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How can I set where the Exchange 2010 DAG replicas are stored? RRS feed

  • Question

  • I have finished creating my Exchange 2010 environment and just go the DAG up an running and performed a quick test of the replication with the primary DBs for each of my two servers (i have two more servers that will eventually be a CAS and one of them is acting as the Witness).  I want to make sure the the DAG replicas for both DBs and Logs are going to the proper drive letter (in my case E:\ for DBs and F:\ for Logs on my 2nd server) and I am not sure how to make sure this is happening before I mass replicate all 24 DBs.

    Right now the Primary DBs from both MB servers are replicating correctly but they are in the C:\ drive by default.  My other DBs from the primary server are going to an E:\ and F:\ drive by design and I need to ensure that the DAG replicas do the same.

    thanks.
    Todd

    Todd Gile Network Engineer SSE, Inc.

    Monday, October 15, 2012 3:19 AM

Answers

  • DAG uses the Same Continuous Asynchronous Replication mode as CCR/SCR. We don't need to Set the location for the Passive Copies as it is a exactly the Replica of the Primary Database Path.

    Soon the Replication is enabled, the values specified below are recognized and the path (which is common to active/Passive) will be used while DB/Logs are replicating:

    msExchEdbFile:Database File Path

    msExchESEParamLogFilePath: Log Folder Path

    msExchESEParamLogFilePath: System Path(.chk File location).

    An error message is generated when a sub-sequent Drive path is not found on the Target Location.So, there doesn't need to be additional care that we must take to set the target path's for DAG Replicas. For More info Refer to the URL's Below:

    Understanding DAG's

    Understanding Mailbox DB Copies


    Exchangeexperts.in ~ ( Exchange | 2003/2007/2010/E15(2013)) ~Mark this if Helpful~ This Information is provided "AS IS" and confers no Rights!!


    • Proposed as answer by PK M Monday, October 15, 2012 3:51 AM
    • Edited by PK M Monday, October 15, 2012 3:51 AM
    • Marked as answer by Todd Gile Tuesday, October 16, 2012 1:08 PM
    Monday, October 15, 2012 3:50 AM

All replies

  • DAG uses the Same Continuous Asynchronous Replication mode as CCR/SCR. We don't need to Set the location for the Passive Copies as it is a exactly the Replica of the Primary Database Path.

    Soon the Replication is enabled, the values specified below are recognized and the path (which is common to active/Passive) will be used while DB/Logs are replicating:

    msExchEdbFile:Database File Path

    msExchESEParamLogFilePath: Log Folder Path

    msExchESEParamLogFilePath: System Path(.chk File location).

    An error message is generated when a sub-sequent Drive path is not found on the Target Location.So, there doesn't need to be additional care that we must take to set the target path's for DAG Replicas. For More info Refer to the URL's Below:

    Understanding DAG's

    Understanding Mailbox DB Copies


    Exchangeexperts.in ~ ( Exchange | 2003/2007/2010/E15(2013)) ~Mark this if Helpful~ This Information is provided "AS IS" and confers no Rights!!


    • Proposed as answer by PK M Monday, October 15, 2012 3:51 AM
    • Edited by PK M Monday, October 15, 2012 3:51 AM
    • Marked as answer by Todd Gile Tuesday, October 16, 2012 1:08 PM
    Monday, October 15, 2012 3:50 AM
  • Hello,

    From http://technet.microsoft.com/en-us/library/dd979802.aspx

    "All copies of a database use the same path on each server containing a copy. The database and log file paths for a database copy on each Mailbox server must not conflict with any other database paths".


    Cara Chen

    TechNet Community Support

    Tuesday, October 16, 2012 3:12 AM
  • Thank you for the information.  All is working well and I am 10 DBs into my replication.  Should have all of them done in about 2 days.

    Todd Gile Network Engineer SSE, Inc.

    Tuesday, October 16, 2012 1:09 PM