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  • Dsproxy

    Hi all,
    I was wondering if it is actually required to keep the Information Store and mailboxdatabases on an Exchange 2003 back-end servers ones all mailboxes have been migrated to Exchange 2007?

    I know that Exchange 2003 uses referrals (DSPROXY), in which it forwards the client to another server (HomeMDB, MSExchHomeServer). But this process does not require the mailboxdatabase and or information Store.
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  • #2
    Re: Dsproxy

    Are you removing the Exchange 2003 server?
    If not, why is it being kept around?

    Without knowing what it is being used for, it is hard to say whether it needs to be retained or not. Once the clients have all updated themselves, then it wouldn't be required.

    Simon.
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    Simon Butler
    Exchange MVP

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    • #3
      Re: Dsproxy

      The customer is planning on migrating from Exchange 2003 to Exchange 2007. They want to reuse the assigned storage on Exchange 2003 for Exchange 2007. So therefore the question if the assigned storage is still required.

      I proposed to keep the IS and mailbox-databases, just to be on the safe side. Although i would say that they are no longer required, ones the mailboxes have been migrated to 2007. The Exchange 2003 back-end server is still required to be on-line to complete the transition process (Outlook client), but the (empty) mailbox databases are presumable no longer required.
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      • #4
        Re: Dsproxy

        You can't reuse the storage until the migration is complete.
        Retaining the database files is going to be close to useless, because all they will contain is white space, nothing else.
        Therefore you may as well drop the databases and then create new small ones so that the information store service can run.
        If these servers are going to process any SMTP traffic then they will need to have a database of some description running.

        Simon.
        --
        Simon Butler
        Exchange MVP

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        • #5
          Re: Dsproxy

          The problem is that this as a pretty large environment. So we could rescale the Exchange servers and free storage on Exchange 2003 and reassign it to Exchange 2007. Yet to complete the smooth transition of the Outlook profile, the users have to connect to there previous Exchange 2003 server in order to complete the migration process (DSPROXY referral). Now you know that in some environments this can take up an considerable time due to sickness, holiday, maternity, etc untill all clients have made that final connection. So they are planning to keep there back-end on-line for a longer period of time.

          Basically i do not see any issue in resizing the Exchange 2003 environment by moving content from one database to another (to clear white space), but am wondering if that is really necessary. If the information stores and databases are not required in the referral process they can even be removed.
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          • #6
            Re: Dsproxy

            Hi

            Just wanted to check with you are you trying to do autodiscover with OL2003 and Ex2007 i.e after the user's mailbox has been moved and when they open their outlook 2003 they will automatically be redirected to new mailbox server i.e. e2k7 rather than manually configuring their profile and changing the exchange server.
            I know there is no autodiscover in OL2003 but i know that some consultants has used scprits to achieve.

            If the above is not the case then resizing exchange2003 won't have any effect on users connecting to exchange 2007
            Thanks & Regards
            v-2nas

            MCTS 2008, MCTIP, MCSE 2003, MCSA+Messaging E2K3, MCP, E2K7
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            • #7
              Re: Dsproxy

              There is no need to reconfigure the existing Outlook profiles. The reconfiguration is done automatically when clients connect after there mailbox has been moved. The Outlook client will connect to the mailbox server in the Outlook Profile. As the mailbox has been moved to another server. The mailbox server will see that it no longer hosts the mailbox of the client connecting. The mailbox server will then query the GC for information of the user connecting (DSPROXY). It will look for the HomeMDB and MSeXCHomeServer attributes in the user object, and will redirect the connecting client to the values in these attributes.
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