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{{Short description|Service
{{Use dmy dates|date=June 2013}}▼
that provides users with a system for the backup, storage, and recovery of computer files}}
{{internet hosting}}
A '''remote''', '''online''', or '''managed backup service''', sometimes marketed as '''cloud backup''' or '''backup-as-a-service''', is a service that provides users with a system for the [[backup]], storage, and recovery of [[computer file]]s. [[List of online backup services|Online backup providers]] are companies that provide this type of service to end users (or clients). Such backup services are considered a form of [[cloud computing]].
Online backup systems are typically built for a client software program that runs on a given schedule. Some systems run once a day, usually at night while computers aren't in use. Other newer cloud backup services run continuously to capture changes to user systems nearly in real-time. The online backup system typically collects, compresses, encrypts, and transfers the data to the remote backup service provider's servers or off-site hardware.
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== History ==
In the mid-1980s, the computer industry was in a great state of change with modems at speeds of 1200 to 2400 baud, making transfers of large amounts of data slow (1 MB in 72 minutes). While faster modems and more secure network protocols were in development, tape backup systems gained in popularity. During that same period the need for an affordable, reliable online backup system was becoming clear, especially for businesses with critical data.
More online/remote backup services came into existence during the heyday of the [[dot-com boom]] in the late 1990s. The initial years of these large industry service providers were about capturing market share and understanding the importance and the role that these online backup providers were playing in the web services arena. Today, most service providers of online backup services position their services using the [[SaaS]] (software as a service) and [[PaaS]] (Platform as a service) strategy and its relevance is predicted to increase exponentially in the years to come as personal and enterprise data storage needs rise. The last few years have also witnessed a healthy rise in the number of independent online backup providers.
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===Ubiquitous access===
#Cloud BUR utilizes standard networking protocols (which today are primarily but not exclusively IP based) to transfer data between the customer and the service provider.
#Vaults or repositories need to be always available to restore data to any ___location connected to the Service
===Scalable and elastic===
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#Cloud Backup allows customers to align the value of data with the cost of protecting it. It is procured on a per-gigabyte per month basis. Prices tend to vary based on the age of data, type of data (email, databases, files etc.), volume, number of backup copies and RTOs.
Cloud Backup is a modern and efficient data backup solution that operates on a native cloud multitenant platform. This advanced platform is specifically designed to share resources among users, which makes data mobility possible for customers. With this solution, customers are not restricted to a single provider and can effortlessly move their data to another provider or back to a dedicated Private or Hybrid Cloud. The security of customer data is of utmost importance, and service providers take all necessary measures to ensure that customer data is always kept private and secure. Such security measures include making sure that customer data is never accessible to other customers. Service providers should also only access customer data with explicit permission. By adhering to these strict security measures, Cloud Backup providers can offer peace of mind to their customers and build trust in their services, making it a reliable and trustworthy data backup solution for businesses of all sizes.
===Enterprise-class cloud backup===
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Hybrid cloud backup works by storing data to local disk so that the backup can be captured at high speed, and then either the backup software or a [[Cloud Storage Gateway|D2D2C (Disk to Disk to Cloud) appliance]] encrypts and transmits data to a service provider. This adds protection against local
disasters.<ref>{{cite news
|author=Martin Taylor |title=Cloud backup options: Pure cloud vs hybrid cloud backup
|url=http://www.computerweekly.com/feature/Cloud-backup-options-Pure-cloud-vs-hybrid-cloud-backup
|
|publisher=TechTarget|date=May 2012}}</ref> Recent backups are retained locally, to speed data recovery operations.
There are a number of cloud storage appliances on the market that can be used as a backup target, including appliances from [[CTERA Networks]], [[StorSimple]] and
Hybrid cloud backup is also beneficial for enterprise users who have security concerns. When storing data locally before sending it to the cloud, backup users can perform the necessary encryption operations, incl. technologies like:
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== Typical features ==
; Encryption: Data should be encrypted before it is sent across the internet, and it should be stored in its encrypted state. [[Encryption]]
; Network backup: A backup service supporting network backup can back up multiple computers, servers or [[Network Attached Storage]] appliances on a local area network from a single computer or device.
; [[Continuous backup]]
; File-by-File Restore: The ability for users to restore files themselves, without the assistance of a Service Provider by allowing the user select files by name and/or folder. Some services allow users to select files by searching for filenames and folder names, by dates, by file type, by backup set, and by tags.
; Online access to files: Some services allow you to access backed-up files via a normal web browser. Many services do not provide this type of functionality.
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;File retention policies
:Many businesses require a flexible file retention policy that can be applied to an unlimited number of groups of files called "sets".
;Fully [[managed services]]
:Some services offer a higher level of support to businesses that might request immediate help, proactive monitoring, personal visits from their service provider, or telephone support.
;Redundancy
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* Some remote backup services will work continuously, backing up files as they are changed.
* Most remote backup services will maintain a list of versions of your files.
* Most remote backup services will use a 128
* A few remote backup services can reduce backup by only transmitting changed data.
* Manage and secure digital data information.
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* If the encryption password is lost, data recovery will be impossible. However, with managed services this should not be a problem.
* Residential broadband services often have monthly limits that preclude large backups. They are also usually asymmetric; the user-to-network link regularly used to store backups is much slower than the network-to-user link used only when data is restored.
* In terms of price, when looking at the raw cost of hard disks, remote backups cost about 1-20 times per GB what a local backup would.<ref>Zaborszky, Peter. (
== Managed vs. unmanaged ==
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== Scheduled vs. manual vs. event-based backup ==
There are three distinct types of backup modes: scheduled, manual and
* Scheduled Backup – data is backed up according to a fixed schedule.
* Manual Backup – backup of data is triggered by user input.
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== See also ==
{{cmn|
*[[Attix5 Online Backup]]
*[[Cloud storage]]
*[[Comparison of backup software]] (includes
*[[Comparison of file hosting services]]
*[[Comparison of file synchronization software]]
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*[[Off-site data protection]] – The practice of sending data off-site for safe keeping, but not necessarily using a remote backup service.
*[[Shared disk access]]
}}
==References==
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