Prior Version(s) of Amazon Compute Service Level Agreement– Not Currently In Effect
Last Updated: May 5, 2022
This Amazon Compute Service Level Agreement (this “SLA”) is a policy governing the use of the Included Services (listed below) and applies separately to each account using the Included Services. In the event of a conflict between the terms of this SLA and the terms of the AWS Customer Agreement or other agreement with us governing your use of our Services (the “Agreement”), the terms and conditions of this SLA apply, but only to the extent of such conflict. Capitalized terms used herein but not defined herein shall have the meanings set forth in the Agreement.
Included Services
• Amazon Elastic Compute Cloud (Amazon EC2)*
• Amazon Elastic Block Store (Amazon EBS)
• Amazon Elastic Container Service (Amazon ECS)
• AWS Fargate for Amazon ECS and Amazon EKS
SLAs
AWS makes two SLA commitments for the Included Services: (1) a Region-Level SLA that governs Included Services deployed across multiple AZs or regions, and (2) an Instance-Level SLA that governs Amazon EC2 instances individually.
Region-Level SLA
For Included Services with all running instances or tasks deployed concurrently across two or more AZs in the same region (or at least two regions if there’s only one AZ in a given region), AWS will use commercially reasonable efforts to make each Included Service available for each AWS region with a Monthly Uptime Percentage of at least 99.99%, in each case during any monthly billing cycle (the “Region-Level SLA”). In the event any of the Included Services do not meet the Region-Level SLA, you will be eligible to receive a Service Credit as described below.
Monthly Uptime Percentage |
Service Credit Percentage |
Less than 99.99% but equal to or greater than 99.0% |
10% |
Less than 99.0% but equal to or greater than 95.0% |
30% |
Less than 95.0% |
100% |
Instance-Level SLA
For each individual Amazon EC2 instance (“Single EC2 Instance”), AWS will use commercially reasonable efforts to make the Single EC2 Instance available with an Instance-Level Uptime Percentage of at least 99.5%, in each case during any monthly billing cycle (the “Instance-Level SLA”). In the event any Single EC2 Instance does not meet the Instance-Level SLA, you will be eligible to receive a Service Credit as described below.
Instance-Level Uptime Percentage |
Service Credit Percentage |
Less than 99.5% but equal to or greater than 99.0% |
10% |
Less than 99.0% but equal to or greater than 95.0% |
30% |
Less than 95.0% |
100% |
Note: In addition to the Instance-Level SLA, AWS will not charge you for any Single EC2 Instance that is Unavailable for more than six minutes of a clockhour. This applies automatically and you do not need to request credit for any such hour with more than six minutes of Unavailability.
SLA Credits
Service Credits are calculated as a percentage of the monthly bill (excluding one-time payments such as upfront payments made for Reserved Instances) for the individual Included Service in the affected AWS region that did not meet the Region-Level SLA, or for the Single EC2 Instance in the AWS region that did not meet the Instance-Level SLA, respectively.
We will apply any Service Credits only against future payments for the applicable Included Service otherwise due from you. At our discretion, we may issue the Service Credit to the credit card you used to pay for the billing cycle in which the Unavailability occurred. Service Credits will not entitle you to any refund or other payment from AWS. A Service Credit will be applicable and issued only if the credit amount for the applicable monthly billing cycle is greater than one dollar ($1 USD). Service Credits may not be transferred or applied to any other account.
Credit Request and Payment Procedures
To receive a Service Credit, you must submit a claim by opening a case in the AWS Support Center. You may only submit a claim under either the Region-Level SLA or the Instance-Level SLA, as these claims cannot be combined or stacked for a particular Single EC2 Instance. Your credit request must be received by us by the end of the second billing cycle after which the incident occurred and must include the information specified below for the Region-Level SLA and Instance-Level SLA, respectively.
Region-Level SLA requests must include:
- the words “Amazon Compute SLA Credit Request – Region-Level Claim” in the subject line;
- the dates, times, and affected AWS region of each Unavailability incident that you are claiming;
- the resource IDs for the affected Included Service; and
- your request logs that document the errors and corroborate your claimed outage**.
Instance-Level SLA requests must include:
- the words “Amazon Compute SLA Credit Request – Instance-Level Claim” in the subject line;
- the dates, times, and the affected AWS region and AZ of each Unavailability incident that you are claiming;
- the resource IDs for the affected Single EC2 Instances; and
- your request logs and other data necessary for AWS to validate your claimed outage**.
** Please replace any confidential or sensitive information with asterisks.
If a claim under the Region-Level or Instance-Level SLA is confirmed by us as valid, we will issue you a Service Credit within one billing cycle following the month in which your request is confirmed by us.
Your failure to provide the requested and other information as required above will disqualify you from receiving a Service Credit. Unless otherwise provided in the Agreement, this SLA sets forth your sole and exclusive remedies, and AWS’ sole and exclusive obligations, for any unavailability, non-performance, or other failure by us to provide the Included Services.
