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
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

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?
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.

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
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
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Windows 2000

From novice to tech pro — start learning today.