In computing, data recovery is a process of salvaging inaccessible data from corrupted or damaged secondary storage, removable media or files, when the data they store cannot be accessed in a normal way. 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 device or logical damage to the file system that prevents it from being mounted by the host operating system (OS). 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. Another scenario involves a drive-level failure, such as a compromised file system or drive partition, or a hard disk drive failure. In any of these cases, the data cannot be easily read. Depending on the situation, solutions involve repairing the file system, partition table or master boot record, or drive recovery techniques ranging from software-based recovery of corrupted data, hardware- and software-based recovery of damaged service areas (also known as the hard disk drive's "firmware"), to hardware replacement on a physically damaged drive. If a drive recovery is necessary, the drive itself has typically failed permanently, and the focus is rather on a one-time recovery, salvaging whatever data can be read.The term "data recovery" is also used in the context of forensic applications or espionage, where data which have been encrypted or hidden, rather than damaged, are recovered. Recovering data from physically damaged hardware can involve multiple techniques. Some damage can be repaired by replacing parts in the hard disk. This alone may make the disk usable, but there may still be logical damage. A specialized disk-imaging procedure is used to recover every readable bit from the surface. Once this image is acquired and saved on a reliable medium, the image can be safely analyzed for logical damage and will possibly allow much of the original file system to be reconstructed. In some cases, data on a hard disk drive can be unreadable due to damage to the partition table or file system, or to (intermittent) media errors. In the majority of these cases, at least a portion of the original data can be recovered by repairing the damaged partition table or file system using specialized data recovery software such as Testdisk; software like dd rescue can image media despite intermittent errors, and image raw data when there is partition table or file system damage. This type of data recovery can be performed by people without expertise in drive hardware, as it requires no special physical equipment or access to platters.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.Recovery experts do not always need to have physical access to the damaged hardware. When the lost data can be recovered by software techniques, they can often perform the recovery using remote access software over the Internet, LAN or other connection to the physical location of the damaged media. The process is essentially no different from what the end user could perform by themselves. Remote recovery requires a stable connection with an adequate bandwidth. However, it is not applicable where access to the hardware is required, as in cases of physical damage. RAID (originally redundant array of inexpensive disks, now commonly array of independent disks) is a data storage virtualization technology that combines multiple physical disk drive components into a single logical unit for the purposes of data redundancy, performance improvement, or both. Data is distributed across the drives in one of several ways, referred to as RAID levels, depending on the required level of redundancy and performance. The different schemas, or data distribution layouts, are named by the word RAID followed by a number, for example RAID 0 or RAID 1. Each schema, or RAID level, provides a different balance among the key goals: reliability, availability, performance, and capacity. RAID levels greater than RAID 0 provide protection against unrecoverable sector read errors, as well as against failures of whole physical drives.

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My height has come as a blessing for Ek Deewana Tha – Namik Paul

My height has come as a blessing for Ek Deewana Tha – Namik Paul

It is a well-known fact the Namik is quite tall, about six feet and four inches. But what many do not know is that while everyone loves this tall, fair and …

Ranvir will persuade Aanchal to fall in love with Kabir again in Haasil

Ranvir will persuade Aanchal to fall in love with Kabir again in Haasil

With its gripping narrative, Sony TV’s Haasil, which is produced by Alchemy Films, has successfully managed to keep the audience hooked to the show and as a …

‘IMPOSTER’ Sonia tries to murder Raavi in Dil Dhoondta Hai

‘IMPOSTER’ Sonia tries to murder Raavi in Dil Dhoondta Hai

We recently reported about the ‘Cheer Haran’ drama in Zee TV’s Dil Dhoondta Hai (Dashami Creations). With Hritu Dudani’s entry as Sonia in the show, …

Cameos are like visiting relatives: Sara Khan

Cameos are like visiting relatives: Sara Khan

TV actress Sara Khan says doing cameos roles makes her feel like visiting a relative’s place. “I’m enjoying doing cameos as they bring not …

Smita Singh is holidaying at New Zealand!

Smita Singh is holidaying at New Zealand!

Television actress Smita Singh, who has worked in shows like Bhagyavidhaata, Hitler Didi and Thapki Pyar Ki, is holidaying and loving it. She has been to …

Vineet Kumar and Abhilasha Jhakar lock their marriage date!

Vineet Kumar and Abhilasha Jhakar lock their marriage date!

The handsome hunk Vineet Kumar Chaudhary who has done shows like Yeh Hai Mohabbatein and Naagin 2 got engaged to his long time girlfriend and Saath Nibhana …

Rohan Mehra and Karishma Tanna to join Karan Patel in Bigg Boss 11

Rohan Mehra and Karishma Tanna to join Karan Patel in Bigg Boss 11

This weekend’s episode is going to be a crackling one and the most anticipated one by far! This whole week has been a rollercoaster one in terms of content. …

Gear up for Sachin Tyagi’s melodious treat in Yeh Rishta Kya Kehlata Hai

Gear up for Sachin Tyagi’s melodious treat in Yeh Rishta Kya Kehlata Hai

Actors are always keen on exploring their horizons. It is not just acting that keeps the creative souls ticking. Popular actor Sachin Tyagi, who is currently …

Ex-contestant Sshivani Durgah calls Vikas- Shilpa FAKE & DEMONIC; supports Hina

Ex-contestant Sshivani Durgah calls Vikas- Shilpa FAKE & DEMONIC; supports Hina

Bigg Boss 11 has been creating buzz quite strongly. However one strange thing, we have realised this season is, every other celebrity who was earlier a part of …

Balwant and Rantej to target Anushka in Colors’ Laado 2

Balwant and Rantej to target Anushka in Colors’ Laado 2

Colors’ Laado 2 (Shakuntalam Telefilms and Dhaval Gada) will get all the more intense in the upcoming episodes. The viewers already witnessed a high voltage …