Replicating client data to multiple servers
You can replicate data from a source replication server to two target replication servers. The process of creating copies of data and sending the copies to multiple servers is called multi-target replication. Replication of data helps to support disaster recovery and data availability if the source replication server becomes unavailable. The replication operation not only copies the data to the target replication server but also communicates the metadata, such as attributes of the source server nodes and file spaces.
About this task
Multi-target replication requires one source replication server and two target replication servers. After the servers are defined, to schedule multi-target replication, you must define multiple replication storage rules. Replication storage rules are designed for scheduling and automating the replication process. For example, to send data from a source replication server to two target replication servers, you would define two replication storage rules. By defining multiple replication storage rules, you can schedule, configure, and run the rules independently.
When you define a replication storage rule, you must specify the name of the target replication server. You can specify other parameters to define the starting time and maximum duration of the replication process. You can also define subrules for a replication storage rule. Subrules are designed to provide more granularity while defining nodes, file spaces, and the data types to be replicated. When you define a subrule, you must specify the name of the replication storage rule, also referred to as the parent rule. When the replication storage rule runs, client node data is replicated. During subsequent processing of the replication storage rule, only new or changed client node data is replicated.