Cloud Storage
Cloud storage is a model of computer data storage in which the digital data is stored in logical pools, said to be on “the cloud”. The physical storage spans multiple servers (sometimes in multiple locations), and the physical environment is typically owned and managed by a hosting company. These cloud storage providers are responsible for keeping the data available and accessible, and the physical environment protected and running.
Cloud Storage Benefits
Usability and accessibility
Security
cost-efficient
Convenient
Multiple users
Cloud Storage Requirements
Durability
Data should be redundantly stored, ideally across multiple facilities and multiple devices in each facility. Natural disasters, human error, or mechanical faults should not result in data loss.
Availability
All data should be available when needed but there is a difference between production data and archives. The ideal cloud storage will deliver the right balance of retrieval times and cost.
3.Security
All data is ideally encrypted, both at rest and in transit. Permissions and access controls should work just as well in the cloud as they do for on-premises storage.
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