Efficient Block Storage Sync for Primary Datacenter Recovery

A.

In this scenario, the organization needs to synchronize the block storage in the primary datacenter with the DR site, which has been in use for a week.

Option A: Set up replication This is the most efficient and preferred solution. Replication is the process of copying data from one location to another in real-time or near real-time. It ensures that data is consistent and up-to-date between the primary datacenter and the DR site. By setting up replication, any changes made at the DR site will be automatically updated in the primary datacenter, minimizing data loss and reducing downtime.

Option B: Copy the data across both sites Copying data across both sites can be time-consuming, especially if the data volume is large. It also carries the risk of data loss or corruption if there are any errors during the copying process. Therefore, it is not the most efficient way to bring the block storage up to date.

Option C: Restore incremental backups Incremental backups are backups that only copy changes made since the last backup. While this option is faster than restoring full backups, it is still slower than setting up replication. Additionally, it may not capture changes made during the past week that the DR site was in use.

Option D: Restore full backups This option involves restoring the entire block storage from a backup, which is time-consuming and may not capture the latest changes made at the DR site. It also carries a higher risk of data loss compared to other options.

In conclusion, the most efficient way to bring the block storage in the primary datacenter up to date with the DR site is to set up replication.