Rebalance the Load on Data Collector

As a data collector instance monitors more devices, the capacity can be exceeded and the data collector can become overloaded. You can transfer the workload from one overloaded data collector instance to other data collector instances.
HID_View_a_List_of_Data_Collector_Installations
As a data collector monitors more devices, the capacity can be exceeded and it can become overloaded. You can transfer the workload from one overloaded data collector to other data collectors. You can rebalance the load on data collector in the following ways:
  • Automatically.
    DX NetOps Performance Management
    automatically rebalances the load among the selected data collector instances.
    When the load on the data collectors is rebalanced,
    DX NetOps Mediation Manager
    and
    DX NetOps Virtual Network Assurance
    devices are not rebalanced. Only SNMP devices are rebalanced.
  • Move selected devices from one data collector instance to another.
Best Practice
Rebalance or move many items during off-peak hours. These operations can negatively affect end-user performance.
Follow these steps:
  1. Open
    NetOps Portal
    as an Administrator.
  2. Select
    Administration
    ,
    Data Sources
    , and then click a data aggregator data source.
    The
    Monitored Devices
    page appears.
  3. Click
    Data Collectors
    from the
    System Status
    menu.
    The
    Monitored Devices
    page appears.
    This page shows the number of devices and components that each data collector polls. It also shows the total number of devices that are assigned to each data collector instance, including devices that are not currently polled.
Automatically Rebalance the Load on Data Collector
Follow these steps:
  1. Select the data collector instances that you want to rebalance, and then click
    Rebalance
    .
    Select data collector instances within the same IP domain. Only data collector instances within the same IP domain can rebalance devices between one another.
    A confirmation dialog displays the current device and polled item count for each selected data collector and the proposed resulting device and polled item counts.
    You can move devices only to data collector instances that can contact them.
  2. Click
    Yes
    .
    Rebalancing polled items restarts the baseline average calculations for all rebalanced polled items.
Move Selected Devices to a Specific Data Collector Instance
Follow these steps:
  1. Select the data collector instance that you want to move selected devices from.
  2. From the
    Devices
    table, select the devices that you want to move to another data collector instance, and then click
    Move Devices
    .
    The
    Move Devices to Selected Data Collector
    dialog opens.
  3. Select the data collector instance to which you want to move your selected devices from the drop-down list.
    You can move devices only to data collector instances that can contact them. Only data collector instances that are within the same IP domain are included for selection.
  4. Click Yes.
    Moving devices restarts the baseline average calculations for the moved devices.