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HomeMDBBL attribute on Information store with Null Values

    Question

  • Usally the Information Stores HomeMDBBL attribute has an enrty for every item in the store. Everything seems to be running fine execpt for one reporting app. When I querry the value of one of my stores there are a few hundread (null) values.

    Does any one know how to regererate the values for the HomeMDBBL atrubute.

    The server in question is the last 2003 Exchange running on Server 2003 Everything else is Echange 2007.

    Monday, October 04, 2010 8:44 PM

Answers

  • On Wed, 6 Oct 2010 01:59:08 +0000, jChandlerXX wrote:
     
    >
    >
    >Yea it's strange...
    >
    >I'm just wondering what is used to calculate that value and can I manually run it???
     
    I'm pretty sure it's the AD that does it. If you want to experiment,
    create a new database and put a mailbox in there. Try using ADSIEDIT
    to remove the backlink and see what happens.
    ---
    Rich Matheisen
    MCSE+I, Exchange MVP
     

    --- Rich Matheisen MCSE+I, Exchange MVP
    • Marked as answer by Allen Song Wednesday, October 27, 2010 1:52 AM
    Wednesday, October 06, 2010 3:13 AM

All replies

  • On Mon, 4 Oct 2010 20:44:27 +0000, jChandlerXX wrote:
     
    >
    >
    >Usally the Information Stores HomeMDBBL attribute has an enrty for every item in the store. Everything seems to be running fine execpt for one reporting app. When I querry the value of one of my stores there are a few hundread (null) values.
    >
    >Does any one know how to regererate the values for the HomeMDBBL atrubute.
     
    "Back-Links" are calculated values. You can't alter them directly.
     
    >The server in question is the last 2003 Exchange running on Server 2003 Everything else is Echange 2007.
     
    That shouldn't make any difference if the mailboxes are still in that
    database. Are there still mailboxes in that database?
     
    I suppose you could try "Run Cleanup Agent" on the database, but
    that's just a WAG on my part.
    ---
    Rich Matheisen
    MCSE+I, Exchange MVP
     

    --- Rich Matheisen MCSE+I, Exchange MVP
    Tuesday, October 05, 2010 2:36 AM
  • Yes the mailboxes are still on that server and everything seems to be working execpt one reporting application.

    Some users have entries in the HomeMDBBL but there are several hundread users who don't. And when checking the HomeMDBBL vlaues there are several hundread Null's

    Tuesday, October 05, 2010 10:27 AM
  • On Tue, 5 Oct 2010 10:27:32 +0000, jChandlerXX wrote:
     
    >
    >
    >Yes the mailboxes are still on that server and everything seems to be working execpt one reporting application.
    >
    >Some users have entries in the HomeMDBBL but there are several hundread users who don't. And when checking the HomeMDBBL vlaues there are several hundread Null's
     
    I gotta say, that's one I haven't heard before -- and I've been using
    Exchange since, well, it seems like the Earth's crust was still warm
    back then. :-)
     
    Since that's a calculated property property I don't know how it could
    be in that state unless there's something evil going on.
    ---
    Rich Matheisen
    MCSE+I, Exchange MVP
     

    --- Rich Matheisen MCSE+I, Exchange MVP
    Tuesday, October 05, 2010 11:57 PM
  • Yea it's strange...

    I'm just wondering what is used to calculate that value and can I manually run it???

    Wednesday, October 06, 2010 1:59 AM
  • On Wed, 6 Oct 2010 01:59:08 +0000, jChandlerXX wrote:
     
    >
    >
    >Yea it's strange...
    >
    >I'm just wondering what is used to calculate that value and can I manually run it???
     
    I'm pretty sure it's the AD that does it. If you want to experiment,
    create a new database and put a mailbox in there. Try using ADSIEDIT
    to remove the backlink and see what happens.
    ---
    Rich Matheisen
    MCSE+I, Exchange MVP
     

    --- Rich Matheisen MCSE+I, Exchange MVP
    • Marked as answer by Allen Song Wednesday, October 27, 2010 1:52 AM
    Wednesday, October 06, 2010 3:13 AM
  • Hi,

    Could you post the Event ID?

    Thanks

    Allen


    Allen Song
    Monday, October 11, 2010 8:12 AM