Announcement

Collapse
No announcement yet.

How to restore exchange 2000 if upgrade fails

Collapse
X
  • Filter
  • Time
  • Show
Clear All
new posts

  • How to restore exchange 2000 if upgrade fails

    Hi,

    OK I have been planning to migrate my exch2000 to exch2007, thought I will prepare my self with if disaster strikes,

    First question I have is how do I restore my exch2000 back to previous state if migration fails? I am using veritas backup.

    if you give needed steps and order to perform would really appreciate,

  • #2
    Re: How to restore exchange 2000 if upgrade fails

    As there is no in place upgrade options, you don't really need a fall back plan. At no point during the migration is the data at risk. If the new server doesn't work correctly then you simply do not migrate mailboxes to it.

    The only at risk point is between the move and first backup of the new server, but failure at that point is very unusual. In all of the migrations I have done (and it is numerous) I have never had a failure at that point. If the server is configured correctly, with separate drives for the transaction logs and database, a complete loss of data is almost impossible.

    Simon.
    --
    Simon Butler
    Exchange MVP

    Blog: http://blog.sembee.co.uk/
    More Exchange Content: http://exchange.sembee.info/
    Exchange Resources List: http://exbpa.com/
    In the UK? Hire me: http://www.sembee.co.uk/

    Sembee is a registered trademark, used here with permission.

    Comment


    • #3
      Re: How to restore exchange 2000 if upgrade fails

      Thanks Simon for reply,

      with separate drives for the transaction logs and database, a complete loss of data is almost impossible.
      I am planning to get 4 drives and configure them for RAID10, Can you please advise if this will be right configuration or please advise what is the best RAID combination for Exchange2007 both for physical an logical drive?

      One more Q, we have Outlook XP will that work with Exch 2007?

      Many Thanks again,

      Comment


      • #4
        Re: How to restore exchange 2000 if upgrade fails

        A single array is no good, because the performance will suck.
        If you are only using 4 drives then two physical arrays is the best option.

        When it comes to partitions, there is no performance gain. The only thing I do is partition the first array so that the OS/Apps and transaction logs are kept separate. Then if something goes wrong and the logs build up quickly, it hits a buffer. Trying to get Windows to boot when there is no space is not easy!

        I believe it will work, but you must have Public Folders and it isn't a supported version. I haven't used Outlook XP for many years.

        Simon.
        --
        Simon Butler
        Exchange MVP

        Blog: http://blog.sembee.co.uk/
        More Exchange Content: http://exchange.sembee.info/
        Exchange Resources List: http://exbpa.com/
        In the UK? Hire me: http://www.sembee.co.uk/

        Sembee is a registered trademark, used here with permission.

        Comment


        • #5
          Re: How to restore exchange 2000 if upgrade fails

          Thanks,

          So what you are saying is that out of 4 drives have two raid 1 done and then partition each raid one in to two logical drives or partition? is this the best possible combination? how about doing RAID 5 with the four drives and keep the transaction log and database on separate partition?

          I heard from a friend that public folder will not be supported on Exch2007 can you share some light on this?

          Comment


          • #6
            Re: How to restore exchange 2000 if upgrade fails

            Originally posted by Yantra View Post
            I heard from a friend that public folder will not be supported on Exch2007 can you share some light on this?
            That is wrong. Public Folders is supported in both Exchange 2007 and Exchange 2010.

            There is nothing to be gained from using RAID 5. You want the logs and database on separate physical disks. Exchange is a high transactional database and writes to two places at once. If those two places are on the same array/physical disks then the server thrashes itself. RAID 5 is slow anyway.

            You only need to partition the first drive, the second one can be left as a single partition.

            Simon.
            --
            Simon Butler
            Exchange MVP

            Blog: http://blog.sembee.co.uk/
            More Exchange Content: http://exchange.sembee.info/
            Exchange Resources List: http://exbpa.com/
            In the UK? Hire me: http://www.sembee.co.uk/

            Sembee is a registered trademark, used here with permission.

            Comment


            • #7
              Re: How to restore exchange 2000 if upgrade fails

              Many Thanks Simon for quick reply,

              So out of four drives I have three logical partition, on the first I should put OS and on the second Transaction logs and on the third put exch database, am I right here?

              That is wrong. Public Folders is supported in both Exchange 2007 and Exchange 2010.
              So what you are saying is public folder is supported but you will need Outlook 2003 or higher?

              Comment


              • #8
                Re: How to restore exchange 2000 if upgrade fails

                As you are migrating from Exchange 2000 you will get a public folder store. You can only run Exchange 2007 without public folders once Exchange 2003 or older has been removed correctly AND all clients are Outlook 2007 or higher.

                Simon.
                --
                Simon Butler
                Exchange MVP

                Blog: http://blog.sembee.co.uk/
                More Exchange Content: http://exchange.sembee.info/
                Exchange Resources List: http://exbpa.com/
                In the UK? Hire me: http://www.sembee.co.uk/

                Sembee is a registered trademark, used here with permission.

                Comment


                • #9
                  Re: How to restore exchange 2000 if upgrade fails

                  Many Thanks Simon for your replies, they were very helpful.

                  Comment

                  Working...
                  X