Is there any limit on the data upload rate of individual disk replication in ASR?

Aitha, Sravan Kumar 1 Reputation point
2022-06-21T16:53:34.647+00:00

Hello,

We have a DR solution using ASR for on-premise VMWare VMs. There are around 150VMs each containing 3 to 5 disks. Whenever a big file (~1TB) added to any of the source disks the status of that particular VM is going to critical for 1 day due to the large amount of data pending to be replicated. After monitoring this multiple times we observed that the upload rate is ~12MB/sec in all the cases which is causing almost a day to completely replicate the big file to target disk. Even though the overall network bandwidth is good process server uploading a particular VM's data at ~12MB/sec or below. So wanted to check if there are any upload rate limit that process server puts on individual VMs data replication?

Note: Target disk performance tier is P60.

Thank you!

Azure Site Recovery
Azure Site Recovery
An Azure native disaster recovery service. Previously known as Microsoft Azure Hyper-V Recovery Manager.
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  1. David Broggy 6,101 Reputation points MVP
    2022-06-21T17:18:04.517+00:00

    Hi @Aitha, Sravan Kumar
    Yes there are certainly limits, and it looks like you're hitting that limit.
    "If you scale out your deployment beyond 200 source machines or if you have a total daily churn rate of more than 2 TB, you must add process servers to handle the traffic volume."
    ref:
    https://learn.microsoft.com/en-us/azure/site-recovery/site-recovery-plan-capacity-vmware


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