Data Racovery

Data recovery is the of recovering data's that were damaged, failed, corrupted, not accessible secondary storage media that cannot be accessed normally. The data are often recovered from storage device or medias such as hard disk drives, storage tapes, CDs, DVDs, RAID, and other electronic devices. Recovery of the data may be required due to the physical damage to the storage devices or logical damage to the file system that prevents it from being mounted by the host operating system. The most common data recovery scenario involves an operating system (OS) failure (typically on a single-disk, single-partition, single- OS system), in which case the main thing is simply to copy all wanted files to another disk. This type of recovery process can be done or accomplished with a live CD, most of which provides a means to mount the system drive and backup disks or removal media, and to move the files from the system disk to the backup media with a file media with a file manager or optical disc authoring software. Such causes can often be mitigated by disk partitioning and consistently storing valuable data files (or copies of them) on a different partition from the replaceable OS system files. Another scenario involves 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, solutions involve repairing the file system, partition table or master boot record, or hard disk recovery techniques ranging from software based recovery of corrupted data to hardware replacement on a physically damaged dis. if hard disk recovery is necessary, the disk itself has typically failed permanently, and the focus is rather on a one-time recovery, recovering whatever data can be read.