Solved

Hyperv VHD

Posted on 2013-11-13
6
48 Views
Last Modified: 2015-06-23
I am running hyperv 2008R2. Have a VHD which I want to reduce the size (not the physical but virtual size) because there is a lot of unused space in the VHD (running win2008R2).

Its a dynamically expanding disk. How do I return the free space to the physical hard drive?
0
Comment
Question by:sysadim
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
6 Comments
 
LVL 11

Expert Comment

by:Gregory Miller
ID: 39646737
0
 
LVL 58

Accepted Solution

by:
Cliff Galiher earned 500 total points
ID: 39646752
Expanding a VHD is trivial, but shrinking one is another story. There is no supported way, and even un the "unsupported, but works"  category, there is no method I trust. The chances of data corruption is just too high.
0
 
LVL 37

Expert Comment

by:Mahesh
ID: 39647335
0
 
LVL 20

Expert Comment

by:Svet Paperov
ID: 39647692
You have to compact the VHD file:
1. Shutdown the virtual machine
2. If you have snapshots you need to delete them and let the VHD merge before continuing
3. Open its Hyper-V Settings from the Hyper-V Manager;
4. Go to the Hide drive section and select Edit the VHD; Run Compact

Once compact is done your VHD will have the smallest size possible considering the data on it.

Since it’s a dynamic VHD with 2008 R2 there is no need to run defrag or Precompact (as for 2003) before compacting the file.
0
 
LVL 35

Expert Comment

by:Seth Simmons
ID: 40845793
This question has been classified as abandoned and is closed as part of the Cleanup Program. See the recommendation for more details.
0

Featured Post

The Eight Noble Truths of Backup and Recovery

How can IT departments tackle the challenges of a Big Data world? This white paper provides a roadmap to success and helps companies ensure that all their data is safe and secure, no matter if it resides on-premise with physical or virtual machines or in the cloud.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Restoring deleted objects in Active Directory has been a standard feature in Active Directory for many years, yet some admins may not know what is available.
After seeing many questions for JRNL_WRAP_ERROR for replication failure, I thought it would be useful to write this article.
This tutorial will walk an individual through the steps necessary to join and promote the first Windows Server 2012 domain controller into an Active Directory environment running on Windows Server 2008. Determine the location of the FSMO roles by lo…
With the advent of Windows 10, Microsoft is pushing a Get Windows 10 icon into the notification area (system tray) of qualifying computers. There are many reasons for wanting to remove this icon. This two-part Experts Exchange video Micro Tutorial s…

726 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question