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Hyper-V manual merge order

Posted on 2014-04-23
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Last Modified: 2014-11-12
Hello experts.

Situation.

I have a hyper V machine with 5 snapshots.

Because I have run out of space on my drive, I have to do a manual merge on a different machine. The machine is actually a production box and I cannot bring it offline for the amount of time that it will take to do the merge. My question is the following.

Lets set I have 5 snapshots in this order

CDRIVE.VHD
CDRIVE1.avhdx
CDRIVE2.avhdx
CDRIVE3.avhdx
CDRIVE4.avhdx
CDRIVE5.avhdx

Can I merge CDRIVE4.avhdx to CDRIVE3.avhdx and continue the merge until I am left only with CDRIVE.VHD and CDRIVE5.avhdx.

and then merge CDRIVE5.avhdx to CDRIVE.VHD?

The reason for this is to minimize the downtime on the box

I am not sure if my question is unclear, if you need further clarification, please let me know
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Question by:FutureDBA-
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Accepted Solution

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Andrew Hancock (VMware vExpert / EE MVE^2) earned 2000 total points
ID: 40018959
The snapshot AVHD is related to other snapshot AVHDs through a parent-child relationship. Snapshots are children of parents in a hierarchy or tree.

so, if 5 is the child of 4, which is the child of 3, which is the child of 2, which is the child of 2, which is the child of 1.

if you were to delete 4 (5 could not exist, because there would be no link between 5 and 3!).

5 will also disappear, because it's related to 4.
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