Those who have taken the trial for any kind of Cloud backup service will tell you that Cloud backup really delivers what it claims. Windows Server backups are indeed faster. Speed bumps do not seem to exist. How do Cloud backups achieve this?
The Cloud backup service sends out less data. Every data backup request is processed before it is executed. The process involves a binary comparison of the data to be backed up with the last full/normal backup available on the Cloud backup server and detects “byte level changes” that needs to be backed up. The changed data is then backed up as an incremental or differential backup set, thus reducing the volume of data that needs to be backed up. Local backups are speeded up with using the digital signatures available in the local cache for comparing versions of files on the local machine.
Data compression and data de-duplication technologies are used to reduce the volume of information transmitted across the network. Data de-duplication technology compares the current backup data set with data existing in the full/normal backup and eliminates all duplicates of information before transmission. If data is received from multiple sources, the same process is initiated to ensure that a piece of information is stored only once in the backup. Compression technology is then used to reduce the volume of data that must travel over the network. These two technologies improve speed of data transfer and save on expensive storage space.
Unlike traditional backup processes, Cloud backup speeds up data transfer by adopting a multi-threaded transport technology. Data streams are broken up into parallel threads and streamed across the network continuously. RESTful WebDAV Data transfer protocols are harnessed to achieve the high data transfer speeds demanded by customers. Traffic may not be throttled at the Cloud backup data center to provision for bandwidth demands of other operations. The high performance scalable infrastructure allows customers scale up or scale down storage space on demand in accordance with the peaks and lows of their business.
Recovery of data from the data center is optimized for fast recovery. 80% of the recovery requests use SSD or RAM memory. The data remains highly available and there is no single point of failure as data is replicated to fault-tolerant, geographically dispersed servers that automatically take over in the event that the primary server fails or is temporarily down for servicing.