DBBC Check on AG

  • Hello,

    I would like to have question,
    how dbbc check works on AG ? should be on all replicas ? or only on primary ?
    I am using Ola Hallengren scripts and now is on all replicas, normaly is working without problem, but now I got error problem with memory "There is insufficient memory available in the buffer pool" 

    It is after failover, before this "secondary" was "primary" and wasnt some problem with memory. 

    What can be this issue ?

    Thanks

  • CheckDb should be all replica. The memory error you need to capture the data to do further analysis.

    Muthukkumaran Kaliyamoorthy
    https://www.sqlserverblogforum.com/

  • muthukkumaran Kaliyamoorthy - Thursday, March 14, 2019 4:02 AM

    CheckDb should be all replica. The memory error you need to capture the data to do further analysis.

    No. You need to check your primary too, because that is the source of the data and also possible source of corruptions.
    Brent Ozar has a succinct piece on this.

  • BrainDonor - Thursday, March 14, 2019 4:29 AM

    muthukkumaran Kaliyamoorthy - Thursday, March 14, 2019 4:02 AM

    CheckDb should be all replica. The memory error you need to capture the data to do further analysis.

    No. You need to check your primary too, because that is the source of the data and also possible source of corruptions.
    Brent Ozar has a succinct piece on this.

    That's what I said. We need to run all replicas, if it is a VLDB, we should consider different options and methods.

    Muthukkumaran Kaliyamoorthy
    https://www.sqlserverblogforum.com/

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