Remote data backup is a service that provides users with a system for backing up and storing computer files .
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Remote backup systems are usually embedded in a client program, which runs usually once a day. This program collects, compresses, encrypts and transfers data to the servers of the backup service provider. Another type of this product also available on the market is Remote Continuous Data Protection ( TMB ).
Content
History
Most network (remote) backup services appeared during the dot-com bubble in the late 1990s . At first, there were few providers of these services on the market, but large industrialists quickly realized the importance of the role that these providers played in the web services arena, so M&A has become dominant in the last few years.
Since 2005, most data backup service providers have been using the SaaS (“software as a service”) strategy. In recent years, there has also been a significant increase in the number of backup service providers with a single and independent activity, which form part of a large industry.
Features
Backing up used files
The ability to back up files that often remain open, such as Outlook files (* .pst) or SQL databases . This allows IT administrators to start backups at any time of the day.
Multi platform
A multi- platform backup service can copy files from different platforms , such as different versions of Windows , Macintosh , and Linux / Unix .
Encrypted data transfer
Encryption to prevent data interception. This does not mean that the data will be necessarily encrypted during storage.
Criticism
Benefits
Remote backup has advantages over traditional backup methods:
- perhaps the most important aspect of copying is that backups are kept separate from the original data;
- Remote backup does not require user intervention;
- unlimited data storage;
- some remote backup services can run continuously, copying changes to files;
- most remote backup services contain a list of file versions;
- most remote backup services use 128–448-bit encryption to send data over insecure data transmission channels (for example, via the Internet );
- some remote backup services can shorten the backup time by transferring only changed data to the server.
Weaknesses
Remote backup has some disadvantages:
- Depending on the available network bandwidth , data recovery may be slow [1] . Since the data is stored separately, it can be restored either by sending it over the Internet, or via a disk sent from a remote backup service provider;
- some providers of these services do not guarantee that the data will be stored confidentially ; therefore, data encryption is recommended before saving or automating the backup process;
- in the event that the remote backup service provider goes bankrupt or is purchased by another company, this may affect data availability or the cost of using the service [1] ;
- if the encryption password is lost, then data recovery will be impossible;
- Some remote backup service providers often have monthly limits that prevent large backups.
Notes
- ↑ 1 2 Network Barn // ComputerBild : Journal. - 2010. - February 22 ( No. 4 ). - S. 62 . - ISSN 2308-815X .