How to create a data flow

Ops Center Protector User Guide

Version
7.7.x
Audience
anonymous
Part Number
MK-99PRT002-08
ft:lastEdition
2023-10-26

Ensure that the policies that you want to assign have been defined, see How to create a policy.

The following procedure describes how to create a simple one-to-one data flow. More complex data flows involving one-to-many and cascaded topologies can be constructed by following the same general approach:

  1. Click the Data Flows link on the Navigation Sidebar to open the Data Flows Inventory.
  2. Click the Create new item tile to open the Data Flow Wizard.
  3. Enter a Name and Description for the data flow, then click Next.
    The next wizard page is displayed with a blank workspace.
  4. Drag a source node from the Nodes or Node Groups list onto the data flow workspace.
    The node is displayed on the workspace with a grey box around it showing it is selected. The available Policies appear next to the workspace. If a policy contains operations that can be performed locally to the node, without the need for a separate destination node (e.g. local snapshot operations), then these will be displayed directly below the policy.
  5. Select the policies and/or local operations that you want to assign to the source node by checking all those that apply in the Policies listed to the right of the workspace.
    • If a policy is selected that requires a destination node and corresponding operation assignment to complete it, then a warning triangle icon will appear next to the source node, indicating that the node has an incomplete policy assigned to it. Completing the policy assignment is described in the steps that follow.
    • If an operation is selected, then an operation properties dialog will be displayed. Enter the required operation properties in the dialog and click OK.

      If you choose not to define the operation properties now (by clicking Cancel), they can be configured later by clicking the Configure Operation Properties button displayed below the respective operation in the Policies area to the right of the data flow workspace.

      After the operation properties have been applied, they can be edited by clicking the Edit Operation button in the operation summary box next to the operation name.

      If a node has a snapshot operation assigned to it, a snapshot icon will appear in the bottom right corner of the node.

  6. Now, place and connect the destination node. There are two methods for connecting nodes:
    • Drag the destination node from the Nodes list, passing over the source node that you want it to connect to, then drop the destination node where you want to place it. A connection is created between the destination and source node. Now select the destination node.
    • Place the destination node on the workspace then refer to How to connect nodes on a data flow.
    The destination node is displayed on the workspace with a grey box around it showing it is selected. The available Policies appear to the right of the workspace. If a policy contains operations that can be performed by the destination node (e.g. remote replication operations), then these will be displayed below the policy.
  7. With the destination node selected, choose the operations that you want to assign to it by checking all those that apply in the Policies area to the right of the workspace. Note that the policy checkbox cannot be selected by the user. When an operation is selected, an operation properties dialog will be displayed. Enter the required properties in the dialog and click OK.
    If an operation is selected that completes a policy previously selected on the source node, then the warning triangle icon will be removed from the source node, indicating that the node now has a completed policy assigned to it. The image below shows a source node with a remote policy assigned (myReplication) that is completely specified (the operation Mirror (Replicate) has been assigned to the destination node). A local operation (mySnapshot) has also been assigned to the source node.
    Figure. Source node with a remote policy assigned (completed assignment)
  8. Select the connection between the source and destination nodes to display the Routed Policies and Mover Settings to the right of the workspace.
    1. The Routed Policies area lists the policies being routed along the selected connector.
    2. Select the Type of mover to be used in the Mover Settings.
      Note: The Data Flow Wizard only prevents some incorrect mover and operation combinations from being constructed. The Rules Compiler will however generate warnings or errors for incorrect combinations. Ensure the correct mover type is used with a given operation when creating data flows.
    3. Optionally enter a Label for the connection.
    4. Turn network compression on or off with Enable network data compression.
    5. For Host Based policies only, click Bandwidth Settings to open the Mover Bandwidth Settings Dialog, then set the times and days for Default Speed, High Speed and Low Speed network utilization by clicking the required cells.
  9. When you have finished drawing the data flow and assigning policies, click Finish.