Change VM size but E8ds_v5 not available

Oscar Moyano 66 Reputation points

Hello everyone!

I have a virtual machine with size Standard F8s v2 (8 vCPU / 16Gb)

I want to change it to E8ds_v5 but when I try I can only view E8ds_v4

I didn't find if it's normal that E8ds_v5 is not available? If I try to create a new VM I can chose E8ds_v5 without problem.

There are a important performance difference between E8ds_v4 and E8ds_v5 sizes?

Thanks a lot for your replys

Azure Virtual Machines
Azure Virtual Machines
An Azure service that is used to provision Windows and Linux virtual machines.
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  1. George Chrysovalantis Grammatikos 386 Reputation points MVP

    Hi @Oscar Moyano ,

    The E8ds_v5 and E8ds_v4 VM sizes fall into the Memory Optimized category, which offers a high memory-to-CPU ratio. For this reason, they are the best choice when it comes to database servers. Both are the same except for the higher number of IOPS the E8ds_v5 has compared to E8ds_v4.

    For more technical details about E8ds_v4, check this link.


    For more technical details about E8ds_v5 , check this link.


    About the E8ds_v5 VM size, that wasn't available to change the size sounds very odd because you were able to create a VM with the same size from scratch. Could you please give more details? Any error or informational message?

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  1. Oscar Moyano 66 Reputation points

    Hi @George Chrysovalantis Grammatikos thanks for your reply.

    I don't have error message when I try to change the size of the existant VM (I tried to power off but same list of ressources). I can view:


    But when I try to create a new VM I can view the correct size:


    Maybe it's no possible to change size Standard_F8s_v2 to Standard_E8ds_v5. But I think that v4 size it's a good choice for my sql server.


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