Amazon Compute SLA Exclusions
The Region-Level SLA and Instance-Level SLA, respectively, do not apply to any unavailability, suspension or termination of an Included Service, or any other Included Service performance issues, directly or indirectly: (i) caused by factors outside of our reasonable control, including any force majeure event or Internet access or related problems beyond the demarcation point of the applicable Included Service; (ii) that result from any actions or inactions of you, including failure to acknowledge a recovery volume or respond to resource health concerns; (iii) that result from your equipment, software or other technology; or (iv) arising from our suspension or termination of your right to use the applicable Included Service in accordance with the Agreement (collectively, the “Amazon Compute SLA Exclusions”). If availability is impacted by factors other than those used in our Monthly Uptime Percentage calculation, then we may issue a Service Credit considering such factors at our discretion.
SLA Definitions
- “Availability Zone” and “AZ” mean an isolated location within an AWS region identified by a letter identifier following the AWS region code (e.g., us-west-1a).
- “Monthly Uptime Percentage” is calculated by subtracting from 100% the percentage of minutes during the month in which any of the Included Services, as applicable, was in the state of Unavailability.
- “Instance-Level Uptime Percentage” is calculated by subtracting from 100% the percentage of minutes during the month in which a Single EC2 Instance was in the state of Unavailability.
- A “Service Credit” is a dollar credit, calculated as set forth above, that we may credit back to an eligible account.
- “Unavailable” and “Unavailability” mean:
- For the Instance-Level SLA, your Single EC2 Instance has no external connectivity.
- For the Region-Level SLA applicable to Amazon EC2 (other than Single EC2 Instances), Amazon ECS, or AWS Fargate, when all of your running instances or running tasks, as applicable, deployed in two or more AZs in the same AWS region (or, if there is only one AZ in the AWS region, that AZ and an AZ in another AWS region) concurrently have no external connectivity.
- For the Region-Level SLA applicable to Amazon EBS, when all of your attached volumes deployed in two or more AZs in the same AWS region (or, if there is only one AZ in the AWS region, that AZ and an AZ in another AWS region) perform zero read write IO, with pending IO in the queue.
Last Updated: July 22, 2020
This Amazon Compute Service Level Agreement (this “SLA”) is a policy governing the use of the Included Services (listed below) and applies separately to each account using the Included Services. In the event of a conflict between the terms of this SLA and the terms of the AWS Customer Agreement or other agreement with us governing your use of our Services (the “Agreement”), the terms and conditions of this SLA apply, but only to the extent of such conflict. Capitalized terms used herein but not defined herein shall have the meanings set forth in the Agreement.
Included Services
• Amazon Elastic Compute Cloud (Amazon EC2)*
• Amazon Elastic Block Store (Amazon EBS)
• Amazon Elastic Container Service (Amazon ECS)
• AWS Fargate for Amazon ECS and Amazon EKS
General Service Commitment
AWS will use commercially reasonable efforts to make the Included Services each available for each AWS region with a Monthly Uptime Percentage of at least 99.99%, in each case during any monthly billing cycle (the “Service Commitment”). In the event any of the Included Services do not meet the Service Commitment, you will be eligible to receive a Service Credit as described below.
Service Credits
Service Credits are calculated as a percentage of the total charges paid by you (excluding one-time payments such as upfront payments made for Reserved Instances) for the individual Included Service in the affected AWS region for the monthly billing cycle in which the Unavailability occurred in accordance with the schedule below.
Monthly Uptime Percentage |
Service Credit Percentage |
Less than 99.99% but equal to or greater than 99.0% |
10% |
Less than 99.0% but equal to or greater than 95.0% |
30% |
Less than 95.0% |
100% |
We will apply any Service Credits only against future payments for the applicable Included Service otherwise due from you. At our discretion, we may issue the Service Credit to the credit card you used to pay for the billing cycle in which the Unavailability occurred. Service Credits will not entitle you to any refund or other payment from AWS. A Service Credit will be applicable and issued only if the credit amount for the applicable monthly billing cycle is greater than one dollar ($1 USD). Service Credits may not be transferred or applied to any other account.
Credit Request and Payment Procedures
To receive a Service Credit, you must submit a claim by opening a case in the AWS Support Center. To be eligible, the credit request must be received by us by the end of the second billing cycle after which the incident occurred and must include:
1. the words “SLA Credit Request” in the subject line;
2. the dates, times, and affected AWS region of each Unavailability incident that you are claiming;
3. the resource IDs for the affected Included Service ; and
4. your request logs that document the errors and corroborate your claimed outage (any confidential or sensitive information in these logs should be removed or replaced with asterisks).
