World Reviews

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.

Neha Dhupia gets miffed with Nikhil Chinapa

Neha Dhupia gets miffed with Nikhil Chinapa

MUMBAI:Actress Neha Dhupia is miffed with “Roadies Xtreme” gang leader Nikhil Chinapa, and has asked him to mind his manners. In an upcoming …

Bijay Anand, Geetanjali Tikekar, Ritu Vij & Manraj Singh in Kabhi Khushi Kabhi Gham’s remake

Bijay Anand, Geetanjali Tikekar, Ritu Vij & Manraj Singh in Kabhi Khushi Kabhi Gham’s remake

reviewtv was the first one to exclusively break the news about Ekta Kapoor bringing the remake of blockbuster film Kabhi Khushi Kabhie Gham on small screen. …

Chakor objects Sooraj-Karan’s plans of modernizing Azadganj in Udann

Chakor objects Sooraj-Karan’s plans of modernizing Azadganj in Udann

MUMBAI: Colors’ Udann (Guruodev Bhalla Productions) has constantly strived to bring to its viewers exciting track much to the entertainment of the audience. …

Aakriti Sharma to play Sikh boy in Kullfi Kumarr Bajewala

Aakriti Sharma to play Sikh boy in Kullfi Kumarr Bajewala

MUMBAI: Child actress Aakriti Sharma, who will be seen as a Sikh boy in an upcoming sequence of her show Kullfi Kumarr Bajewala, says she is taking cues on how …

Pavitra Punia to play a Naagin in Kaleerien

Pavitra Punia to play a Naagin in Kaleerien

Mumbai: The daily soap Kaleerien has been witnessing many new entries off lately. It recently saw Kyunki… fame Shilpa Saklani entering the narrative as a …

Child artist Deepika & Randeep prove that age is no bar to being friends

Child artist Deepika & Randeep prove that age is no bar to being friends

Mumbai: The age factor should never deter anyone from making new friendships. One such friendship between people who are far apart in age is visible on the …

Porus hits a milestone of 100 Episodes!

Porus hits a milestone of 100 Episodes!

Mumbai: India’s global television series, Porus has successfully scored a milestone by airing 100 episodes. Produced by Swastik Productions, the historical …

Manit Joura learns to play drums in 30 mins for Kundali Bhagya

Manit Joura learns to play drums in 30 mins for Kundali Bhagya

Mumbai: Zee TV’s top-rated daily fiction drama, Kundali Bhagya traces the journey of Kumkum Bhagya lead Pragya’s two sisters – Preeta (Shraddha Arya) …

Pankti and Ahaan to elope in Tu Aashiqui

Pankti and Ahaan to elope in Tu Aashiqui

Mumbai: Colors’ Tu Aashiqui (Gurodev Bhalla Productions) has some power packed drama in store for the viewers. The romantic family drama is already high on …

What? Avni to get raped in Naamkarann

What? Avni to get raped in Naamkarann

Mumbai: The romantic drama Naamakarann is entertaining the audience with its gripping storyline and the chemistry of the lead pair. The show which airs on Star …