If one relies solely on marketing materials provided by cloud hosts and resellers, one might be
forgiven for thinking that the cloud is a magical place where nothing breaks
and everything Just Works. Unfortunately, this is not the case. Cloud-based
infrastructure requires just as much backup planning as a traditional
self-hosted architecture—sometimes more, because of the dynamic nature of
the cloud. Fortunately there is a silver lining: along with new challenges,
the cloud provides new features to make backups simpler and reduce
implementation time. For example, ticking a checkbox is figuratively all
that it takes to set up scheduled backups for the RDS service, as shown in Figure 12-1.
Figure 12-1. Built-in cloud backup facility in the AWS Relational Database
Service
Although business types can think of the cloud as a single logical entity, we
must look beyond that high-level presentation to view our cloud as a series
of datacenters spread across multiple regions, and plan our backups
accordingly. To run a highly available service, you would not put all of
your servers in a single datacenter. You should plan backups with the same
consideration in mind.
Furthermore, it is also important to think about off-site backups. When working with AWS, this can mean one of two things: storing backups outside your primary region, or going a step further and storing them entirely ...
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