If the Monthly Uptime Percentage of such request is confirmed by us and is less than the Service Commitment, then we will issue the Service Credit to you within one billing cycle following the month in which your request is confirmed by us. Your failure to provide the request and other information as required above will disqualify you from receiving a Service Credit. Unless otherwise provided in the Agreement, this SLA sets forth your sole and exclusive remedies, and AWS’ sole and exclusive obligations, for any unavailability, non-performance, or other failure by us to provide the Included Services.
Single EC2 Instances
AWS will use commercially reasonable efforts to ensure that each individual Amazon EC2 instance (“Single EC2 Instance”) has an Hourly Uptime Percentage of at least 90% of the time in which that Single EC2 Instance is deployed during each clock hour (the “Hourly Commitment”). In the event any Single EC2 Instance does not meet the Hourly Commitment, you will not be charged for that instance hour of Single EC2 Instance usage.
Amazon Compute SLA Exclusions
The Service Commitment and Hourly Commitment do not apply to any unavailability, suspension or termination an Included Service, or any other Included Service performance issues: (i) caused by factors outside of our reasonable control, including any force majeure event or Internet access or related problems beyond the demarcation point of the applicable Included Service; (ii) that result from any actions or inactions of you or any third party, including failure to acknowledge a recovery volume; (iii) that result from your equipment, software or other technology and/or third party equipment, software or other technology (other than third party equipment within our direct control); or (iv) arising from our suspension or termination of your right to use the applicable Included Service in accordance with the Agreement (collectively, the “Amazon Compute SLA Exclusions”). If availability is impacted by factors other than those used in our Monthly Uptime Percentage calculation, then we may issue a Service Credit considering such factors at our discretion.
Definitions
• “Availability Zone” and “AZ” mean an isolated location within an AWS region identified by a letter identifier following the AWS region code (e.g., us-west-1a).
• “Hourly Uptime Percentage” is calculated by subtracting from 100% the percentage of deployed minutes during any clock hour in which a Single EC2 Instance was in a state of Unavailability. Hourly Uptime Percentage measurements exclude Unavailability resulting directly or indirectly from any Amazon Compute SLA Exclusion
• “Monthly Uptime Percentage” is calculated by subtracting from 100% the percentage of minutes during the month in which any of the Included Services, as applicable, was in the state of Unavailability. Monthly Uptime Percentage measurements exclude Unavailability resulting directly or indirectly from any Amazon Compute SLA Exclusion.
• A “Service Credit” is a dollar credit, calculated as set forth above, that we may credit back to an eligible account.
• “Unavailable” and “Unavailability” mean:
Last Updated: March 19, 2019
This Amazon Compute Service Level Agreement (this “SLA”) is a policy governing the use of the Included Services (listed below) and applies separately to each account using the Included Services. In the event of a conflict between the terms of this SLA and the terms of the AWS Customer Agreement or other agreement with us governing your use of our Services (the “Agreement”), the terms and conditions of this SLA apply, but only to the extent of such conflict. Capitalized terms used herein but not defined herein shall have the meanings set forth in the Agreement.
Included Products and Services
• Amazon Elastic Compute Cloud (Amazon EC2)*
• Amazon Elastic Block Store (Amazon EBS)
• Amazon Elastic Container Service (Amazon ECS)
• Amazon Fargate for Amazon ECS (Amazon Fargate)
*For purposes of this SLA, Amazon EC2 includes any Amazon Elastic Graphics, Amazon Elastic Inference, and Elastic IP Address resources purchased with the relevant Amazon EC2 instance(s).
General Service Commitment
AWS will use commercially reasonable efforts to make the Included Services each available for each AWS region with a Monthly Uptime Percentage of at least 99.99%, in each case during any monthly billing cycle (the “Service Commitment”). In the event any of the Included Services do not meet the Service Commitment, you will be eligible to receive a Service Credit as described below.
Service Credits
Service Credits are calculated as a percentage of the total charges paid by you (excluding one-time payments such as upfront payments made for Reserved Instances) for the individual Included Service in the affected AWS region for the monthly billing cycle in which the Unavailability occurred in accordance with the schedule below.
Monthly Uptime Percentage |
Service Credit Percentage |
Less than 99.99% but equal to or greater than 99.0% |
10% |
Less than 99.0% but equal to or greater than 95.0% | 30% |
Less than 95.0% | 100% |
We will apply any Service Credits only against future payments for the applicable Included Service otherwise due from you. At our discretion, we may issue the Service Credit to the credit card you used to pay for the billing cycle in which the Unavailability occurred. Service Credits will not entitle you to any refund or other payment from AWS. A Service Credit will be applicable and issued only if the credit amount for the applicable monthly billing cycle is greater than one dollar ($1 USD). Service Credits may not be transferred or applied to any other account.
