Defrag with low disk space

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    Hello all!
    I have a Windows 2003 SP1 server that has a 400GB drive on a SAN unit. This drive currently has 4% free space (we are working on getting the SAN unit LUN extended out to double the space). However until we are able to do that I need to start getting this server into shape. The server is EXTREMELY fragmented with 50% total fragmentation and 99% file fragmentation. There is an average of 116 fragments per file. This server drive holds all of our Lotus notes mail directories and databases. What would be the best way to get started on this volume? Do you think the Windows defrag utility is up to the task? Should I look into getting a third party software such as Diskeeper? Here is what I was thinking about doing:

    1. Full backup of Lotus Notes and Server
    2. Shutdown lotus domino software (per IBM’s suggestion)
    3. Run windows defrag.
    4. Restart the Lotus Domino when the defrag finishes
    5. Perform steps 1-4 every weekend until this problem is fixed

    The only problem I currently have is that our Lotus Notes server also runs our backup. Every Friday night we run a full backup, with this drive being so fragmented our complete backup (about 1.6TB) takes a very long time (over 40 hours!:x) The backup usually finishes Sunday nights around 6PM. That leaves me Sunday from 6PM till Monday morning 6AM to run the defrag. I cannot run the defrag on weeknights because the daily incremental runs almost all night.

    Is it bad to cancel out a defrag midway through the defrag? I don’t think that the defrag will finish in 12 hours. I will then have to cancel out the defrag and restart the Domino Server. I believe that once we get the drive defragged my backup will speed up a great deal.

    One more thought to add onto this, our SAN unit has a built in defrag utility. Has anyone ever used the built in defrag utility within an EMC Clariion SAN unit? Would this possible work better than the Windows utility? Thanks in advance for any help you can offer. Sorry if this seems confusing, it makes sense in my head:-P

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