Instance Type

Last updated: 2017-07-17 11:57:23

PDF

Currently, the cloud database provides the following instance types:

  • Master instance: This instance can be purchased directly. It has all the features of cloud database.

  • Master instance (dedicated) (currently not supported): This is the database instance you apply for within the dedicated cluster in Dedicated Database Cluster mode. It has all the features of cloud database.

  • Disaster recovery instance (currently not supported): This instance is deployed remotely (different availability zones) with real-time (async) synchronized data as the master instance, and is usually used for database disaster recovery. It only has partial cloud database features.

  • Temporary instance (currently not supported): This is a temporary instance generated by rollback, and is used for verifying data after rollback. You can switch the verified temporary instance into master instance.

  • Read-only instance (currently not supported): You can only read data from such instance. A read-only instance cannot exist alone, and must belong to a master instance. A read-only instance only acquires data through synchronization with the master instance, and is invisible in the instance list.