Credit Request and Payment Procedures
To receive a Service Credit, you must submit a claim by opening a case in the AWS Support Center. To be eligible, the credit request must be received by us by the end of the second billing cycle after which the incident occurred and must include:
- the words “SLA Credit Request” in the subject line;
- the dates, times, and affected AWS region of each Unavailability incident that you are claiming;
- the resource IDs for the affected Included Service ; and
- your request logs that document the errors and corroborate your claimed outage (any confidential or sensitive information in these logs should be removed or replaced with asterisks).
If the Monthly Uptime Percentage of such request is confirmed by us and is less than the Service Commitment, then we will issue the Service Credit to you within one billing cycle following the month in which your request is confirmed by us. Your failure to provide the request and other information as required above will disqualify you from receiving a Service Credit. Unless otherwise provided in the Agreement, this SLA sets forth your sole and exclusive remedies, and AWS’ sole and exclusive obligations, for any unavailability, non-performance, or other failure by us to provide the Included Services.
Single EC2 Instances
AWS will use commercially reasonable efforts to ensure that each individual Amazon EC2 instance (“Single EC2 Instance”) has an Hourly Uptime Percentage of at least 90% of the time in which that Single EC2 Instance is deployed during each clock hour (the “Hourly Commitment”). In the event any Single EC2 Instance does not meet the Hourly Commitment, you will not be charged for that instance hour of Single EC2 Instance usage.
Amazon Compute SLA Exclusions
The Service Commitment and Hourly Commitment do not apply to any unavailability, suspension or termination an Included Service, or any other Included Service performance issues: (i) caused by factors outside of our reasonable control, including any force majeure event or Internet access or related problems beyond the demarcation point of the applicable Included Service; (ii) that result from any actions or inactions of you or any third party, including failure to acknowledge a recovery volume; (iii) that result from your equipment, software or other technology and/or third party equipment, software or other technology (other than third party equipment within our direct control); or (iv) arising from our suspension or termination of your right to use the applicable Included Service in accordance with the Agreement (collectively, the “Amazon Compute SLA Exclusions”). If availability is impacted by factors other than those used in our Monthly Uptime Percentage calculation, then we may issue a Service Credit considering such factors at our discretion.
Definitions
- “Availability Zone” and “AZ” mean an isolated location within an AWS region identified by a letter identifier following the AWS region code (e.g., us-west-1a).
- “Hourly Uptime Percentage” is calculated by subtracting from 100% the percentage of deployed minutes during any clock hour in which a Single EC2 Instance was in a state of Unavailability. Hourly Uptime Percentage measurements exclude Unavailability resulting directly or indirectly from any Amazon Compute SLA Exclusion
- “Monthly Uptime Percentage” is calculated by subtracting from 100% the percentage of minutes during the month in which any of the Included Services, as applicable, was in the state of Unavailability. Monthly Uptime Percentage measurements exclude Unavailability resulting directly or indirectly from any Amazon Compute SLA Exclusion.
- A “Service Credit” is a dollar credit, calculated as set forth above, that we may credit back to an eligible account.
- “Unavailable” and “Unavailability” mean:
- For Single EC2 Instances, when your Single EC2 Instance has no external connectivity.
- For Amazon EC2 (other than Single EC2 Instances), Amazon ECS, or Amazon Fargate, when all of your running instances or running tasks, as applicable, deployed in two or more AZs in the same AWS region (or, if there is only one AZ in the AWS region, that AZ and an AZ in another AWS region) concurrently have no external connectivity.
- For Amazon EBS, when all of your attached volumes deployed in two or more AZs in the same AWS region (or, if there is only one AZ in the AWS region, that AZ and an AZ in another AWS region) perform zero read write IO, with pending IO in the queue.
Last Updated February 12, 2018
This Amazon Compute Service Level Agreement (this “SLA”) is a policy governing the use of the Included Products and Services (listed below) by you or the entity you represent (“you”) under the terms of the AWS Customer Agreement (the “AWS Agreement”) between Amazon Web Services, Inc. and its affiliates (“AWS”, “us” or “we”) and you. This SLA applies separately to each account using the Included Products and Services. Unless otherwise provided herein, this SLA is subject to the terms of the AWS Agreement and capitalized terms will have the meaning specified in the AWS Agreement. We reserve the right to change the terms of this SLA in accordance with the AWS Agreement.
Included Products and Services
• Amazon Elastic Compute Cloud (Amazon EC2)
• Amazon Elastic Block Store (Amazon EBS)
• Amazon Elastic Container Service (Amazon ECS)
• Amazon Fargate for Amazon ECS (Amazon Fargate)
Service Commitment
AWS will use commercially reasonable efforts to make the Included Products and Services each available with a Monthly Uptime Percentage (defined below) of at least 99.99%, in each case during any monthly billing cycle (the “Service Commitment”). In the event any of the Included Products and Services do not meet the Service Commitment, you will be eligible to receive a Service Credit as described below.
