Thursday, May 3, 2012

Using Disc Imaging to Back Up Data

Data is the key behind any functioning system. With the use of hard disk drives, a large amount of data can be stored in a disk conveniently. As all data can be stored in a single HDD, the possibility of disk failure poses a new threat to the availability of data. A disk may fail due to various reasons. Mechanical failure is common in old disks. Other reasons include natural tragedy like seisms, floods tide, etc.. When sensitive info is stored in HDD, it becomes essential to reduce the opening of informations loss. This is accomplished by storing the informations redundantly. The process of replicating the contents of a information memory device to another device is called in disc tomography.
What is disk imaging?
It refers to the exact duplicate of the HDD which contains sensitive information. All data stored on the hard drive is copied and exact image is taken. Files and copied exactly, verbatim. Image files are often .iso files in which you will mount using certain software. You can also burn these iso files to a CD for easy installation and reference in the future.
How disk imaging software works?
The imaging software creates a clone using the image of the disk. The software does not create a backup with the exact information present in HDD. If this has to be done by the software, then to create a backup of a 80GB hard drive, another 80GB hard drive would be needed. This is not a viable option. Tomography does not deploy informations mirroring technique. The software package will make an image of the disc which is much smaller in size. This ikon can be then used to retrieve the informations using informations retrieval package.

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