What is Data Recovery on Mac Computer

Data recovery is the process of retrieving lost, missing, corrupted or formatteddata from auxiliary devices, secondary storage or files that were previously saved but cannot be obtained. Recovery is necessary if there is physical damage to the storage devices or if the algorithms for the accessing data has been damaged. However, the most common data recovery instances involve data deletion, a breakdown of the storage devices and collapse of the operating system. The aim is basically copying required files from the spoiled storage to a functional storage device. ALive CD can be used to achieve this, which in most cases by default provide a way to mount system drives and backup drive. It also helps to move the data from the damaged storage to a storage. These
problems can nonetheless be prevented by partitioning the disks and frequently backing up important data files on another partition.

Another instance is where we experience failure at the drive level. This entails a corrupted file system or failure of hard disk drive or partitioning of the drive. In all the three scenarios, it is hard to read the data from the storage
devices. Solutions vary from repairing the logical file system, updating the drive recovery techniques to replacing the hardware drivers that have been physically damaged. Hardware drive replacement will enable the data to be in a process-able form that can be duplicated to a new drive. Incase the drive recovery is required, it implies that the drive has permanently collapsed. In this case, the focus shifts to recovering any data that can be read.

Another scenario is whereby files have been deleted from a memory location by the users. The contents of the erased files are not immediately recovered from the hard disk drive. Instead, removal of references to the files in the directory structure is done. The space the erased data occupied is then available for data overwriting later. Deleted data still exists on the hard disk drive. The original contents of the file remain but in fragments and recovery is possible if it has not been overwritten by other files.

Data recovery is also a term in the forensic application. In this context, data may be encrypted or hidden but it does not mean it has been damaged or deleted. Data is in a computer can be hidden or encrypted for security purposes, among them are virus attacks. To recover such files computer forensic experts are required.

Phase one Repair the physical drive

The physical drive is repaired to be in a form that can run or be in a state which allows data to be accessed from from it.

Imaging a drive to another drive or to a disk image file Developing an image of a damaged drive will make sure there is a duplicate of the data on another device. This ensures safety when performing testing and recovering protocol without causing any harm to the source. Phase three Logical files recovery, partition and filesystem configuration.

When the drive has been mounted, (clone) to another drive, it is appropriate to try retrieving the lost data. If there was a logical failure of the drive, the clone is used to repair the master boot record to enable reading of the files system’s data structure and recover the stored data.

Repair retrieved damaged data

This can be done by use of software procedure or by reconstructing the document manually using editors like hex editor. This helps in solving the problem that arises when a file is saved to a part of the drive that has collapsed.

Data recovery has grown to be a vital technique in the technology. It has also brought efficiency in record keeping. However, one needs to invest in soft wares and technical experts.