Definitions
- “Monthly Uptime Percentage” is calculated by subtracting from 100% the percentage of minutes during the month in which any of the Included Products and Services, as applicable, was in the state of “Region Unavailable.” Monthly Uptime Percentage measurements exclude downtime resulting directly or indirectly from any Amazon Compute Services SLA Exclusion (defined below).
- “Availability Zone” and “AZ” mean an isolated location within a region identified by a letter identifier following the region code (e.g., us-west-1a).
- “Region Unavailable” and “Region Unavailability” mean:
- For Regions with only one AZ, when that AZ and one AZ in any other Region, in which you are running an instance or task (one or more containers), as applicable, are concurrently “Unavailable” to you.
- For all other Regions, when more than one AZ within the same Region, in which you are running an instance or task (one or more containers), as applicable, are concurrently “Unavailable” to you.
- “Unavailable” and “Unavailability” mean:
- For Amazon EC2, Amazon ECS, or Amazon Fargate, when all of your running instances or running tasks, as applicable, have no external connectivity.
- For Amazon EBS, when all of your attached volumes perform zero read write IO, with pending IO in the queue.
- A “Service Credit” is a dollar credit, calculated as set forth below, that we may credit back to an eligible account.
Service Commitments and Service Credits
Service Credits are calculated as a percentage of the total charges paid by you (excluding one-time payments such as upfront payments made for Reserved Instances) for any of the Included Products and Services (whichever was Unavailable, or all if all were Unavailable) in the Region affected for the monthly billing cycle in which the Region Unavailability occurred in accordance with the schedule below.
Monthly Uptime Percentage |
Service Credit Percentage |
Less than 99.99% but equal to or greater than 99.0% |
10% |
Less than 99.0% |
30% |
We will apply any Service Credits only against future payments for the Included Products and Services otherwise due from you. At our discretion, we may issue the Service Credit to the credit card you used to pay for the billing cycle in which the Unavailability occurred. Service Credits will not entitle you to any refund or other payment from AWS. A Service Credit will be applicable and issued only if the credit amount for the applicable monthly billing cycle is greater than one dollar ($1 USD). Service Credits may not be transferred or applied to any other account. Unless otherwise provided in the AWS Agreement, your sole and exclusive remedy for any unavailability, non-performance, or other failure by us to provide the Included Products and Services is the receipt of a Service Credit (if eligible) in accordance with the terms of this SLA.
Credit Request and Payment Procedures
To receive a Service Credit, you must submit a claim by opening a case in the AWS Support Center. To be eligible, the credit request must be received by us by the end of the second billing cycle after which the incident occurred and must include:
1. the words “SLA Credit Request” in the subject line;
2. the dates and times of each Unavailability incident that you are claiming;
3. the affected instance IDs, volume IDs, or task ARNs; and
4. your request logs that document the errors and corroborate your claimed outage (any confidential or sensitive information in these logs should be removed or replaced with asterisks).
If the Monthly Uptime Percentage of such request is confirmed by us and is less than the Service Commitment, then we will issue the Service Credit to you within one billing cycle following the month in which your request is confirmed by us. Your failure to provide the request and other information as required above will disqualify you from receiving a Service Credit.
Amazon Compute SLA Exclusions
The Service Commitment does not apply to any unavailability, suspension or termination of the Included Products and Services , or any other performance issues affecting the Included Products and Services: (i) that result from a suspension described in Section 6.1 of the AWS Agreement; (ii) caused by factors outside of our reasonable control, including any force majeure event or Internet access or related problems beyond the demarcation point of the Included Products and Services; (iii) that result from any actions or inactions of you or any third party, including failure to acknowledge a recovery volume; (iv) that result from your equipment, software or other technology and/or third party equipment, software or other technology (other than third party equipment within our direct control); (v) that result from failures of individual instances or volumes not attributable to Region Unavailability; (vi) that result from any maintenance as provided for pursuant to the AWS Agreement; or (vii) arising from our suspension and termination of your right to use the Included Products and Services in accordance with the AWS Agreement (collectively, the “Amazon Compute SLA Exclusions”). If availability is impacted by factors other than those used in our Monthly Uptime Percentage calculation, then we may issue a Service Credit considering such factors at our discretion.
Last Updated: December 1, 2017
This Amazon Compute Service Level Agreement (this “SLA”) is a policy governing the use of the Included Products and Services (listed below) by you or the entity you represent (“you”) under the terms of the AWS Customer Agreement (the “AWS Agreement”) between Amazon Web Services, Inc. and its affiliates (“AWS”, “us” or “we”) and you. This SLA applies separately to each account using the Included Products and Services. Unless otherwise provided herein, this SLA is subject to the terms of the AWS Agreement and capitalized terms will have the meaning specified in the AWS Agreement. We reserve the right to change the terms of this SLA in accordance with the AWS Agreement.
