AWS offers service credits for non-compliance with the ALS operating time, but it is important to note that they are not applied automatically. To obtain service credits for downtime, AWS customers must assert a right to credit by opening a business in the AWS assistance centre with the words “SLA credit requirement” in the subject line and specifying the details of the dates and times of defaults or failures for which you use secure credits with protocols and resource IDs for the services concerned. If service credits are available for loss, they are normally used as credit on future invoices for the same service. It`s also important to make sure your application infrastructure is observable – if you don`t recognize service outages, you can`t make claims against the ALA, so you can no longer get credits. You need to be able to back up your rights with log files, so make sure you know where to get them! The service credits for S3 Intelligent-Tiering, S3 Standard-Infrequent Access and S3 One Zone-Infrequent Access are: Examples show an expected availability of 99.80% to 99.92% depending on the services concerned. This Amazon Compute Service Level Agreement (“SLA”) is a policy for the use of included services (below) and applies separately to each account that uses the services contained. In the event of a conflict between the terms and conditions of this ALS and the terms of the AWS customer agreement or any other agreement with us regarding your use of our services (the “Contract”), the terms of this ALS apply, but only to the extent of such a conflict. The terms used in this agreement, but which are not defined here, have the meaning of the agreement. In this case, we need to multiply the availability target of each service. The following figure shows an example of a typical web application running on EC2. The service credits available for S3 services (except for those mentioned above) are: AWS Support Response time are separated from each SERVICE-Uptime-SLAs. Response times vary between the 3 AWS support plans available – developers, businesses and businesses.
To facilitate the comparison, I have listed the available response times and associated support costs in the table below.