Sometimes a hard disk breaks. The hard disk doesn't start anymore. This happens a lot with an ssd. When a hard disk doesn't operate anymore the data, files and information stored on the hard disk can be lost. An option to make a little bit sure the information keeps available it is to make a backup of the hard disk. A backup is a copie of the files. The amount of work put into making and storing backups depends of the value of the information. Pictures of a holiday and of the childhood can't be taken again. People often regret the loss of pictures. A backup gives more opportunities to save information like pictures.
The best way to handle a back up is to make several copies of the information in several ways on several media and to store these media holders in several places far from eachother.
Several ways are like making a digital copy of information. Another way is to print the information and to store the prints. The same can be applied to pictures. A picture can be stored in a digital form. It is possible to print the picture and to store the printed version on paper too.
Some media that can be used are an external hard disk, a cd, a dvd and a usb-stick.
Online storage space is another option to save information.
The several media need to be kept on geographical locations that are far from another. When the media are kept in the same house the information can get lost by a fire or by burglars and thieves. When the information is kept in several houses in the same city the information can get lost by an earthquake, a hurricane or a water flood. When the information is kept on different media on locations far from eachother the chances that both locations get struck by a nature disaster are relative small.
A complete 100% full guarantee that information never gets lost is almost impossible. On the other hand can a simple action like making a backup each day and keeping the backup copies safe on several media on several locations far from eachother help to recover the information in the case of the loss of information.
Edited by zenia, 16 June 2011 - 12:21 AM.