News tagged with backup
Cloud computing's ubiquity brings down prices
If you've ever had your laptop stolen, watched your toddler baptize your PC with Pepsi, or had your MacBook come to a cold, dead stop, you know that the digital memories we store on our home computers are anything but indelible.
Jan 05, 2012 |
3.3 / 5 (4) |
1
EU Commissioner calls for new tools for bloggers
(AP) -- The European Union should help teach bloggers living under oppressive regimes how to communicate freely and avoid detection, and develop technology to help them, the bloc's digital affairs commissioner ...
Dec 09, 2011 |
1 / 5 (1) |
0
Theft of data on 4M patients part of wider problem
The theft of a computer containing information on more than 4 million patients of a major Northern California health care provider may be among the largest breaches of health care data in recent years, but it's far from ...
Nov 18, 2011 |
not rated yet |
0
Review: Nike device improves, but oversimplified
(AP) -- Since 2003, I've tried several fitness accessories that use the GPS system to tell you how far and how fast you're running. I've generally liked them, except for the fact that they don't work well ...
Electronics / Consumer & Gadgets
Oct 27, 2011 |
not rated yet |
0
Japan finds radiation in rice, more tests planned
(AP) -- Japan is ordering more tests on rice growing near a crippled nuclear plant after finding elevated levels of radiation, government officials said Saturday.
Sep 24, 2011 |
5 / 5 (2) |
0
Irene takes out some East Coast cellphone service
(AP) -- Wireless networks fell quiet Sunday in some coastal areas of North Carolina and southern Virginia, but calls were going through in most areas affected by Tropical Storm Irene, the Federal Communications Commission ...
Aug 29, 2011 |
not rated yet |
0
Astronauts fix another failed computer on shuttle
(AP) -- The pilots on NASA's last space shuttle flight fixed another one of their main computers Friday after it failed and set off an alarm that awoke the entire crew.
Space & Earth / Space Exploration
Jul 15, 2011 |
not rated yet |
2
Japan suspends waste water nuclear operation
Tokyo Electric Power Co. Saturday halted an operation to clean highly contaminated waste water at a crippled Japanese nuclear plant due to higher-than-expected radiation levels.
Technology / Energy & Green Tech
Jun 18, 2011 |
not rated yet |
4
Oldest US nuclear reactor: a 'disaster' in waiting?
A sleepy New Jersey town has popped onto people's radar screens because it has the oldest running nuclear power plant in the United States -- and, some say, the most dangerous.
Technology / Energy & Green Tech
Mar 24, 2011 |
3.4 / 5 (8) |
17
Gadgets: Easy video editing for PC
Getting started with video cameras is pretty easy, but editing the video is a whole different problem -- especially for beginners.
Electronics / Consumer & Gadgets
Jul 02, 2010 |
1 / 5 (1) |
0
Gadgets: Western Digital's portable hard drive displays vital info
Storage is one of the most neglected areas for most digital users, so anything to make that job easier is welcome.
Electronics / Consumer & Gadgets
Mar 25, 2010 |
3 / 5 (2) |
0
Tech resolutions for the new year
It's time to take stock of the year that was and figure out how to make the next one better.
Jan 02, 2010 |
1 / 5 (1) |
0
Gadgets: iP1 iPod/iPhone dock, Gboard keyboard
The iP1 iPod/iPhone dock from iHome is part of the company's Studio Series launched earlier this year.
Electronics / Consumer & Gadgets
Dec 10, 2009 |
not rated yet |
0
Solar power generation around the clock
(PhysOrg.com) -- A Californian company, SolarReserve, is developing a solar power system that can store seven hours' worth of solar energy by focusing mirrors onto millions of gallons of molten salt, allowing ...
Technology / Energy & Green Tech
Nov 05, 2009 |
4.5 / 5 (31) |
15
There's no perfect way to back up your hard drive
If there's one thing to keep in mind about computers, it's this: Hard drives fail. I relearned that lesson recently when one of my laptop's external hard drives stopped working and then my 4-year-old iPod died.
Oct 07, 2009 |
1 / 5 (4) |
3
Backup
In information technology, a backup or the process of backing up is making copies of data which may be used to restore the original after a data loss event. The verb form is back up in two words, whereas the noun is backup.
Backups have two distinct purposes. The primary purpose is to recover data after its loss, be it by data deletion or corruption. Data loss is a very common experience of computer users. 67% of Internet users have suffered serious data loss. The secondary purpose of backups is to recover data from an earlier time, according to a user-defined data retention policy, typically configured within a backup application for how long copies of data are required.
Though backups popularly represent a simple form of disaster recovery, and should be part of a disaster recovery plan, by themselves, backups should not alone be considered disaster recovery. Not all backup systems or backup applications are able to reconstitute a computer system, or in turn other complex configurations such as a computer cluster, active directory servers, or a database server, by restoring only data from a backup.
Since a backup system contains at least one copy of all data worth saving, the data storage requirements are considerable. Organizing this storage space and managing the backup process is a complicated undertaking. A data repository model can be used to provide structure to the storage. In the modern era of computing there are many different types of data storage devices that are useful for making backups. There are also many different ways in which these devices can be arranged to provide geographic redundancy, data security, and portability.
Before data is sent to its storage location, it is selected, extracted, and manipulated. Many different techniques have been developed to optimize the backup procedure. These include optimizations for dealing with open files and live data sources as well as compression, encryption, and de-duplication, among others. Many organizations and individuals try to have confidence that the process is working as expected and work to define measurements and validation techniques. It is also important to recognize the limitations and human factors involved in any backup scheme.
For more information about Backup, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
