A service level agreement (SLA) is a contract between a cloud provider and a user. The SLA describes the provider’s minimum level of service, specified by performance metrics, and the compensation due to the user should the provider fail to deliver this service. In practice, however, this compensation is punitive. It seems designed to punish […]
Cloud providers offer services that are assembled by users into applications. An outage of any single cloud service can render an application unavailable. Importantly, cloud providers guarantee the availability of individual services, not of entire applications. Even if a whole application becomes unresponsive due to a provider outage, compensation is only due for the individual […]
Cloud providers need to deliver the newest capability to stay relevant. Few enterprises will accept working with outdated technology just because it’s consumable as a cloud service. However, existing cloud instances don’t migrate automatically. Similarly to on-premises server infrastructure, users need to refresh their cloud services regularly. Typically, cloud operators prefer product continuity between generations, […]
The cloud model was designed to be simple and nimble. Simple and nimble doesn’t necessarily mean fit for purpose. Over the past decade, new layers of capability have been added to cloud to address its shortcomings. While this has created more options and greater functionality, it has also meant greater complexity in its management. Today, […]
Vendor lock-in is regularly levied as a criticism of cloud services. But the reality of IT is, there has always been lock-in. Even before cloud, enterprises were locked into hardware, operating systems, database platforms, data centers and network providers. Practically, the lock-in challenge with cloud isn’t that moving from one location or platform is not […]