Data Recovery refers to the process of restoring data, regardless of whether the data was lost, deleted, corrupt, inaccessible, or compromised in any other way. When it comes to IT, data recovery usually involves the recovery of data from a backup and its restoration to an external storage system, a desktop, a laptop, or a server.
The Causes of Data Loss
According to a 2016 research study from the United Kingdom, more than 80% of data loss is caused by human error. The most common type of breach occurs when data is sent to the wrong person.
Many other reasons can also cause data loss, including power outages, natural disasters, equipment failures, unintended formatting of hard drives, logical errors, firmware corruption, continued use of a computer after it has failed, physical damage to hard drives, theft of laptops, and spilled coffee.
Data Recovery Process
- The data recovery software used to create the backup and the backup target media must both be compatible in order to recover data. When restoring a corrupted database from a tape backup, users can usually restore files themselves, while desktop and laptop backup software allows users to do so. In addition to recovering files that have been deleted or weren't backed up, file recovery companies can also recover fragments of files still present on a hard drive as a result of not backing them up.
- Since files are stored separately from their information, it is possible to recover a file's contents. For example, the file allocation table in Windows records a file's Identifies which files are located on a hard drive and where they are located using infrared information. A hard drive's allocation table resembles a book's contents page, whereas its actual files are like pages in a book.
- When data needs to be recovered, it is usually only the file allocation table that needs to be repaired. The hard drive may still be in excellent condition if the file can still be recovered. It is possible to recover files that are undamaged, intact, and unencrypted. The file may be damaged, missing, or encrypted, and it may be possible to recover it using another method. If a file is physically damaged, it can still be rebuilt. There are uniform headers at the beginning of many applications, including Microsoft Office, to distinguish them from other applications. Some of the data can be recovered by manually reconstructing the file headers using some utilities.
- In the vast majority of cases, companies recover data using multiple technologies, which means that tapes are not the only way. You may need to access your data immediately after a disaster after saving it to tape. Tapes can take a long time to recover. Transporting tapes can be hazardous as well.
- Moreover, operations conducted at a remote location may not require access to all production data. Identification of what can be left behind is a smart idea to determine what must be recovered and what should be left behind.
Techniques for Recovering Data
- Users work on the backup server to minimize the recovery window with instant recovery, also known as recovery in place. Virtual Machines (VMs) are created to backup data, and the recovery process is initiated in the background. A snapshot is created to preserve the backup in its original state. Once recovery is complete, users have access to their original VM again, so they are unaware of the recovery process.
- One way to avoid the labor-intensive and expensive process of recovering data is by preventing it from being lost in the first place.
- Companies can identify and prevent data leaks by using Data Loss Prevention (DLP) products, which come in two versions: standalone and integrated. As a software or appliance, standalone DLP products are available.
- DLP products found on perimeter security gateways can be used to detect sensitive data at rest and in motion.
- Comparatively to standalone data loss prevention products, integrated DLP products do not typically share the same management consoles, policy management engines, or data storage.
Integrating Data Recovery into a DR Plan
- Organizations should outline who will be responsible for recovering data, how it will be recovered, and acceptable recovery time and point objectives in their disaster recovery plans. Steps for recovering data should also be included.
- Among the standards to review are SP 800-34 of the National Institute for Standards & Technology and ISO 24762 and 27031 of the International Organization for Standardization.
In order to understand their data needs and to determine the minimum amount of time required to restore them to their previous state, organizations can implement business impact analysis. Data loss and data recovery can become challenging when dealing with unstructured data stored on multiple devices.
However, certain steps can be taken to mitigate the damage. By classifying data according to its sensitivity, determine which classifications need to be secured company. safeguard sensitive information. content securely.