Converitng from Basic Disc to Dynamic Disc for Win 2003 Server

We have an partition/volume that is running out of space. We also have a special need to increase the size of the existing partition rather than just create a new partition. Dell reps are saying that its possible if you convert your disc type fro Basic to Dynamic. Dynamic disc would allow one to span a volume over multiple dicss.

Any risks to the data on the partition being converted to dynamic? Afterwards I would add storage via SCSI using Dell powervault...
Mark-FungAsked:
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amwinsitCommented:
Personally i only use dynamic disks as a last resort. I assume the space you will be adding needs to be provide via a differnt raid group?  if at all possible i would reccomend using the new disks as mount points on the existing volume and not convert the partition to dynamic. That said as long as you aren't spanning you OS drive across the new drives you should be fine if the disk you are referencing holds the OS drive i would reccomend a backup and restore to the new disks
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pnormsCommented:
Is this server already running on a RAID array? If so you are asking for a world of hurt as once you convert it to dynamic and something goes wrong neither Dell nor MS will support you without a premium contract. If there is no RAID you are ok to can go from Basic to Dynamic very easily but not the other way around.
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Mark-FungAuthor Commented:
Yes the server is already in a RAID 5 ARRAY.  As far as you know, if converting works as intended, nothing should happen to the data already there?
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pnormsCommented:
Yes I can tell you right now that MS and the major vendors will not support a dynamic disk over a RAID array if anything goes wrong, we had it happen and had to purchase MS premium support (which was big big bucks.) Why can't you just add another disk and expand the array? Obviously you should try to have a backup of every server but especially before you do anywork on it. I would just add another disk to the array and use GPARTED to expand it out.
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pnormsCommented:
Excuse me, I didn't realize you were going to be adding another storage unit, it looks like dynamic disks are your only option, unless your take a backup upgrade the disks in your existing array to larger sizes and restore the image. If you are going to go with the dynamic disk I would get it in writing from your Dell account rep that they will support you down the line in the case of a disk falure.
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amwinsitCommented:
Do you have a single logical drive on the Raid 5? If that is case i strongly caution you against converting the drive to a dynamic disk. Please consider the backup and restore method or mount points if you need the space on a single drive letter.
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