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Problem setting up a new shadow copy on a volume

Posted on 2012-03-27
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Last Modified: 2012-06-21
I am trying to set up shadow copies on a volume but cannot select the correct volume in the storage area.

I have a volume assigned to the drive letter F:  I select the setting to assign the limit and the location.  I would usuually store the shadow copy on the same volume.  The drop down does not list my volume.

I have attached a print screen of the setting for the volume.
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Question by:TmakiWITC
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Expert Comment

by:Geodash
ID: 37774116
No screenshot attached
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Expert Comment

by:dave4dl
ID: 37774129
Try using hobocopy.  Download here: https://github.com/candera/hobocopy
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Author Comment

by:TmakiWITC
ID: 37774131
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Expert Comment

by:noxcho
ID: 37775880
Can you also post the screen shot of Windows Disk Management?
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Author Comment

by:TmakiWITC
ID: 37776498
This is a screen shot of the Disk Configuration
Disk-Config.JPG
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Expert Comment

by:noxcho
ID: 37776881
Delete F: and recreate it. Your partition is a mess. Look the size of it - 100MB? And disk layout says different size. This happens when PartMgr fails to update the partition info in Windows registry.
If you have data on F: drive then copy it out first.
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Author Comment

by:TmakiWITC
ID: 37776942
I will try this and post my results, thanks.   I need to do this after hours as it is in production.
 I did not see the 100 MB in the Disk Management screen.   I was always looking at the graphic representation and that is correct.
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Author Comment

by:TmakiWITC
ID: 37777541
I believe our problem is that we are using disk quotas of 100MB on the volume we cannot set up Shadow copy on.  It is fine if we remove the disk quota.  Once we add the disk quota back on we cannot add the shadow copy.  
I did remove the disk quota and created the shadow copy and then set the disk quota again without any problems.  But I am afraid that the shadow copy will have problems.  
Is there any documentation that explains the problem with setting up a shadow copy for a volume that will use disk quotas?
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Expert Comment

by:noxcho
ID: 37779202
What is the quota you set? Does it take half of the free space?
And btw, does the wrong size depiction change if you remove the quota?
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Author Comment

by:TmakiWITC
ID: 37779224
The quota is 100 MB, no it does not take half the free space.  Yes, it does correct the wrong size depiction when you remove the quota.  The wrong size changes to the quota size when applied.
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Expert Comment

by:noxcho
ID: 37779381
Interesting. I have test Win 2003 at work. Will check on it tomorrow if quoting makes the difference.
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Expert Comment

by:noxcho
ID: 37780628
The quota is 100 MB, no it does not take half the free space.  Yes, it does correct the wrong size depiction when you remove the quota.  The wrong size changes to the quota size when applied.
I set the quota on 40GB drive limiting the size to 100MB. And the drive in WDM shows as 40GB still. Plus it is available in Shadow Copies list. Try to delete and recreate it as I suggested before.
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Accepted Solution

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TmakiWITC earned 0 total points
ID: 37796934
We have four servers with the same configuration and they all had the same problem.  I really don't want to remove the volume and recreate it as it is being used.  
The other items that I should have mentioned are that these are Hyper-V virtual servers.  There are two clustered hosts with shared storage.  

I am not sure if this is a byproduct and the reason this is happening.  I have never seen it before except this situation.

Since we are already using the volume we set up the shadow copy to reside on a separate volume.  This seems to be working fine.

Thanks for the help!
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Author Closing Comment

by:TmakiWITC
ID: 37890897
I was not willing to test other solutiion and this work around seems to work just fine.
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