Typical Features Of Online Backup Services

Typical Features Of Online Backup Services

The online back-up service market has been booming in the last decade or so and has become increasingly affordable. Even though there are a large number of back-up services out there, here are some of their most common features.

Encryption

Data should always be encrypted prior to being sent over the internet and should be stored in the encrypted state. It should be at least 256 bits, and the user should be given the option to use their own encryption key, which should not be sent to the server.

Network back-up

A network back-up supported back-up service can be used to back-up a number of servers, Network Attached Storage appliances and computers on a local area network situated on a single computer or device.

Continuous Back-up – Continuous Data Protection

This allows the service to back up the data continuously or on a pre-defined schedule. Both of these methods have pros and cons. Most back-up services are based on a pre-defined schedule and perform back-ups at regular intervals of time. Some services offer continuous data back-ups that are used by big financial institutions and online retailers. But, there is generally a trade-off between system resources and performance.

File-by-File Restore

Users can restore files themselves, without the help of a Service Provider by enabling them to select files by name and/or folder. Some services permit users to select files by searching for file and folder names, dates, file type, back-up set, and by tags.

Online Access To Files

Some services allow the user to access backed-up files with the help of a standard web browser. This type of functionality is not provided by many services.

Data Compression

Data will generally be compressed with the help of a lossless compression algorithm in order to reduce the amount of bandwidth used.

Differential Data Compression

Another way to further reduce network traffic is to transfer just the binary data which changed from one day to the next, which is similar to the open-source file transfer service Rsync. Better advanced remote back-up services use this method instead of transferring entire files.

Bandwidth usage

The user can select the option to use more or less bandwidth. It may even be possible to set this to change at different times of the day.

Off-Line Back-up

Off-Line Back-up helps to cover daily back-ups in time, along with and as part of the online back-up solution, while the network connection is down. Remote back-up software must perform back-up onto local media devices such as a disk, a tape drive or another server. As soon as the network connection is restored, remote back-up software will begin updating the remote data centre with the changes in the off-line back-up media.

Synchronization

Several services support data synchronization, helping users keep a consistent library of all their files across several devices. This technology can improve productivity and increase data accessibility.

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