mirroring query, rebooting the witness / mirror

  • So I have a mirror set up as follows:

    High saftey. High profile System.

    Principal @ site 1, server 1.

    Witness & mirror @ site 2, server 2.

    Not ideal, not my set up.

    If I need to reboot server 2, is pausing mirroring for all mirrored databases enough to ensure that the databases on server 1 remain principal & available?

    Or will server still poll for the witness, find it unavailable when server 2 is rebooted & spazz out.

    I would test, if I could.

    Appreciate any responses.

  • snomadj (8/10/2015)


    So I have a mirror set up as follows:

    High saftey. High profile System.

    Principal @ site 1, server 1.

    Witness & mirror @ site 2, server 2.

    Not ideal, not my set up.

    in this setup, everytime there's a disconnection between the nodes the principal database will go offline, that's not an ideal scenario. Ideally the witness will sit on a 3rd site, if not it should go with the Principal

    snomadj (8/10/2015)


    If I need to reboot server 2, is pausing mirroring for all mirrored databases enough to ensure that the databases on server 1 remain principal & available?

    Or will server still poll for the witness, find it unavailable when server 2 is rebooted & spazz out.

    I would test, if I could.

    Appreciate any responses.

    If you pause the mirror session the Principal should stay online, but will run exposed

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

  • Thanks for the response to another of my posts! I appreciate the confirmation of how it should work and the 2nd opinion.

    The design is completely ill conceived but for boring, non technical reasons, cannot currently be changed.

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