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Domain Controller Down After Attempting Conversion to Dynamic Disk

Posted on 2009-05-16
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Last Modified: 2012-05-07
I added some drives to my raid 5 last night.  Upon attempting to convert basic to dynamic, the system now will not boot up.  It gets to the server 2003 splash screen then continues to get caught in a reboot loop.  I can't go into safe mode, directory restore mode.  I have 2 partitions, 1 for os, 1 for data.  It's server 2003 x64, R2.  What are my options and should my data still be intact????

Thanks in advance
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Question by:ryanropp
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9 Comments
 
LVL 11

Expert Comment

by:Paolo Santiangeli
ID: 24402159
Hi,
did the conversion process work? Or the system restarted before completing it?
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Author Comment

by:ryanropp
ID: 24402186
Came back and said it couldn't restart.  I looked in disk manager and it showed it as dynamic but no partitions yet.  I could however see all my data.  I restarted myself and thats when the reboot loop started.  So i'm not sure if it finished or not.
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LVL 11

Expert Comment

by:Paolo Santiangeli
ID: 24402220
You should try to boot from a recovery console and check for your data and partition scheme:
http://support.microsoft.com/?scid=kb%3Ben-us%3B326215&x=11&y=13

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Author Comment

by:ryanropp
ID: 24402245
I did that.  It shows partitions as dynamic, however, there are no drive letters associated but shows the proper amount of space.  Should I attempt to repair from setup cd's?  Remember, this is my domain controller as well.

Thanks for your help, i'm in all out panic mode right now as you can imagine.
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LVL 11

Expert Comment

by:Paolo Santiangeli
ID: 24402306
you can test your partition with this:
http://www.cgsecurity.org/wiki/TestDisk

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Author Comment

by:ryanropp
ID: 24402499
How do i run if I can't boot to windows??
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LVL 27

Expert Comment

by:bluntTony
ID: 24403153
Is your RAID 5 hardware?

Unfortunately it might be time to break out your backups and restore the system. This is probably going to be the simplest solution. Conversions to dynamic disks always has an element of risk, especially on top of hardware RAID, and should never ever be performed without first doing a backup for this reason.

I've had a server go bang on me a while back after rebooting from a conversion and my only option was to restore from backups, after advice from support.

If your RAID is controlled by hardware, why would you need dynamic disks anyway?
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LVL 11

Expert Comment

by:Paolo Santiangeli
ID: 24403179
you should boot from a boot cd:
http://www.cgsecurity.org/wiki/TestDisk_Livecd
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Accepted Solution

by:
ryanropp earned 0 total points
ID: 24508861
I called microsoft and we ran the disksave program and backed up my mbr.  We then edited the mbr to tell the system on boot up that it was still a basic disk.  This allowed the system to boot up fine leaving all data intact.  It seems that I forgot to reboot first after the raid reconfiguration before attempted to convert to dynamic, which I've now learned to never try :)....
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