Included Products and Services
• Amazon Elastic Compute Cloud (Amazon EC2)
• Amazon Elastic Block Store (Amazon EBS)
• Amazon Elastic Container Service (Amazon ECS)
• AWS Fargate for Amazon ECS (AWS Fargate)
Service Commitment
AWS will use commercially reasonable efforts to make the Included Products and Services each available with a Monthly Uptime Percentage (defined below) of at least 99.99%, in each case during any monthly billing cycle (the “Service Commitment”). In the event any of the Included Products and Services do not meet the Service Commitment, you will be eligible to receive a Service Credit as described below.
Definitions
• "Monthly Uptime Percentage” is calculated by subtracting from 100% the percentage of minutes during the month in which any of the Included Products and Services, as applicable, was in the state of “Region Unavailable.” Monthly Uptime Percentage measurements exclude downtime resulting directly or indirectly from any Amazon Compute Services SLA Exclusion (defined below).
• “Region Unavailable” and “Region Unavailability” mean that more than one Availability Zone in which you are running an instance or task (one or more containers), as applicable, within the same Region, is “Unavailable” to you.
• “Unavailable” and “Unavailability” mean:
o For Amazon EC2, Amazon ECS, or AWS Fargate, when all of your running instances or running tasks, as applicable, have no external connectivity.
o For Amazon EBS, when all of your attached volumes perform zero read write IO, with pending IO in the queue.
• A “Service Credit” is a dollar credit, calculated as set forth below, that we may credit back to an eligible account.
Service Commitments and Service Credits
Service Credits are calculated as a percentage of the total charges paid by you (excluding one-time payments such as upfront payments made for Reserved Instances) for any of the Included Products and Services (whichever was Unavailable, or all if all were Unavailable) in the Region affected for the monthly billing cycle in which the Region Unavailability occurred in accordance with the schedule below.
Monthly Uptime Percentage |
Service Credit Percentage |
Less than 99.99% but equal to or greater than 99.0% |
10% |
Less than 99.0% |
30% |
We will apply any Service Credits only against future payments for the Included Products and Services otherwise due from you. At our discretion, we may issue the Service Credit to the credit card you used to pay for the billing cycle in which the Unavailability occurred. Service Credits will not entitle you to any refund or other payment from AWS. A Service Credit will be applicable and issued only if the credit amount for the applicable monthly billing cycle is greater than one dollar ($1 USD). Service Credits may not be transferred or applied to any other account. Unless otherwise provided in the AWS Agreement, your sole and exclusive remedy for any unavailability, non-performance, or other failure by us to provide the Included Products and Services is the receipt of a Service Credit (if eligible) in accordance with the terms of this SLA.
Credit Request and Payment Procedures
To receive a Service Credit, you must submit a claim by opening a case in the AWS Support Center. To be eligible, the credit request must be received by us by the end of the second billing cycle after which the incident occurred and must include:
1. the words “SLA Credit Request” in the subject line;
2. the dates and times of each Unavailability incident that you are claiming;
3. the affected instance IDs, volume IDs, or task ARNs; and
4. your request logs that document the errors and corroborate your claimed outage (any confidential or sensitive information in these logs should be removed or replaced with asterisks).
If the Monthly Uptime Percentage of such request is confirmed by us and is less than the Service Commitment, then we will issue the Service Credit to you within one billing cycle following the month in which your request is confirmed by us. Your failure to provide the request and other information as required above will disqualify you from receiving a Service Credit.
Amazon Compute SLA Exclusions
The Service Commitment does not apply to any unavailability, suspension or termination of the Included Products and Services , or any other performance issues affecting the Included Products and Services: (i) that result from a suspension described in Section 6.1 of the AWS Agreement; (ii) caused by factors outside of our reasonable control, including any force majeure event or Internet access or related problems beyond the demarcation point of the Included Products and Services; (iii) that result from any actions or inactions of you or any third party, including failure to acknowledge a recovery volume; (iv) that result from your equipment, software or other technology and/or third party equipment, software or other technology (other than third party equipment within our direct control); (v) that result from failures of individual instances or volumes not attributable to Region Unavailability; (vi) that result from any maintenance as provided for pursuant to the AWS Agreement; or (vii) arising from our suspension and termination of your right to use the Included Products and Services in accordance with the AWS Agreement (collectively, the “Amazon Compute SLA Exclusions”). If availability is impacted by factors other than those used in our Monthly Uptime Percentage calculation, then we may issue a Service Credit considering such factors at our discretion.
Last Updated November 15, 2017
This Amazon EC2 Service Level Agreement (“SLA”) is a policy governing the use of Amazon Elastic Compute Cloud (“Amazon EC2”) and Amazon Elastic Block Store (“Amazon EBS”) under the terms of the Amazon Web Services Customer Agreement (the “AWS Agreement”) between Amazon Web Services, Inc. and its affiliates (“AWS”, “us” or “we”) and users of AWS’ services (“you”). This SLA applies separately to each account using Amazon EC2 or Amazon EBS. Unless otherwise provided herein, this SLA is subject to the terms of the AWS Agreement and capitalized terms will have the meaning specified in the AWS Agreement. We reserve the right to change the terms of this SLA in accordance with the AWS Agreement.
