What server?
The server computer or server is one that has been specifically designed to run certain applications. Thus, the operating system on a normal server and used computers. The types of applications that run on a server for the role it plays and how much traffic they support.
These applications are designed to operate without errors, even when the computer is designed for long unattendedPeriods. Typical features of a computer server, high reliability, the ability to function without power, increasing the main memory and a faster processor, more memory and storage capacity, etc.
Some of these servers are designed to perform specific functions. These devices are known as servers and routers, gateways, switches, etc.
The server components can cause mechanical damage, in general, a lot of strength. They may be fansand hard drives. The server is often the lack of GUI (Graphical User Interface) or a screen or monitor. In order not to deal with the control processor I / O and processor speed is not so much.
If the server becomes greater, then used as the acceleration of a processor, multiple processors. These can be run in parallel with the various support measures. Typically, the servers working in rooms that seemconditioned to ensure that does not heat up.
server operating systems are different and come mostly from the UNIX operating system. The different types of servers, according to their functions, application server, mail server, proxy server, game server, fax server, etc.
What is RAID?
RAID stands for Redundant Array of Independent Disks. They are often used instead of hard drives for servers. The main objectivein the case of RAID is to transfer data quickly and keep copies of the same data remains available even if a hard drive no longer works.
When data is stored in a RAID are given below:
Creation of reflection: the copies of the data is stored on multiple hard drives.
· The striping: the file that the different parts that are stored in common and have different circumstancesHard disk.
• Error correction: A review of available data and verify that it is free and error when errors are detected, to correct.
Normally hard drives in RAID-5 levels, each of which performs a different function are provided. Besides that other configurations are also available for nesting and hard disks is also an option.
How could I RAID data loss?
The loss of data due to RAIDthe following reasons:
Even if RAID devices are generally supported by UPS, power failures occur in them a few times. Lead to data loss, it is important that if some data are transferred at this time.
"RAID can suffer physical damage to the loss of all records and data loss in a present.
· It can be a human error in data lossRAID.
• Another reason for data loss is bad sectors. If these data are written to be read, then the same areas. This type of error can be corrected with operating systems. Even if you eliminate these errors, patches the damaged area and no more memory is used for the data.
So when you lose the RAID device data for the entire system is denied access or some of the data is in ais not available.
RAID Data Recovery
Data recovery is possible in most cases RAID. Although the aircraft was damaged beyond repair, the data can be recovered and then progressively combined to produce the entire file.
logical error, data corruption may lead to an end, be corrected with the use of software. This software is available online, however,ensure that the data is restored, it is best to hire a team of RAID data recovery company, which manages.
Loss of data, remember that you carefully select the data recovery company, because in large part determine whether the loss of data is restored. All the best!
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