the user's work task interruption. Of course, we should replace the damaged hard drive in time and re-establish the mirror with the backup da

. How RAID 1 works: Figure 2 As shown in Figure 2: When reading the data, the system first reads the data from the source disk of the RAID1, if the data is successful, the system does not pipe the data on the backup disk, and if the source disk data fails, the system automatically reads the data on the backup disk without disrupting the user's work task. Of cour

Early due to raid is often used to combine some inexpensive SATA interface hard disk devices to complete redundancy.So the early full name is: redundantarray of independent Disks (independent redundant disk array). The primary function of RAID is to combine multiple hard disks on the motherboard in a specific way, organized into a logical whole with specific characteristics, and then output to the operatin

22: When reading the data, the system first reads the data from the RAID1 source disk, if the reading data is successful, the system does not take care of the backup disk data, if the reading of the source disk data fails, the system automatically read the data on the backup disk, will not cause the user's work task interruption. Of course, we should replace the damaged hard drive in time and re-establish

prevent data loss due to unexpected disk damage to the maximum extent. RAID 0 aims to speed up disk reading and does not provide any data backup and protection functions. We can select different raid applications based on the actual situation. Of course, it is very convenient for those who need to store a large amount of data on the hard disk to use

Raid OverviewThe disk subsystem with embedded microprocessor is usually called the r a I D system. The total available capacity of the r a I D array is smaller than the total capacity of the member disk.I. RAID 0 (Block) is a simple disk block without verification. In essence, it is not a real r a I d, because it does not provide any form of redundancy. If the disk with

. When we are in a situation dependent on RAID, we do not want to have a wrong understanding of its role. First, we need to clarify some common mistakes in RAID 1, 4, and 5. 　　 Many people believe that if all important data is stored on a RAID 1/4/5 volume, there is no need to regularly back up the data. This is completely wrong-the reasons are as follows.

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

Server: differences between hard RAID and soft RAIDWhat is RAID?　　RAID is short for the English Redundant Array of Independent Disks. It is translated into Chinese as an Independent disk Redundant Array or a disk Array for short. To put it simply, RAID combines multiple independent hard disks (physical hard disks) in d

In recent years, customers have always asked original storage engineers about the storage RAID plan (RAID, 5, 6 ....): "How many RAID are used? What RAID level is used? Why is RAID at this level used? What are the benefits of this level? Wait, "the storage engineer may be ti

system is RAID 1, and the database data files are stored on the disk drive of RAID 5. 1.5 sometimes we look at the configuration sheets of some famous-name servers and find that the CPU is not very fast, the memory is not very large, and the graphics card is not the best, but the price is definitely high. Is the server system a lucrative product? Of course not. The configuration of the server is differen

hard disk (physical) is damaged, the mirrored hard disk replaces the primary hard drive's work. The data security of RAID 1 is the best and most reliable for all raid levels because of a mirrored hard disk for data backup. RAID 1 supports hot-swappable, if a hard drive is broken, you can unplug it directly, and then h

As we all know, CPU chip and graphics subsystem performance is soaring, but the corresponding disk subsystem performance is becoming more and more serious performance of the overall system bottlenecks. While disk technology is ata/100 today DMA66 tomorrow, none of these specifications can fundamentally improve the capabilities of the disk subsystem. It's only raid (here we refer specifically to IDE RAID tec