Service Commitment
AWS will use commercially reasonable efforts to make Amazon EC2 and Amazon EBS each available with a Monthly Uptime Percentage (defined below) of at least 99.99%, in each case during any monthly billing cycle (the “Service Commitment”). In the event Amazon EC2 or Amazon EBS does not meet the Service Commitment, you will be eligible to receive a Service Credit as described below.
Definitions
• “Monthly Uptime Percentage” is calculated by subtracting from 100% the percentage of minutes during the month in which Amazon EC2 or Amazon EBS, as applicable, was in the state of “Region Unavailable.” Monthly Uptime Percentage measurements exclude downtime resulting directly or indirectly from any Amazon EC2 SLA Exclusion (defined below).
• “Region Unavailable” and “Region Unavailability” mean that more than one Availability Zone in which you are running an instance, within the same Region, is “Unavailable” to you.
• “Unavailable” and “Unavailability” mean:
o For Amazon EC2, when all of your running instances have no external connectivity.
o For Amazon EBS, when all of your attached volumes perform zero read write IO, with pending IO in the queue.
• A “Service Credit” is a dollar credit, calculated as set forth below, that we may credit back to an eligible account.
Service Commitments and Service Credits
Service Credits are calculated as a percentage of the total charges paid by you (excluding one-time payments such as upfront payments made for Reserved Instances) for either Amazon EC2 or Amazon EBS (whichever was Unavailable, or both if both were Unavailable) in the Region affected for the monthly billing cycle in which the Region Unavailability occurred in accordance with the schedule below.
Monthly Uptime Percentage |
Service Credit Percentage |
Less than 99.99% but equal to or greater than 99.0% |
10% |
Less than 99.0% |
30% |
We will apply any Service Credits only against future Amazon EC2 or Amazon EBS payments otherwise due from you. At our discretion, we may issue the Service Credit to the credit card you used to pay for the billing cycle in which the Unavailability occurred. Service Credits will not entitle you to any refund or other payment from AWS. A Service Credit will be applicable and issued only if the credit amount for the applicable monthly billing cycle is greater than one dollar ($1 USD). Service Credits may not be transferred or applied to any other account. Unless otherwise provided in the AWS Agreement, your sole and exclusive remedy for any unavailability, non-performance, or other failure by us to provide Amazon EC2 or Amazon EBS is the receipt of a Service Credit (if eligible) in accordance with the terms of this SLA.
Credit Request and Payment Procedures
To receive a Service Credit, you must submit a claim by opening a case in the AWS Support Center. To be eligible, the credit request must be received by us by the end of the second billing cycle after which the incident occurred and must include:
1. the words “SLA Credit Request” in the subject line;
2. the dates and times of each Unavailability incident that you are claiming;
3. the affected EC2 instance IDs or the affected EBS volume IDs; and
4. your request logs that document the errors and corroborate your claimed outage (any confidential or sensitive information in these logs should be removed or replaced with asterisks).
If the Monthly Uptime Percentage of such request is confirmed by us and is less than the Service Commitment, then we will issue the Service Credit to you within one billing cycle following the month in which your request is confirmed by us. Your failure to provide the request and other information as required above will disqualify you from receiving a Service Credit.
Amazon EC2 SLA Exclusions
The Service Commitment does not apply to any unavailability, suspension or termination of Amazon EC2 or Amazon EBS, or any other Amazon EC2 or Amazon EBS performance issues: (i) that result from a suspension described in Section 6.1 of the AWS Agreement; (ii) caused by factors outside of our reasonable control, including any force majeure event or Internet access or related problems beyond the demarcation point of Amazon EC2 or Amazon EBS; (iii) that result from any actions or inactions of you or any third party, including failure to acknowledge a recovery volume; (iv) that result from your equipment, software or other technology and/or third party equipment, software or other technology (other than third party equipment within our direct control); (v) that result from failures of individual instances or volumes not attributable to Region Unavailability; (vi) that result from any maintenance as provided for pursuant to the AWS Agreement; or (vii) arising from our suspension and termination of your right to use Amazon EC2 or Amazon EBS in accordance with the AWS Agreement (collectively, the “Amazon EC2 SLA Exclusions”). If availability is impacted by factors other than those used in our Monthly Uptime Percentage calculation, then we may issue a Service Credit considering such factors at our discretion.
