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A company is implementing Azure Site Recovery (ASR) to protect their on-premises Hyper-V virtual machines to Azure. They need to ensure that the initial replication of large virtual machines (VMs) is performed efficiently without consuming significant internet bandwidth. Which method should they use for the initial replication?
- AOnline replication over the public internet
- BOnline replication over VPN Gateway
- COnline replication over ExpressRoute
- DOffline replication using Azure Data Box
Show answer & explanationAnswer & explanation
Correct answer: D. Offline replication using Azure Data Box
For large initial replications in Azure Site Recovery, especially for on-premises Hyper-V VMs to Azure, using Azure Data Box for offline replication is the most efficient method to avoid consuming significant internet bandwidth. This approach involves copying the initial data to a physical appliance and shipping it to Azure.
Why the other options are wrong
- A. Public internet replication is the least efficient for large initial datasets due to potential bandwidth limitations and higher transfer times.
- B. VPN Gateway provides secure connectivity but still uses internet bandwidth for online replication, which can be slow for large datasets.
- C. ExpressRoute provides dedicated, private connectivity but is an online method and can be costly, still consuming bandwidth for initial large replication.
Azure Site Recovery Offline Replication
A method in Azure Site Recovery to transfer initial, large datasets to Azure using a physical appliance like Azure Data Box, avoiding internet bandwidth consumption.
- Used for initial replication of large VMs.
- Prevents high internet bandwidth usage.
- Typically involves shipping a physical device.
Memory trick: To start strong, choose the right path for your data's journey to the cloud.