Process of salvaging inaccessible data from corrupted or damaged secondary storage
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In computing, data recovery is a process of retrieving deleted, inaccessible, lost, corrupted, damaged, or formatted data from secondary storage, removable media or files, when the data stored in them cannot be accessed in a usual way. [1] The data is most often salvaged from storage media such as internal or external hard disk drives (HDDs), solid-state drives (SSDs), USB flash drives, magnetic tapes, CDs, DVDs, RAID subsystems, and other electronic devices. Recovery may be required due to physical damage to the storage devices or logical damage to the file system that prevents it from being mounted by the host operating system (OS).[2]
Logical failures occur when the hard drive devices are functional but the user or automated-OS cannot retrieve or access data stored on them. Logical failures can occur due to corruption of the engineering chip, lost partitions, firmware failure, or failures during formatting/re-installation.[3][4]
Data recovery can be a very simple or technical challenge. This is why there are specific software companies specialized in this field.[5]
^"Data Recovery Explained". www.ibm.com. Archived from the original on 28 August 2022. Retrieved 28 August 2022.
^"Data Recovery Explained". www.ibm.com. Archived from the original on 28 August 2022. Retrieved 1 December 2022.
^"What is logical failure?". Disklabs Digital Forensics and Data Recovery. Archived from the original on 1 December 2022. Retrieved 1 December 2022.
^"What Happens When Drives Experience Logical Failure?". www.streetdirectory.com. Archived from the original on 1 December 2022. Retrieved 1 December 2022.
^"Data Recovery – Backup Technology". www.dell.com. Archived from the original on 1 December 2022. Retrieved 1 December 2022.
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