veeam backup to azure blob BAD performance

[azureblob]

We are using Veeam Backup and Replication and the azure appliance to backup directly to azure blob storage. Backups have horrible performance of about 60 MB/s. Read the MS documentation and they clearly state that throughput limits on Block Blocks adhere to max ingress on the storage account:

Target throughput for a single block blob Up to storage account ingress/egress limits1

https://learn.microsoft.com/en-us/azure ... ty-targets

This ingress limit is 60 Gbps for our azure region:

https://learn.microsoft.com/en-us/azure ... 2Ftoc.json

Any ideas why we are only getting throughput via Veeam of 60 MB/s? I used azcopy from the Veeam backup server and got 350 MB/s writing a single blob to the same storage container that Veaam is only realizing 60 MB/s.

Any assistance - greatly appreciated.
Thanks!!

[jorgedlcruz]

Hello, there are a few other topics regarding this very same topic.
I remember reading on a few guides that the 60MB/s is a limit Azure has.
https://github.com/uglide/azure-content ... ecklist.md

I remeber seeing the same performance on Customers as well. It was painful for full copy, but incrementals was quite okay, as it just uploads new blocks.

I am not certain if anythinf has changed. I can give it a try later, as I have 1gbps upload to Internet.

[azureblob]

hi Jorge
I saw those posts too, but I think they aren't accurate.

The MS documentation is very clear that while there is a 60 MB/s throughput limit on writing of single page blob, the block blob adheres to the storage account ingress limits. This is why I am able to use azcop to write a single block blob to the same storage account container that Veeam is configured to use and I achieve throughput rates of 350 MB/s.

I don't believe this is an Azure limit. Otherwise, I'd not be able to exceed 60 MB/s using tools other than Veeam Backup.

Any idea or advice will be greatly appreciated!

[Gostev]

For large blobs, Azure automatically leverages a different transfer mechanism called High-Throughput Block Blob (HTTB), so your test with a single large blob is not an apple-to-apple comparison. Please try other tools on the same workload as Veeam uses (many 0.5-1MB objects) and let us know the results.

[Regnor]

I can't remember my performance results when using Azure Blob, but here someone achieved more then 100MB/s: object-storage-f52/wasabi-vs-backblaze- ... 81522.html

Will try to do some tests next week and give you a feedback. Which region are you in?