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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.

5 reasons that make the Colors of India Folk song special episodes of Indian Idol 10 a must watch!

5 reasons that make the Colors of India Folk song special episodes of Indian Idol 10 a must watch!

This weekend the Top 13 contestants of India’s biggest singing reality show Indian Idol 10 will be showcasing a folk song challenge, where they will be …

BARC India Ratings: Yeh Rishta Kya Kehlata Hai in top 3; Dil Hai Hindustani 2 enters the charts!

BARC India Ratings: Yeh Rishta Kya Kehlata Hai in top 3; Dil Hai Hindustani 2 enters the charts!

MUMBAI: It’s BARC time! reviewtv brings to you this week’s ratings of your favourite shows and channels. Star Plus is at the first position in the urban …

Have you missed your favourite show last night? Here we offer you a complete written update

Have you missed your favourite show last night? Here we offer you a complete written update

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Parul and Raghab to reach Anandabhumi in Zee Bangla’s Saat Bhai Champa

Parul and Raghab to reach Anandabhumi in Zee Bangla’s Saat Bhai Champa

Kolkata: Zee Bangla’s fantasy drama Saat Bhai Champa is set to unfold some interesting twists in upcoming episodes! Parul (Promita Chakrabartty) and Raghab …

Did not give screen test for Papa By Chance: Manasi Salvi

Did not give screen test for Papa By Chance: Manasi Salvi

MUMBAI: Actress Manasi Salvi will play actor Zebby Singh’s on-screen mother in upcoming romantic comedy Papa By Chance on Star Bharat. The television show …

It’s a privilege to work on Leena Aunty’s script: Mishmee on entering Phagun Bou

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Kolkata: Actress Mishmee Das recently entered Star Jalsha’s ongoing popular show, Phagun Bou (Magic Moments), which features Vikram Chatterjee and Oindrila …

Hina Khan holds THIS close to her heart!

Hina Khan holds THIS close to her heart!

MUMBAI: Hina Khan has been in news right from the day she announced her exit from Star Plus’ flagship show Yeh Rishta Kya Kehlata Hai. She gained even more …

Prediction: What’s in store for birthday boy Shabbir Ahluwalia?

Prediction: What’s in store for birthday boy Shabbir Ahluwalia?

MUMBAI: A star was born today (10 August)! Charming actor and host Shabbir Ahluwalia celebrates his birthday today, and he has been showered with well wishes …

Legendary singer Sukhwinder Singh roped in for Kullfi Kumarr Bajewala

Legendary singer Sukhwinder Singh roped in for Kullfi Kumarr Bajewala

MUMBAI: Star Plus’ daily Kullfi Kumarr Bajewala has been receiving rave reviews for its brilliant story-line and performances by its actors, Aakriti Sharma …

Indian Idol is my all-time favourite reality show: Mohit Abrol

Indian Idol is my all-time favourite reality show: Mohit Abrol

MUMBAI: The magnum opus show Porus on Sony Entertainment Television is keeping the audiences glued to the screen with its unique characters and creative …