While a nice idea, predictably scaling a database across on-premise and the cloud is not an easy task. Many DBaaS offerings appear to provide easy scale, but underneath the covers it involves a tremendous amount of structure that, in the end, will not deliver the performance and scalability needed to meet the growth requirements of successful cloud applications. The database’s architecture plays a key role in how scalable it will be across private datacenters and cloud providers and whether IT can confidently predict potential scale increases with a masterless architecture.
3. How Secure Is It? Security is top of mind for every organization considering hybrid cloud deployments. Some studies show that nearly 70 percent believe moving any part of their database to a cloud increases their chances of unauthorized access, with others pointing to common concerns that include account compromise, cloud malware, excessive data exposure and over-exposed personally identifiable information (PII).
To alleviate these worries, the database being targeted for hybrid cloud should have an enterprise-class security feature set providing the same levels of protection and security management for data regardless of where it is housed. Encryption should be utilized for all data transferred over the wire, between nodes and at rest. Either internal or third-party security (e.g. LDAP, Kerberos, etc.) authentication and access authorization should be utilized across all sites. Lastly, smart auditing functions should be applied so database access can be monitored from both the cloud and on-premise locations. All of these security controls should function uniformly across the hybrid cloud deployment.
Beyond standard security management, there is another consideration becoming more prominent every day -- data sovereignty (sometimes referred to as data residency). Data sovereignty addresses the idea that stored data is subject to the laws of the country in which it is located.
Many of the issues surrounding data sovereignty deal with enforcing privacy regulations and preventing data that is stored in a foreign country from being subpoenaed by the host country’s government. Cloud and hybrid cloud computing have broken down standard traditional geopolitical barriers so, in response, many countries have introduced new compliance requirements that mandate sensitive data be kept within the country in which it originates.
Adhering to data sovereignty security requirements in a hybrid cloud database deployment comes down to having the flexibility to retain required data in a local-only fashion while permitting other data that is freed from such mandates to freely move between clouds that exist in other geographies.
All signs point to the fact that hybrid cloud is here to stay. Because the database is the heart of nearly every application, it’s important to ensure any database being considered for a hybrid cloud deployment is simple to operate in such environments, can scale in a predictable fashion, and ensures solid data security.
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