When Cloud Consumers are automatically redirected to the new cloud storage device?

Cloud architecture are basically depend upon the storage replication system and it keeps synchronize the primary cloud data in the duplication storage.

And the redundant data is used when the logical unit number are migrated from one place to another. Then, it creates a copy of logical unit number.

Whenever, the primary device fail the storage path diverts the request of cloud user in secondary logical unit number and it automatically redirect to new cloud device storage.