Post reply

Adding a LUN without taking SQL Cluster down?

  • September 1, 2009 at 9:35 am

    #135823

    Is it possible to add a LUN to a SQL Cluster without taking the cluster offline?

    TIA -- Laszlo

  • September 1, 2009 at 10:54 am

    #1047674

    Laszlo

    What type of cluster is this, AA or AP?

    Thanks

    Raj

  • September 1, 2009 at 11:02 am

    #1047677

    It's Active-Active. -- Laszlo

  • September 1, 2009 at 3:17 pm

    #1047865

    This may not be precisely what you want or need.

    We have in the past added a lun as a mount point in an already existing lun. This makes it immediately available for use (after permissions are applied). In this scenario we did not have to bring down the cluster.

    Jason...AKA CirqueDeSQLeil
    _______________________________________________
    I have given a name to my pain...MCM SQL Server, MVP
    SQL RNNR
    Posting Performance Based Questions - Gail Shaw[/url]
    Learn Extended Events

  • September 3, 2009 at 9:07 am

    #1048819

    Thanks for helping - what we eventually did that day a couple of days ago was going to another machine that was not mission-critical so we could cycle SQL services and implement the new LUN and our recovery issue through it. This worked fine and our issue is no longer an item.

    Bottom line - we never found a means of attaching a LUN to the SQL Server without turning off services and adding dependencies. Otherwise, even though Windows Explorer could "see" the added LUN, SQL could not - plain and simple. No way to force it, that I could find, on-the-fly...

    -- Laszlo

  • January 13, 2010 at 6:17 pm

    #1103385

    It's been my experience (and I've seen it noted elsewhere in the forums here) that that is not entirely true. If you don't create the dependency, you can't see the drive in any of the GUIs but if you were to run "BACKUP DATABASE [dbname] to disk = '<newdrive>:\folder' " it would work (assuming NTFS permissions had been set correctly of course). The same applies if you put the command in a scheduled task.


    Scott Duncan

    MARCUS. Why dost thou laugh? It fits not with this hour.
    TITUS. Why, I have not another tear to shed;
    --Titus Andronicus, William Shakespeare

Viewing 6 posts - 1 through 5 (of 5 total)

You must be logged in to reply to this topic. Login to reply