Changing the relationship bandwidth for a system by using the CLI

You can use the command-line interface (CLI) to change the relationship bandwidth for a system.

The relationship bandwidth limit controls the maximum rate at which any one remote-copy relationship can synchronize. The overall limit is controlled by the bandwidth parameter of each system partnership. The default value for the relationship bandwidth limit is 25 megabytes per second (MBps), but you can change this value by following these steps:

Issue the lssystem command to list the current relationship bandwidth limit of the system.
For example:
```
lssystem system_id_or_system_name
```
Where system_id_or_system_name is the ID or name of the system.
For future reference, record the current relationship bandwidth limit that is displayed.
For example: relationship_bandwidth_limit 25
To change the relationship bandwidth limit of the system, issue the following command:
```
chsystem -relationshipbandwidthlimit
 system_relationship_bandwidth_limit
```
Where system_relationship_bandwidth_limit is the new limit for the system. Issue the command on both systems in a relationship.