Storage is important design consideration for cloud environment.
To get the overall performance, the addition overall cost will be necessary. Because storage tends to be one of the more costly items.
A private cloud combine the characteristics of public cloud computing, including self-service, resource pooling, elasticity and metered services transferred in a standardized method with the extra control and customization available from dedicated resources.
The main difference between a private and cloud is that a public provides cloud resources to everyone while the private cloud hosts resources for a single organization.
A single organization may have multiple business units and different divisions. In these case, private cloud owns many of the security and isolation information of public cloud.
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