Dell Compellent Series 40 - Manual (Page 341)

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Defining a QoS
Defining a QoS
Before you create a Replication, create a QoS Definition to choose a link speed and the
amount of bandwidth that Replications are allowed to use between the systems.

To define a QoS definition
1 From the Storage Management menu, select Volume > Replication > Manage
Replication QoS Definitions. The Manage Replication QoS Definitions window
appears with a list of current QoS definitions.
Figure 270. Manage Replication QoS Definitions
2 Click New. The Manage Replications QoS Definitions window appears.
Figure 271. Define Link Speed
3 Select a link speed that most closely represents your link or select Other to enter the
appropriate link speed. The link speed is used to size and utilize replication link
resources to the remote system. This setting defines link attributes only.
4 If you have more than one link to the remote system, enter that number. This adjusts the
maximum bandwidth allowed without changing the communication link settings. This
setting distributes link resources.
5 Click Continue. The system asks if you want to perform bandwidth limiting.
Bandwidth limiting incurs additional overhead on the system and is inherently less
bandwidth efficient. Use bandwidth limiting only in cases where the link is truly shared
with other traffic. For Replications to use all of the bandwidth on the link at all times, click
No. If you click No, continue with Step 6.