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 Data Recovery

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RašytiTemos pavadinimas: Data Recovery   Št. 07 09, 2011 5:44 pm

Data Recovery Is the process of salvaging data from damaged, failed, corrupted, or inaccessible storage media when it cannot be accessed normally. We explain the differing data recovery scenarios in detail here data recovery a technical explanation. In data recovery, often the data is being salvaged from storage media such as hard disk drives, storage tapes, CDs, DVD's, RAID, and other electronics. Data recovery may be required due to logical damage or physical damage to the storage device or to the file system that prevents it from being mounted by the host operating system. Some data recovery scenarios involve a disk-level failure, such as a compromised file system or disk partition or a hard disk failure. In any of these cases, the data cannot be easily read. Depending on the situation, data recovery solutions involve repairing the file system, partition table or master boot record, or hard disk data recovery techniques ranging from software-based recovery of corrupted data to hardware replacement on a physically damaged disk. If hard disk data recovery is necessary, the disk itself has typically failed permanently, and the focus is rather on a one-time recovery, salvaging whatever data can be read. In other scenarios, files have been deleted from a storage medium. Typically, deleted files are not erased immediately; instead, references to them in the directory structure are removed, and the space they occupy is made available for later overwriting. In the meantime, the original file may be restored. Although there is some confusion over the term, data recovery may also be used in the context of forensic data analysis applications or espionage.
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