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piotrszczupak-6234 asked YuhanDeng-MSFT commented

windows 2019 storage replica, low replication speed 1Gb/s

Hi,

I have a question about storage replica for windows 2019. Namely, I have a cluster cluster replication connected by several 10Gb networks and I have allocated one of these networks for replication. Initialization replica works at full 10G speed, while during operation I noticed that it works much slower and uses a maximum of 1Gb in every situation, which strongly limits the possibilities of the entire cluster. After switching replication to another network, it's just 1Gb that's all. Regardless of the type of replication, whether synchronous or asynchronous is the same. On SMB I don't have any speed limits, qos are disabled etc. What could be the reason?

Piotr

windows-server
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Hi Piotr,

I would like to check if the issue has been fixed? If yes, please help accept answer, so that others meet a similar issue can find useful information quickly. If you have any other concerns or questions, please feel free to feedback.

Best Regards,
Danny

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Hi Piotr,

I would like to check if the issue has been fixed? If yes, please help accept answer, so that others meet a similar issue can find useful information quickly. If you have any other concerns or questions, please feel free to feedback.

Best Regards,
Danny

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YuhanDeng-MSFT avatar image
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YuhanDeng-MSFT answered

Hi,
I did some research but I didn’t find much about storage replica limitations.
However, I did find an article about improving replication performance.
For your reference:
https://docs.oracle.com/database/121/TTREP/perform.htm#TTREP673
Please note: Information posted in the given link is hosted by a third party. Microsoft does not guarantee the accuracy and effectiveness of information.

Thanks for your time.
Best regards,
Danny


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piotrszczupak-6234 answered YuhanDeng-MSFT commented

Hi,

it is about Microsoft windows storage replica not oracle products.

Piotr

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Hi Piotr,
Sorry for the mistake. I did some research but there’s not many official documents about this issue. Hope these will help:
Known issues with Storage Replica:
https://docs.microsoft.com/en-us/windows-server/storage/storage-replica/storage-replica-known-issues
Slow SMB files transfer speed:
https://docs.microsoft.com/en-us/windows-server/storage/file-server/troubleshoot/slow-file-transfer

Also would you check the event viewer and see if there’s anything strange related to this issue?

Thanks for your time.
Best regards,
Danny


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