Azure has separate SLA’s for compute and storage. For Cloud Services, we guarantee that when you deploy two or more role instances in different fault and upgrade domains your Internet facing roles will have external connectivity at least 99.95% of the time. Additionally, we will monitor all of your individual role instances and guarantee that 99.9% of the time we will detect within two minutes when a role instance’s process is not running and initiate corrective.
For Storage, we guarantee that at least 99.9% of the time we will successfully process correctly formatted requests that we receive to add, update, read and delete data. We also guarantee that your storage accounts will have connectivity to our Internet gateway.
For CDN, we guarantee that the cached objects will be delivered with 99.9% availability on a monthly basis.
For SQL Database, we will maintain a "Monthly Availability" of 99.9% during a calendar month.
For Service Bus, we guarantee that at least 99.9% of the time Service Bus customers will have connectivity between a customer’s service endpoint and our Internet gateway; when our service fails to establish a connection from the gateway to a customer's service endpoint, then the service is assumed to be unavailable.
For Access Control, we guarantee that at least 99.9% of the time customers will have connectivity between the Access Control endpoints and our Internet gateway.
For Caching, we guarantee at least 99.9% of the time that customers will have connectivity between the Caching endpoints and our Internet gateway. In order to qualify for the SLA credit, customers must deploy at least two instances of their application.
For SQL Reporting we guarantee that at least 99.9% of the time your SQL Reporting instance will be available to upload, execute or delete reports.
Refer to our SLA page for the latest details