Can VMotion (VMWare) cause database mirroring to be suspended/disconnected?

  • Has anyone experienced any issues with VMotion from VMWare causing database mirroring sessions to be suspended or disconnected?

    In our environment we are doing database mirroring with SQL 2008 from physical (principal) to virtual (mirror) SQL server instances, and we have experienced frequent occasions of mirroring getting suspended or disconnected.

    We wonder whether VMotion in the virtual environment (set up with VMWare) is the culprit.

    Would anyone be able to comment on that?

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    SQL Server 2016 Columnstore Index Enhancements - System Views for Disk-Based Tables[/url]
    Persisting SQL Server Index-Usage Statistics with MERGE[/url]
    Turbocharge Your Database Maintenance With Service Broker: Part 2[/url]

  • Hi

    What makes you think it's VMotion, do you supsect manual or automatic VM movement?

    One thing to check would be the network stack between the physical and virtual networks, any issues here could have an effect

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    "Ya can't make an omelette without breaking just a few eggs" 😉

  • Perry Whittle (11/3/2010)


    Hi

    What makes you think it's VMotion, do you supsect manual or automatic VM movement?

    One thing to check would be the network stack between the physical and virtual networks, any issues here could have an effect

    We suspect automatic VM movement, but we don't have any hard evidence it is indeed the cause.

    I was just wondering if anyone else has experienced this. Thanks for the suggestion!

    __________________________________________________________________________________
    SQL Server 2016 Columnstore Index Enhancements - System Views for Disk-Based Tables[/url]
    Persisting SQL Server Index-Usage Statistics with MERGE[/url]
    Turbocharge Your Database Maintenance With Service Broker: Part 2[/url]

  • Do you have access to the VI client? You can create rules regarding VM movement when DRS is enabled on the ESX cluster

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    "Ya can't make an omelette without breaking just a few eggs" 😉

  • Perry Whittle (11/3/2010)


    Do you have access to the VI client? You can create rules regarding VM movement when DRS is enabled on the ESX cluster

    Unfortunately not, no expertise and no access... :w00t:

    __________________________________________________________________________________
    SQL Server 2016 Columnstore Index Enhancements - System Views for Disk-Based Tables[/url]
    Persisting SQL Server Index-Usage Statistics with MERGE[/url]
    Turbocharge Your Database Maintenance With Service Broker: Part 2[/url]

  • Ahh, OK. Definitely check the network response and stability between the VM and the physical node too if you can.

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    "Ya can't make an omelette without breaking just a few eggs" 😉

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