Dell PowerStore Protecting Your Data

• When there are required configuration changes that cannot be performed when the resource is operating normally, such as changing the resource properties.
• When the preferred or nonpreferred systems require maintenance, such as replacement of faulty hardware components or changes in network infrastructure.
• When there is a failure on the preferred system that requires promoting the nonpreferred system to enable controlled recovery.

Pause can be initiated from either the preferred or nonpreferred system. When a metro resource is paused, the synchronization between the systems is temporarily stopped. Production access and protection policies remain active on the preferred system.

When a metro resource is fractured, and there is no connection between the local and remote system, pause is implemented only on the local system (where it was initiated):

• When a pause is initiated from the preferred system:
  • Host and production access remains enabled on a paused, preferred metro resource.
  • Host and production access remains unchanged on the nonpreferred metro resource.
• When a pause is initiated from the nonpreferred system:
  • Host and production access remains disabled, unless the metro resource has been promoted.
  • Since there is not network connectivity, the pause does not modify the preferred metro resource state.
• When connectivity is resolved, pause should be initiated from the remote system as well.