Saturday, 7 December 2013

An Analysis Of Data Recovery

By Angela Briggs


Different pieces of information may be lost when a computer system fails. The system fails as a result of a number of attacks. The attacks may occur when a system get infected by various malicious programs. This corrupts the disk storage applications leading to loss of information in such locations. Data recovery activities are aimed at salvaging the information in the corrupted disk segments. A number of approaches may be used in such a case.

There are software and hardware components within computer systems. The elements are interlinked by a number of communication channels such that information can smoothly flow form one segment to another. The hardware component consists of all the tangible elements within a computer system. These elements are run by the software applications installed. The applications issue special commands during the processing operations.

The operating system is the core program within the computer system. It is the main program that controls the running of other applications. It forms the basis on which other applications are run. The interface provided buy this program ensures that there is a smooth flow of data from one point to another. The coordination of various elements is done through the management of resources in the system. Memory allocation is very critical in various operations. This is also done by the program.

Conflicting instruction may be sometimes issued. This happens when the same memory segment is allocated to a number of computer elements. This result in freezing of applications may cause a failure in the storage locations if it is severe. Malicious applications may also launch an attack on the main memory. This corrupts the memory. A series of harmful instruction may be given to storage locations such that a failure may also occur. This ends up corrupting the information stored here.

The program installation is done is a systematic way such that the files are sequentially run. Critical files especially those relating to the operating system are installed first. The rest of the program files are then installed and executed afterwards. A number of disks are often used. The disks ensure that the main instructions are stored in one location. There is separate disk used for back up purposes. This is secured in a different location.

Fragmentation of the primary and secondary storage location is very critical in information management. The fragmentation partitions the disks into a number of independent segments. Each is accessed in a different way. Management is eased through disk fragmentation. This also ensures that in an event that one of the segment collapses, the other one is not affected. The flow of information is therefore not affected.

The level of attacks by the malicious applications on the main memory differs depending on the type. A mild attack slows down the operations of storing and retrieving the information. This gives time for the data to be backed up. A severe attack may completely damage the storage locations such that the information gets lost completely. Some processes launched may allow for some of information to be transferred to a number of external locations.

Data recovery may be approached in a different way in an event of a complete failure. The failed disks may be subjected to a forceful rebooting in such a case. This forces the booting applications to start. This takes place slowly. As the disks slowly comes to life, the information is carefully mined form the dead disk segments.




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