Last updated June 1, 2013
This Amazon EC2 Service Level Agreement (“SLA”) is a policy governing the use of Amazon Elastic Compute Cloud (“Amazon EC2”) and Amazon Elastic Block Store (“Amazon EBS”) under the terms of the Amazon Web Services Customer Agreement (the “AWS Agreement”) between Amazon Web Services, Inc. and its affiliates (“AWS”, “us” or “we”) and users of AWS’ services (“you”). This SLA applies separately to each account using Amazon EC2 or Amazon EBS. Unless otherwise provided herein, this SLA is subject to the terms of the AWS Agreement and capitalized terms will have the meaning specified in the AWS Agreement. We reserve the right to change the terms of this SLA in accordance with the AWS Agreement.
Service Commitment
AWS will use commercially reasonable efforts to make Amazon EC2 and Amazon EBS each available with a Monthly Uptime Percentage (defined below) of at least 99.95%, in each case during any monthly billing cycle (the “Service Commitment”). In the event Amazon EC2 or Amazon EBS does not meet the Service Commitment, you will be eligible to receive a Service Credit as described below.
Definitions
• “Monthly Uptime Percentage” is calculated by subtracting from 100% the percentage of minutes during the month in which Amazon EC2 or Amazon EBS, as applicable, was in the state of “Region Unavailable.” Monthly Uptime Percentage measurements exclude downtime resulting directly or indirectly from any Amazon EC2 SLA Exclusion (defined below).
• “Region Unavailable” and “Region Unavailability” mean that more than one Availability Zone in which you are running an instance, within the same Region, is “Unavailable” to you.
• “Unavailable” and “Unavailability” mean:
o For Amazon EC2, when all of your running instances have no external connectivity
o For Amazon EBS, when all of your attached volumes perform zero read write IO, with pending IO in the queue.
• A “Service Credit” is a dollar credit, calculated as set forth below, that we may credit back to an eligible account.
Service Commitments and Service Credits
Service Credits are calculated as a percentage of the total charges paid by you (excluding one-time payments such as upfront payments made for Reserved Instances) for either Amazon EC2 or Amazon EBS (whichever was Unavailable, or both if both were Unavailable) in the Region affected for the monthly billing cycle in which the Region Unavailability occurred in accordance with the schedule below.
Monthly Uptime Percentage |
Service Credit Percentage |
Less than 99.95% but equal to or greater than 99.0% |
10% |
Less than 99.0% |
30% |
We will apply any Service Credits only against future Amazon EC2 or Amazon EBS payments otherwise due from you. At our discretion, we may issue the Service Credit to the credit card you used to pay for the billing cycle in which the Unavailability occurred. Service Credits will not entitle you to any refund or other payment from AWS. A Service Credit will be applicable and issued only if the credit amount for the applicable monthly billing cycle is greater than one dollar ($1 USD). Service Credits may not be transferred or applied to any other account. Unless otherwise provided in the AWS Agreement, your sole and exclusive remedy for any unavailability, non-performance, or other failure by us to provide Amazon EC2 or Amazon EBS is the receipt of a Service Credit (if eligible) in accordance with the terms of this SLA.
Credit Request and Payment Procedures
To receive a Service Credit, you must submit a claim by opening a case in the AWS Support Center. To be eligible, the credit request must be received by us by the end of the second billing cycle after which the incident occurred and must include:
1. the words “SLA Credit Request” in the subject line;
2. the dates and times of each Unavailability incident that you are claiming;
3. the affected EC2 instance IDs or the affected EBS volume IDs; and
4. your request logs that document the errors and corroborate your claimed outage (any confidential or sensitive information in these logs should be removed or replaced with asterisks).
If the Monthly Uptime Percentage of such request is confirmed by us and is less than the Service Commitment, then we will issue the Service Credit to you within one billing cycle following the month in which your request is confirmed by us. Your failure to provide the request and other information as required above will disqualify you from receiving a Service Credit.
Amazon EC2 SLA Exclusions
The Service Commitment does not apply to any unavailability, suspension or termination of Amazon EC2 or Amazon EBS, or any other Amazon EC2 or Amazon EBS performance issues: (i) that result from a suspension described in Section 6.1 of the AWS Agreement; (ii) caused by factors outside of our reasonable control, including any force majeure event or Internet access or related problems beyond the demarcation point of Amazon EC2 or Amazon EBS; (iii) that result from any actions or inactions of you or any third party, including failure to acknowledge a recovery volume; (iv) that result from your equipment, software or other technology and/or third party equipment, software or other technology (other than third party equipment within our direct control); (v) that result from failures of individual instances or volumes not attributable to Region Unavailability; (vi) that result from any maintenance as provided for pursuant to the AWS Agreement; or (vii) arising from our suspension and termination of your right to use Amazon EC2 or Amazon EBS in accordance with the AWS Agreement (collectively, the “Amazon EC2 SLA Exclusions”). If availability is impacted by factors other than those used in our Monthly Uptime Percentage calculation, then we may issue a Service Credit considering such factors at our discretion.