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Mirror in Windows 2008

I have 2 disks and one of them has the OS on it.  They are both dynamic disks. I want to create a  mirror for the OS.  How can I do this?
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WellingtonIS
Asked:
WellingtonIS
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1 Solution
 
Lee W, MVPTechnology and Business Process AdvisorCommented:
Make the other disk an empty disk (NO PARTITIONS).  Right-click on it your main disk and the option to mirror should be there.  (Going from memory - don't have a system I can try this with at the moment).

And I assume you are wanting to do this as a software mirror instead of a faster, more reliable hardware mirror, right?
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WellingtonISAuthor Commented:
yes but when I click on the disk it's not giving me that option
disks.png
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Lee W, MVPTechnology and Business Process AdvisorCommented:
Please post a screen shot.  And remember - the second disk must be EMPTY - NO PARTITIONS!
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WellingtonISAuthor Commented:
I did.  I'm thinking I have to delete the system reserve?  Can I do that?
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Lee W, MVPTechnology and Business Process AdvisorCommented:
Didn't see the screen shot before.

Your problem is that your SYSTEM partition is on Disk 1 and the Boot and Windows install are on disk 2.  You CANNOT create a mirror because with the System partition taking 100 MB on disk 1, disk 2 is too big to mirror.
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WellingtonISAuthor Commented:
Can I delete the system reserve?
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Lee W, MVPTechnology and Business Process AdvisorCommented:
You would need to reinstall and put both the SYSTEM and BOOT partitions on the same disk.

You MIGHT be able to shrink the Boot partition by a couple hundred MB and then mirror it to the other disk... but this could wind up being tricky and certainly would be non standard.  Especially if this is a new install, wipe and reload and make sure you put everything on ONE disk then you can create your mirror of both the system and boot partitions on the other disks.
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WellingtonISAuthor Commented:
OK I shrunk the OS by 100 mb they are now equal.  I still cant mirror it.
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WellingtonISAuthor Commented:
OK so how can I install windows so I can mirror 2008 server?
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WellingtonISAuthor Commented:
windows key + X key does nothing.
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Lee W, MVPTechnology and Business Process AdvisorCommented:
If it's even ONE BYTE smaller then it's not going to work.  That's why I said shrink by a couple of hundred MB, not 100 MB.
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WellingtonISAuthor Commented:
I shrunk the OS by 100 mbs.  So it was exactly the same size.  i still could not mirror it
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WellingtonISAuthor Commented:
I did it again and it worked
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