Discussions specific to the Microsoft Hyper-V hypervisor
rold
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Re: Windows Server 2019 Hyper-V VM I/O Performance Problem

Post by rold » 3 people like this post

RCT problem will celebrate its 5th anniversary this year)

WesleyUC
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Re: Windows Server 2019 Hyper-V VM I/O Performance Problem

Post by WesleyUC »

Wow, 5th already? Time flies.
But still no patch from Microsoft?
Did veeam get an update already from MS about this problem?

wishr
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Re: Windows Server 2019 Hyper-V VM I/O Performance Problem

Post by wishr »

Hello,

I will confirm with the responsible person, but to the best of my knowledge, no updates so far. The recommendation remains the same: more users open up cases with Microsoft - higher changes the issue will get fixed (actually, this applies to any issue when the root cause lies on the Microsoft side).

Thanks

pterpumpkin
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Re: Windows Server 2019 Hyper-V VM I/O Performance Problem

Post by pterpumpkin »

Some (meaningless) updates from my MS case.

16/02/2021
A private fix was tested in one of the customer’s environment, however that did not help and hence Internal Escalations were involved again.

Currently additional log collection is in progress and it may take some more time for next update.

We will keep you posted as soon as we get a final resolution/bug fix.

17/03/2021
Currently the PG team is working on performance testing by increasing the IOPS and trace collections, and it may take some more time.

I will email you once we have a final resolution/workaround for this bug fix.


14/04/2021
We are still waiting to hear from PG team.

There is no update on the final fix yet, and unfortunately no ETA as well.

We will keep you posted as soon as we get an update on the fix/resolution.

It seems like he's just blowing me off...

In the meantime we continue to do a daily live migration of the affected VM which stops the issue from occurring.

johan.h
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Re: Windows Server 2019 Hyper-V VM I/O Performance Problem

Post by johan.h » 2 people like this post

We had several customers test the fix, and it did not work. In my lab environment there was some improvement with the fix. We're waiting to hear back around what next steps are.

rold
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Re: Windows Server 2019 Hyper-V VM I/O Performance Problem

Post by rold »

Veeam guys please port your own Veeam CBT driver to Server 2016 and later
It's the best fix you can do :)

wishr
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Re: Windows Server 2019 Hyper-V VM I/O Performance Problem

Post by wishr »

Hi Rold,

Currently, we have no such plans, and this post pretty much explains why.

Thanks

johan.h
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Re: Windows Server 2019 Hyper-V VM I/O Performance Problem

Post by johan.h » 1 person likes this post

I was told they are still working on further testing. Will keep you posted as we learn more.

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