Data synchronization
You can synchronize data from Hadoop Distributed File System (HDFS) and Object Storage Service (OSS) to a destination in the Cloud Backup console. This topic describes the steps required for this scenario.
The procedure for data synchronization in the Cloud Backup console is as follows:
Before you synchronize data from HDFS, on-premises NAS, S3-compatible storage, CPFS, OSS, or OSS protocol-compatible storage, you must install a client on the server where the data source is located. The client is used to establish data and management connections with Cloud Backup.
Activating Cloud Backup is free, and Cloud Backup does not charge any fees for this feature. Alibaba Cloud NAS charges for reading files over the Internet and for file storage. Alibaba Cloud OSS also charges for file storage. For more information about billing, see Billing overview of Alibaba Cloud NAS and Billing overview of Alibaba Cloud OSS.
Before you synchronize data from HDFS, on-premises NAS, S3-compatible storage, CPFS, OSS, or OSS protocol-compatible storage, you must install the client on the server that runs the sync task. The server must be able to communicate with the data source node over the network. The client is used to establish communication and management services with Cloud Backup.
In the Cloud Backup console, add HDFS, on-premises NAS, S3-compatible storage, CPFS, OSS, or OSS protocol-compatible storage as a data source.
Create a data sync task. Cloud Backup starts the task and continuously synchronizes data based on the specified schedule. The data synchronization service is responsible only for data synchronization and cannot guarantee data consistency or integrity. After a sync task is complete, you must perform a full data consistency verification between the source and destination.
After a data sync task is complete, you must verify the destination data to ensure its accuracy. You are solely responsible for any data loss or other consequences that result from deleting the source data before you verify the accuracy of the destination data.