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Data recovery

External hdd drive data recovery

Before drawing attention of people in this article, it is very much important to bring in awareness of the people what data recovery is all about.

In computing, data recovery is a process of salvaging inaccessible data from corrupted storage, or removable media or files, when the data stored could not be accessed in a natural way. The most common data recovery scenario involves an operating system failure, malfunction of a storage device, accidental damage or deletion, etc. (typically, on a single-drive, single-partition, single-OS system), in which case the goal is simply to copy all wanted files to another drive. This can be easily accomplished using a Live CD, many of which provide a means to mount the system drive and backup drives or removable media, and to move the files from the system drive to the backup media with a file manager or optical disc authoring software. Such cases 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.

However, there are four phases of hdd data recovery.

There are:

Phase 1: Repair the hard disk drive file.

Phase 2: Image the drive to a new drive or disk infrastructures.

Phase 3: Logical recovery of files, partition, and MBR and file system structure retrieved.

Phase 4: Repair damaged files that were retrieved.

There are two types of damages leading to data damage hence, the data needs to get recovered. They are: 1. Physical Damage. 2. Logical damage.

Physical damage always causes at least fewer loss of data and in several issues the logical structures of the file system gets damaged. Any logical damage must be dealt beforehand the files can be salvaged from the failed media storage.

Most physical damage cannot be repaired by end users. For example, opening a hard disk drive in a normal environment can allow airborne dust to settle on the platter and become caught between the platter and the read/write head, causing new head crashes that further damage the platter and thus compromise the recovery process. Furthermore, end users generally do not have the hardware or technical expertise required to make these repairs. Consequently, data recovery companies are often employed to salvage important data with the more reputable ones using class 100 dust- and static-free clean rooms.

The term “logical damage” refers to situations in which the error is not a problem in the hardware and requires software-level solutions.

However, in spite of these adversities, there are various ways to do hard disk data recovery. Sometimes data can be recovered using relatively simple methods and tools; more serious cases can require expert intervention, particularly if parts of files are irrecoverable. Data carving is the recovery of parts of damaged files using knowledge of their structure.

In the field of hard drive data recovery UK has got a good market. Some eminent data recovery services are, Kroll Ontrack near Global House, Brighton Hard Drive Recovery London, and Data Recovery near Tower Point etc.

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