Data Protection
DRS provides a series of methods and features to ensure data security and integrity during transmission.
Host Security and Data Reliability and Durability
At the underlying layer, DRS uses Elastic Cloud Servers (ECSs) for computing and Elastic Volume Service (EVS) disks for storage. With secure ECSs and reliable EVS disks, the host security, data reliability, and data durability of DRS instances can be effectively ensured.
Instance High Availability
To improve service availability and resilience, DRS provides resumable data transfer and fault recovery. If data in the source database is not corrupted or lost, the DRS instance can resume data transfer from the point at which the transfer was stopped. If the underlying resources of an instance are faulty, data is migrated to a new instance in the AZ, and then the interrupted transfer continues. DRS also provides the cross-AZ HA. If the instance in the primary AZ becomes faulty, services can be switched over to the instance in the standby AZ to continue data replication.
Data Transmission Encryption
To secure data replication, DRS allows you to encrypt data transmission over a public network, VPN, Direct Connect, or VPC.
Permanent Data Deletion
When a DRS instance is deleted, the computing and storage resources of the instance are reclaimed. In addition, all data on the DRS instance is deleted and cannot be restored, including basic instance information, run logs, and data comparison results.
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