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ChristopherKurt-4360 avatar image
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ChristopherKurt-4360 asked SadiqhAhmed-MSFT commented

Standard -> Premium SSD after replication initiated

Greetings!
I am migrating physical VMs to Azure via ASR and misconfigured some fairly busy disks for standard vs premium SSD. With a quiet weekend, they will catch up, but then fall quite behind during business hours come Monday and I'd like to upgrade the target to premium for better throughput.

The KB articles indicate that I can make this change if I cancel the SAS token export for the disk and effectively detach them. However, there is no comment on the impact of doing this or how it is restored.

Do any of you have additional guidance? I can certainly set up a test VM and try it and see what breaks, but I'd prefer other's experience, of course.

Thanks
cmk

azure-site-recovery
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1 Answer

SadiqhAhmed-MSFT avatar image
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SadiqhAhmed-MSFT answered SadiqhAhmed-MSFT commented

According to the official MS documentation - https://docs.microsoft.com/en-us/azure/virtual-machines/windows/migrate-to-premium-storage-using-azure-site-recovery there will be minimal downtime while migrating to Premium storage using Azure Site Recovery and there is no mention of SAS token in the link. You may want to share the KB article you are referring to. IMO, you can try this scenario in your test environment to understand the level of impact.


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