Although storage devices are becoming increasingly reliable, the loss of digital information continues to be a typical occurrence. Human mistakes, software faults (for instance: computer viruses), power outages, and hardware problems are all common causes of data loss and corruption. However, the good news is that information stored on a digital device can nearly always be recovered by Data recovery methods. The following article discusses what data recovery is, what the most typical data loss problems are, and much more relevant information. 

Why is Recovery Method Needed?

To put it another way, data recovery refers to the process of retrieving data that has been deleted or damaged on a storage device and can no longer be accessible. Only if the content of the missing files can be found elsewhere in the storage may various methods be employed to recover them. This includes documents created but never saved to the hard drive because of an outage or other failure of the computer’s power supply. This is not covered by data recovery. Furthermore, no existing restoration method can handle cases of permanent erasure, which occurs when another piece of data takes up its storage space; in these scenarios, the lost files can only be recovered from an external backup.

As a rule, Data recovery methods are classified into two categories: those that use software to recover data and those that need the repair or replacing the damaged hardware components in the laboratory. All but a small percentage of cases require a software-based method for data recovery.

Experts utilize specialized utilities to read out data and give it usable form to the user for further copying. In the most extreme cases, such as when some mechanical or electrical portions of the drive no longer function, all steps are geared towards a one-time extraction of the vital content, without the possibility of continuous usage of the affected device.

Causes of Data loss that leads to the data recovery process

a)    Factors that have contributed to data loss:

According to data from 2016 collected by the United Kingdom, most data is lost by human error rather than intentional attacks. Someone can accidentally send information to the wrong person and data breaches occur. 

b)    Other common causes of data loss:

power outages, power failure, natural calamities, failures of equipment, malfunctions. Also, deletion of data unintentionally, formatting a hard drive, various computer virus attacks, errors made by operators, destruction of hardware, etc., causes data loss, which leads to the data recovery process.

Different Types of Data Recovery Methods 

Because no two data loss circumstances are the same, it is critical to select a backup solution that can handle a wide range of restore and recovery requirements while minimizing the number of data recovery procedures. Let’s talk about some data recovery techniques.

data data recovery backup solution
Data recovery – Backup Solution

a.  File Restore:

A file restore is a process in which a lost file or files is restored from a backup to their original location on the computer. An administrator can use SIRIS to back up their lost data. SIRIS is a data protection solution built to protect clients’ data.

b. Volume restores:

To do a volume restoration on SIRIS, you must first select a recovery point from which the contents of the selected recovery point will be shared as an iSCSI target. If there is no need for a bare-metal restore, files and folders are retrieved with their permissions intact. 

c. Bare metal restores:

Backup to a new physical server
Backup to a new physical server

A whole system image (the protected machine’s data, programs, and operating system) from a backup to a new physical server from an existing one is restored in this process. The term “bare metal” refers to the hardware on the new system that has not yet been used or configured. If a primary server fails, is damaged, or is otherwise made useless for any reason, then it is essential to perform a bare-metal restore.

d. Local virtualization:

Local virtualization is a characteristic of business continuity and disaster recovery solutions that allow rapid corporate activities. This uses hypervisor technology to boot a virtual server from a snapshot on a backup device. Businesses can be carried on with their general operations while repairing or replacing the primary server. Local virtualization reduces the likelihood of costly company downtime to almost zero.

e. Cloud virtualization:

Cloud virtualization is almost the same as others, but it takes place in the cloud rather than on a backup device on a local network. Tertiary cloud copy creation of backup server images is possible with few BCDR solutions. To keep business activities running, if both the primary and backup servers are rendered inoperable, a cloud backup server image can be used.

How does a data recovery program work?

Data recovery software is frequently all that is needed to recover data from a hard drive that hasn’t been tampered with. But keep in mind that if a hard drive has been wiped, no data can be recovered. As a result, the storage must not be written until the last file has been recovered.

Several data recovery tools use metadata analysis, raw file recovery, or a combination of the two approaches. Metadata is information about a service that is buried in a file system. The software can identify and locate key storage structures that keep track of file content, characteristics, and directory hierarchies via its analysis. It is then processed and used to restore the damaged file system. If you want to recover files with their original names, directories, dates, and timestamps, this is the best option. 

Depending on the nature of the file system processes used to get rid of “unnecessary” things, it may be possible to recreate the entire folder structure if the metadata isn’t significantly distorted. However, if metadata is missing, such an analysis cannot be carried out effectively. That’s why it’s critical to avoid using file system repair tools or performing any other actions that could alter the file system until the data has been properly recovered.

Metadata analysis is often not enough to get the desired result; thus, the search for files based on available content is usually carried out. “Known content” in this context does not refer to the full file’s raw data; rather, it refers to specific patterns that are common to files of a given format and may point to the start or end of a file. They are called “file signatures,” and they help identify whether or no data on the storage device belongs to a specific file format. 

Using this procedure, recovered files are given a new extension, new names, and assigned to new folders, which are often created for different sorts of files. Some files may not have signatures or only a signature at the beginning of a file, making it difficult to know where it ends. During a single scan, data recovery software may employ all of the procedures listed above to recover the deleted files. Information on other data recovery methods can be found under data media types.

Restore and Backup: What are the connections?

Producing a copy of data is called backup. It is essential to prevent the data from being deleted or corrupted by accident or maliciously, from hardware failure, ransomware attacks, and other sorts of data loss. Data backups can be made on-site, off-site, or a combination of the two. Any business continuity/ disaster recovery plan must include an offsite data backup as a critical component.

The process of data retrieval from a backup is known as restore. It’s a way to retrieve a computer back to its earlier state. Business continuity and disaster recovery (BCDR) solutions, designed to restore data and operations as quickly as possible, are commonly referred to as BCDR solutions.

The time it takes to restore and recover data can vary significantly depending on the backup type and data recovery method you use. Restoring an entire server requires much more equipment than restoring a single file. Finally, vital data may be stored on workstations, local servers, or in the cloud, depending on the situation. It is very important to take these factors for a backup and recovery solution.

Why Data Recovery So Expensive?

Data recovery is a significant process to get back your lost data. But it is an expensive technique because data recovery requires high security. Besides, the employee should be professional, so their salary needs to be very high. Yet the data recovery process is value for money for any person.


The data recovery process can be influenced by different variables, like circumstances of data loss, data recovery software, the target medium, etc. Several desktop and laptop companies provide backup software systems to their customers. That allows users to restore lost files by themselves, but restoring a corrupted database requires more procedures and may need the help of IT professionals.

For the files which are not backed up, recovery of them can be possible. Also if a file is deleted from the computer’s file system that is still existing on a hard disk by using data recovery methods.