Dell Storage Manager 2020 R1 Administrator's Guide

Create a QoS Definition

Create a QoS definition to control how bandwidth is used to send replication and Live Volume data between local and remote Storage Centers. A QoS definition is also required to create a Live Migration of a volume.

1. Click the Replications & Live Volumes view.
2. Click the QoS Nodes tab.
3. In the right pane, click Create QoS Node. The Create Replication QoS wizard appears.
4. Select the Storage Center for which you want to create a QoS node, then click Next. The Create page appears.
5. Configure the attributes of the QoS definition.
   1. In the Name field, type a name for the QoS definition.
   2. In the Link Speed field, specify the speed of the link in megabits per second (Mbps) or gigabits per second (Gbps).
   3. Select the Bandwidth Limited check box, then click Finish. The wizard closes and the Edit Replication QoS Schedule dialog box appears.
6. Configure bandwidth limits for replications and Live Volumes associated with the QoS definition.
   1. Limit bandwidth for a time range by clicking the first cell in the range and dragging to the last cell in the range, then right-click the selection and select the percentage of available bandwidth that can be used.
      NOTE:If you select Blocked for a time range, no data is transferred during that period for all replications, Live Volumes, and Live Migrations that are associated with the QoS node. This can cause synchronous replications to become unsynchronized. Live Migrations that use only blocked QoS nodes cannot be completed.
   2. Limit bandwidth for other time ranges as needed.
7. When you are finished, click OK.