The IaaS market for cloud computing is rapidly evolving, but it represents the fastest-growing need among Gartner clients. "As each provider has unique offerings, the task of sourcing their services must be handled with care." Most of the vendors included have Service-Level Agreements (SLA) that ensure the cloud will have 99.95% uptime -- some even guarantee up to 99.999%.
Gartner warns that security remains a major issue with cloud computing, with the extent of security measures from each provider varying significantly. While a vendor may provide some base-level of security, in many circumstances -- such as with AWS -- it's up to the customer to select what additional security features they want. The same is generally true with enterprise-class support, which is offered as an option for customers if they choose from many providers, like AWS.
Customers are using the cloud for more complex workloads now compared to a year ago. Gartner recommends using cloud services for purposes such as test and development, hosting cloud-native applications, e-business hosting, enterprise applications, general business applications and batch computing – depending on the provider.