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SQL and NoSQL In the Cloud

Options of running RDBMSs in the cloud:

  • Install and Manage – in this “traditional” model the developer or sysadmin selects their DBMS, creates instances in their cloud, installs it, and is then responsible for all administration tasks (backups, clustering, snapshots, tuning, and recovering from a disaster. […]
  • Use a Cloud-Managed DBaaS Instance – in this model the cloud provider offers a DBMS service that developers just use. All physical administration tasks (backup, recovery, log management, etc.) are performed by the cloud provider and the developer just needs to worry about structural tuning issues (indices, tables, query optimization, etc). […]
  • Use an External Cloud-Agnostic DBaaS Solution – this is very much like the cloud-based DBaaS, but has a value of cloud-independence – at least in theory. In the long run you might expect to be able to use an independent DBaaS to provide multi-cloud availability and continuous operations in the event of a cloud failure.

I guess these are equivalent to applying Infrastructure-as-a-Service (IaaS), Platform-as-a-Service (PaaS), and Database-as-a-Service (DaaS) (nb: this can be seen as a more specialized PaaS) models to persistency. And the same approach applies to NoSQL databases, as these models are orthogonal the the persistency problem.

RDBMS and NoSQL database in the cloud
cloudbzz.com

Original title and link: SQL and NoSQL In the Cloud (NoSQL databases © myNoSQL)

via: http://www.cloudbzz.com/sql-in-the-cloud/