A company has recently executed a planned failover to their disaster recovery site due to scheduled maintenance on their primary site. After maintenance was completed, they need to transition their operations back to the primary site. Which of the following options is the BEST method to ensure a smooth failback process?
Performing a full data backup at the DR site and restoring it on the primary site after maintenance.
Reviewing the logs at the primary site for errors posted during the maintenance period.
Stopping non-essential processes at the primary site to reduce load during the failback.
Synchronizing the latest data changes from the DR site to the primary site prior to failback.