Dell PowerStore Protecting Your Data

Set the metro role

The system from which the metro resource (volume or volume group) is configured automatically set as preferred upon metro resource configuration. When the metro resource is fractured or paused, and if metro witness is not configured, the preferred system keeps host and production access and an active association with a protection policy.

When the metro resource state is Operating Normally (active/active), you can change the metro resource role from preferred to nonpreferred or nonpreferred to preferred using the following options:

• Modify Preferred Role - Use this option to change the current role of a selected metro resource. This option can be used from both the preferred or nonpreferred system.
  NOTE:You can access this option by selecting Protection > metro and then clicking the metro status of the relevant resource to open the metro resource details window.
• Set Local Role to Preferred - Use this option to set the role of multiple selected nonpreferred metro resources to preferred. This option should be used before shutting down the preferred system for planned maintenance. Setting the nonpreferred metro resources to preferred allows maintaining host and production access during the shutdown.