Aws Service Level Agreements

For all RDS areas hosted in mul­ti­ple avail­abil­ity areas (the “Multi AZ” set­ting is defined as “True”), Ama­zon guar­an­tees 99.5% oper­at­ing time on each monthly billing cycle. This allows up to 3.65 hours of down­time per month. For appli­ca­tions that can­not tol­er­ate down­time, cus­tomers should con­sider host­ing their data­bases in mul­ti­ple regions or using another data­base ser­vice, such as Ama­zon Aurora, which has an ALS with a 99.99% oper­at­ing time. 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! All S3 ser­vices have a guar­an­teed oper­at­ing life of 99.9%, with the excep­tion of the fol­low­ing ser­vices, which are guar­an­teed for 99% oper­at­ing time: In this arti­cle, we study THE SLAs for some of the most com­monly used AWS ser­vices, includ­ing EC2, RDS, EBS, ECS, Far­gate and S3, to give you a taste of the offer, but this is only a guide and should not replace the read­ing of actual SLAs for con­sump­tion. AWS sup­port response times 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. Don‘t expect a 15-minute sup­port response if you only pay for a busi­ness sup­port plan! Although, in my expe­ri­ence, AWS sup­port is both fast and effec­tive. AWS has issued a Ser­vice Level Agree­ment (SLA) for AWS Sys­tems Man­ager, which offers avail­abil­ity guar­an­tees for AWS Sys­tems Manager.

AWS pro­vides all the tools and ser­vices you need to cre­ate a resilient, highly avail­able and highly secure cloud infra­struc­ture, but it‘s up to you as a cus­tomer to ensure that best prac­tices are fol­lowed, that you respect the prin­ci­ples of AWS Well Archi­tected, and that you respect your respon­si­bil­i­ties in the AWS shared respon­si­bil­ity model. : ALS oper­at­ing time varies by type of S3 ser­vice and guar­an­teed oper­at­ing time ranges from 99.9% to 99%. So you need to con­sider some impor­tant things when try­ing to under­stand Amazon‘s ser­vice level agree­ments. The most impor­tant advice I would offer is not to rely on ser­vice level agree­ments to guar­an­tee the oper­at­ing time of your appli­ca­tions. The ALS pro­vides some guid­ance on the hours of oper­a­tion you can expect, but the ser­vice cred­its offered, pro­vided you remem­ber to claim them, will likely be unlikely to com­pen­sate for the down­time your appli­ca­tion is expe­ri­enc­ing, and the likely busi­ness con­se­quences in terms of lost pro­duc­tiv­ity or even lost rev­enue. The ser­vice level agree­ment for Ama­zon EC2 includes sev­eral com­put­ing ser­vices, includ­ing: for CE2 (and related ser­vices), the cred­its avail­able are: Ser­vice cred­its for S3 ser­vices (exclud­ing those men­tioned above) are: less than 99.99%, but more than 99.0% or more.