Write short notes on Brokered cloud storage access and Storage location and tenancy.

2 years ago
Cloud Computing

Brokered cloud storage access

Cloud Broker is an entity that manages the use, performance and delivery of cloud services, and relationships between cloud providers and cloud consumers.

All the data stored in the cloud. It can be located in the cloud service provider’s system used to transfer data from sent and received. The cloud computing has no physical system that serves this purpose. To protect the cloud storage is the way to isolate data from client direct access. They are two services are created. One service for a broker with full access to storage but no access to the client, and another service for a proxy with no access to storage but access to both the client and broker. These important two services are in the direct data path between the client and data stored in the cloud. Under this system, when a client makes a request for data, here’s what happens:

  1. The request goes to the external service interface of the proxy.
  2. The proxy using internal interface, forwards the request to the broker.
  3. The broker requests the data from the cloud storage system.
  4. The storage system returns the results to the broker.
  5. The broker returns the results to the

The proxy completes the response by sending the data requested to the client.

                                                     

Even if the proxy service is compromised, that service does not have access to the trusted key that is necessary to access the cloud storage. In the multi-key solution, not eliminated all internal service endpoints, but proxy service run at a reduced trust level is eliminated. The creation of storage zones with associated encryption keys can further protect cloud storage from unauthorized access.

                   

Storage zone with encrypted keys

Cloud brokers provide services in three categories:

Aggregation: A cloud broker combines and integrates multiple services into one or more new services.

Arbitrage: This is similar to service aggregation, except that the services being aggregated are not fixed.

Intermediation: The cloud broker give service by improving capability and providing value added services to cloud consumers. The improvement can be managing access to cloud services, identity management, performance reporting, enhanced security, etc.

Benefits of using a cloud broker

Benefits of using a cloud broker for a business or technical purpose include the following:

  • Cloud interoperability - Integration between several cloud
  • Cloud portability - Move application between different cloud
  • Increase business continuity by reducing dependency from one cloud
  • Cost

Storage location and tenancy

Cloud service providers as per their Service Level Agreements, need to contractually store and process data in locations that are predetermined by their contract. It gets the commitment for specific data site storage the cloud vendor is under contract to conform to privacy laws.

Because data stored in the cloud is usually stored from multiple tenants the each vendor has its own unique method for segregating one customer’s data from another. It’s important to understand how the specific service provider maintains data segregation. Cloud storage provider provides privileged access to storage. Most cloud service providers store data in an encrypted form to protect the data used in security mechanism. Hence, data cannot be accessed by the unauthorized user.

It is important to know what impact a disaster or interruption occur on the stored data. Since data are stored across multiples sites, it may not be possible to recover data in a timely manner.

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Bijay Satyal
Oct 23, 2021
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