Can I boot off a dynamic disk in W2K

Hello,

This question stems out of pure paranoia... I have a single system disk in W2K SP4.  I want to mirror it onto another drive.  Realizing that I have to first change the disk to "Dynamic", will I still be able to boot W2K off the dynamic drive?  (W2K is the only OS installed).

What does changing a disk to Dynamic actually do?

quiTechAsked:
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Lee W, MVPTechnology and Business Process AdvisorCommented:
Yes, you can feel free to convert the disk to dynamic.  MOST of the times, it's safe.  I did have a problem once which Microsoft assisted me in solving be reverting it back to Basic without losing data.

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Jay_Jay70Commented:
http://www.microsoft.com/windowsserversystem/storage/storgloss.mspx#D

there is microsofts deff or a dynamic disk, i have plenty of systems that boot of dynamic disks and i have never had an issue
Lee W, MVPTechnology and Business Process AdvisorCommented:
The system I had an issue with was an IBM Blade with a recent install of 2000.
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Lee W, MVPTechnology and Business Process AdvisorCommented:
But, in every other instance, I've not had a problem.
rindiCommented:
You can get issues with the boot.ini file which may be pointing to partitions that don't exist anymore, but by editing the boot.ini file to reflect the changes between a basic disk and a dynamic disk it should be no big deal.
quiTechAuthor Commented:
Quick follow-up question regarding the boot.ini file:

I keep hearing that in a mirrored set, if a drive fails, the boot.ini needs to be changed to reflect which drive you want to boot from.  How is this done?  

I'm assuming if a drive fails, the system will be down.  How do you change the boot.ini file if you need to boot the system first?  Maybe I'm missing something...?
rindiCommented:
With raid 1 (mirror) if 1 drive fails, the system should still run...

If you need to change a boot.ini or other file and the system is down, you will have to boot with some other, possibly parralel installed OS from another HD, or from a LiveCD, like knoppix or similar, which contains all the necessary drivers to be able to access the Disks.
quiTechAuthor Commented:
Let's say the system is down after a drive failure.  Would it work to physically move the working drive to replace the dead drive?  Or is there something stored on the disk that tells it that its Disk 1 instead of Disk 0?
rindiCommented:
Why would you want to replace the failing drive with the working one? What you'd need to do is to replace the bad disk with a good one, but there is no need to move the other disk. While the bad disk is out of the system you can still work as before just with the good disk.

Some hardware raid controllers do store the HD ID's in their system.
Jay_Jay70Commented:
wwe use a mix of software raid and hardware raids over the last few years

not once when a drive has failed using simple windows RAID1 have we had to touch the Boot.ini file, this is manily becoz we use SCSI controllers and let them look after themselves after setting the jumpers
Jay_Jay70Commented:
i thought this question was answered by Leew in the first post and backed up by myself and rindi further down

Jay_Jay
quiTechAuthor Commented:
Sorry for the delay in closing this question.  I tried to allocate the points as fairly as possible based on who responsed first and the amount of information contributed by each of you.  Hopefully this is acceptable.

Thanks for all replies!
Jay_Jay70Commented:
cheers mate
rindiCommented:
thanks
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Windows 2000

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