DS-Client Help : Working with a Grid DS-Client (Windows)
 
Working with a Grid DS-Client (Windows)
In high-performance environments, you can maximize DS-Client processing and distribute the load across two or more computers using a Grid DS-Client configuration. In this configuration, the DS-Client software is installed on multiple computers called nodes that are configured to use the same database.
The Grid DS-Client is composed of one main node and one or more leaf nodes.Each node in the grid configuration, including the main node, performs its own backup and restore activities.
The main node accepts DS-User connections and manages all running activities to ensures that the leaf nodes do not run conflicting activities. The leaf nodes perform activities as instructed by the main node.
If the main node fails, all activities running on the node stop. However, activities on the leaf nodes continue to run. A new main node is selected from the running leaf nodes.
If the leaf node fails, all activities running on that node will stop. However, activities on the main node and the other leaf nodes will continue to run.
NOTE:  For detailed instructions on how to install a Grid DS-Client, see the Client Software Installation Guide.
Since the DS-User can only connect to the main node, which is chosen randomly from the running nodes, ensure that the DS-User is configured with the IP address of each node in the Grid DS-Client. For more information, see “Configuring the initialization settings”.
NOTE:  This is not necessary if DS-User and all DS-Client nodes are in the same subnet. By default, a DS-User can see all running DS-Clients in the same subnet.
For Grid DS-Clients, the database server saves a copy of the DS-Client databases in the DS-Client buffer of the node that performs the Daily Admin or Weekly Admin activities. By default, this folder is:
C:\Program Files\CloudBackup\DS-Client\db_buffer
The Daily / Weekly Admin activity is allocated by the main node to a leaf node with a lower load.
NOTE:  The location for the DS-Client database dump folder can be configured using the DSCDBDumpPath parameter. For more information, see “Configuring the advanced settings”.
When you connect to a Grid DS-Client, a Grid menu is activated and the following dialog boxes will have an additional option to select by the Node ID:
Activity Log Viewer (Logs > Activity Log)
Load Summary (Reports menu > Load Summary)
DS-Client System Status (Setup > System Activities > System)
DS-Client Advanced Configurations (Setup > Configuration > Advanced tab)