Service Level for Yandex Managed Databases
This is an old version of the document, which expired on April 13, 2021. The current version is available at: https://yandex.com/legal/cloud_sla_mdb.
This document defines Service Levels for Yandex Managed Service (for PostgreSQL), Yandex Managed Service (for ClickHouse), Yandex Managed Service (for MongoDB), Yandex Managed Service (for Redis™), Yandex Managed Service (for MySQL®), Yandex Managed Service (for SQL Server™) (collectively, “Service”) and is an integral part of Yandex.Cloud Customer Agreement (“Agreement”) and SLA available at: https://yandex.com/legal/cloud_sla/. Capitalized terms used herein but not defined herein shall have the meanings set forth in Agreement and Linked Documents.
Service Level:
|
DB Cluster, read |
99.99% |
|
DB Cluster, write |
99.95% |
Availability of DB Cluster – read:
|
Service Uptime Percentage in Accrual Period |
Compensation, % of Service Fee for Service in Accrual Period |
|
< 99.99%-99.00% |
10.0% |
|
< 99.00%-90.00% |
15.0% |
|
less than 90.00% |
30.0% |
Availability of DB Cluster – write:
|
Service Uptime Percentage in Accrual Period |
Compensation, % of Service Fee for Service in Accrual Period |
|
< 99.95%-99.00% |
10.0% |
|
< 99.00%-90.00% |
15.0% |
|
less than 90.00% |
30.0% |
Unavailability of Yandex Managed Service (for PostgreSQL), Yandex Managed Service for MySQL®, Yandex Managed Service for SQL Server™ shall be defined as two or more DB Hosts placed in different Availability Zones for reading or writing via supported clients.
Unavailability of Yandex Managed Service for ClickHouse shall be defined as follows:
- two or more DB Hosts placed in different Availability Zones for reading or writing via supported clients, and/or
- unavailability of Shard placed in two or more DB Hosts which are located in different Availability Zones for reading or writing via supported clients while using Shard.
Unavailability of Yandex Managed Service for MongoDB shall be defined as follows:
- unavailability DB Cluster which consists of three and more DB Hosts placed in different Availability Zones for reading or writing via supported clients, and/or
- unavailability of Shard placed in three or more DB Hosts which are located in different Availability Zones for reading or writing via supported clients while using Shard.
Unavailability of Yandex Managed Service for Redis™ shall be defined as:
- unavailability DB Cluster which consists of three and more DB Hosts placed in different Availability Zones for reading or writing via supported clients, and/or
- unavailability of Shard placed in three or more DB Hosts which are located in different Availability Zones for reading or writing via supported clients while using Shard.
The list of supported clients for a specific type of DBMS can be found in technical documents of Service posted on Site.
Definitions
Shard — the part of DB Cluster placed in one or several DB Hosts for load balancing.The process of forming a Shard is called sharding.
_______________________
Date of placement: December 15, 2020
Effective date: December 18, 2020
Previous version of the document: https://yandex.com/legal/adv_cloud_sla_mdb/23042019/