Analysis of the advantages and disadvantages of RAID class Server from data recovery perspective

RAID server data Recovery Most failures are the loss of RAID array information, which causes the RAID server not to start and use, often requires the data recovery company to do RAID reorganization to function properly, from the data recovery point of view, the RAID server has its own advantages and disadvantages.

Advantages:

The main advantage of RAID (independent redundant disk array) is that it helps to improve system performance and reliability. The use of RAID disk arrays in servers is a compelling example. Mirroring is a complete copy of the data. In other words, mirroring is 100% redundant. Copying to a backup file is a must.

Mirroring and decentralized connections (Striping)-the performance of a RAID server can be improved when the disk is distributed. The level 0+1 of a RAID magnetic consolidation column requires at least 4 disk drives. These are usually done by grouping bytes or crossing bytes. This crossover is done in multiple drives. The data can be read and written synchronously, generating RAID1 fragments to obtain high-speed input/output rates.

A RAID disk array can be used to check the likelihood of collisions with any server system through parity (Parity) checks. The concept of parity (Parity) is derived from the application and concept of mirroring. The data from the collision system matches the data stored on the other disks and is called the Parity (Parity). Parity is used to calculate data from two disks, and then the results are stored on a third disk. Preference devices can be named RAID 3 (using dedicated parity for decentralized connections) or RAID5 (distributed parity is used for decentralized connections).

Disadvantages:

The main disadvantage of a RAID disk array is that the disks used for the network operating system must be written. The most important use of a RAID disk array is that its original design and wide range of applications are on the server. So when the raid server is attracting people's attention, it will naturally be associated with the network. Therefore, when designing the system, the device driver should also be included. This design is a very complex process in terms of raid.

Administrators will find it difficult to configure RAID disk array server systems. In other words, the ability to dynamically zoom in on a RAID server is complex, especially for administrators who are managers of IS and LAN administrators.

Another major disadvantage is that the system should support RAID disk arrays. This is true for most raid hard drives, including different types of disks. Therefore, if the server system uses different types of RAID disk arrays, it cannot be supported by the system, and the availability problem is followed.

The initial user must decide which type of RAID disk driver is compatible. Different systems support different types of RAID hard drives. DGR technology enables administrators of any network system to reconfigure the storage Dimensions RAID system.

RAID server due to its unique reliability is generally not a problem, but in reality often due to various reasons for the RAID server data loss needs to do data recovery, therefore, in peacetime use of the process, must be well maintained, timely detection of problems, timely solution. Of course, if the RAID server fails to cause data loss, it is recommended to find such as the Shanghai Shield Data Recovery Center, a professional and formal data recovery company to do data recovery, to ensure the security of data.

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Analysis of the advantages and disadvantages of RAID class Server from data recovery perspective