Avoid the cloud computing SLA trap
September 30, 2015
Grazed from TechTarget. Author: Tom Nolle.
Nearly all cloud computing users think service-level agreements (SLAs) are important for the cloud, but most admit they don’t have a handle on enforcing one. Without proper consideration and tools, even a good SLA will likely fail because you won’t know it’s being violated or why. To make the right cloud computing SLA decisions, divide your cloud into responsibility zones, use analytics to set baseline conditions for application behavior and think of SLA failures as "projects" with their own flow.
Drawing cloud responsibility zones
One of the challenges with a cloud computing SLA is that the experience delivered by a cloud application is the sum of the performance of three or more entities. Figuring out which one might be causing a problem can be a challenge, so the first task in creating an SLA decision framework for the cloud is to develop a simple entity map that shows who provides each portion of cloud service and where their portion transitions into others’…
A typical cloud application starts with user-owned facilities that provide user connection. This can be a mobile device or it may be an entire company network. From this user-supplied piece, the cloud application connects through a WAN, usually the Internet, and from that to the cloud provider’s infrastructure. Some users employ VPN services for cloud access from fixed sites, and others may have more than one cloud provider, so it’s possible that there will be more than the three standard responsibility zones in your own cloud…
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