Dynamic disk help and mirroring

I have a Dell PowerEdge SC430 with two SATA drives (C drive and D drive).  I have installed Windows 2000 Server.  

Both drives have been converted to Dynamic disks but the C drive cannot be extended in order to create a mirror.

I am getting the message:

Extend Volume
The selected volume was originally created on a basic disk and cannot be extended. Only volumes originally created on dynamic disks can be extended.

The SATA D Drive can be extended.

My questions is, even if I have to reinstall Windows, how can I ensure that the C Drive disk be properly formatted so that it will be able to be extended. -- Dan
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Lee W, MVPTechnology and Business Process AdvisorCommented:
No.  What do you mean forever re-syncing?  How long has it been?  Are you rebooting?  Is the percentage not incresaing?  (I just did this today on an old P3 and had no problems.
Lee W, MVPTechnology and Business Process AdvisorCommented:
You cannot EXTEND a C: drive or the physical disk that contains the boot/system partition.  You CAN Mirror it - I've done it dozens of times.

EXTEND = Grow in size, add another disk or part of disk to make the disk appear larger.
MIRROR = Make an exact copy to another disk.

The disk you are trying to mirror to MUST be RAW (Dynamic, but RAW - no partitions defined - or at least, enough RAW space to accomodate the partition you want to mirror on the other disk.
danomaticAuthor Commented:
The "Add Mirror" feature is greyed out on the C Drive.

I have had these same two drives mirrored before on this server but since I have reinstalled windows, on this new install, it doesn’t seem to be possible.

I don’t know what I did differently on this install than I did on the previous.
danomaticAuthor Commented:
Well, I finally created the mirror but now it seems the two disks are forever “re-syncing” It seems to be holding the rest of the system up.

Is there a way to set a preference to only re-sync when I want it to in Disk Managment?
danomaticAuthor Commented:
Ok, I just realized that I was doing all the Windows security updates and rebooting fairly often. Good point about re-booting then.  

Since the computer has now been on for the longest span yet, it seems to have now finished.  -- thanks
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