unable to extend the C partition of a mirrored disk.

Posted on 2014-11-14
Last Modified: 2014-11-14

I am trying to extend the partition of the C drive of my Windows 2008 server but not able to.  

The C drive is currently mirrored - please see the screen shot.

Please advise how I can do this.

Question by:nav2567
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LVL 54

Expert Comment

ID: 40443188
Screenshot is missing. Error messages are, too.
Please retry.

Author Comment

ID: 40443200

Author Comment

ID: 40443205
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LVL 54

Assisted Solution

McKnife earned 334 total points
ID: 40443208
Could it be that "extend" is greyed out? Then it's not possible without breaking the mirror, first. But that does not hurt. Break the mirror, extend one of those two and recreate the mirror (will need the second disk emptied).
LVL 34

Assisted Solution

by:Seth Simmons
Seth Simmons earned 166 total points
ID: 40443245
you can't extend a mirrored volume
the only extend options for a dynamic disk is for simple or spanned volumes

Working with Basic and Dynamic Disks

Author Comment

ID: 40443371
If I break the mirror, should I do "Remove Mirror" or "Break Mirrored Volume"?
LVL 54

Accepted Solution

McKnife earned 334 total points
ID: 40443383
Remove mirror, see
Once you remove a mirror from a mirrored volume, the removed mirror becomes unallocated space and the remaining mirror becomes a simple volume that is no longer fault tolerant. All of the data on the removed mirror is deleted.
That's what we need.

Author Closing Comment

ID: 40444066
Thanks a lot, guys.

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