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
Solved

Recovering Data from Windows Server 2012 R2 Virtual Disks with Failed Disk (VMDK)

Posted on 2014-11-06
3
734 Views
Last Modified: 2016-11-23
I have a Windows Server 2012 R2 File Server that is a VM off on a VSAN cluster Host running ESXi 5.5. The Server consisted of 4 Physical Disks, and 1 Virtual DIsk that combined 3 Physical Disks together.

   1) Physical OS Disk 100GB (C: Drive)
   2) Virtual File Share Disk 5.25 TB (D: Drive) - Configuration is Simple
     2a) Physical File Share Disk-1 1.75 TB
     2b) Physical File Share Disk-2 1.75 TB
     2c) Physical File Share Disk-3 1.75 TB

The VMDK for Physical Disk 2c was deleted and is deemed unrecoverable. That's fine, I'll make do. What I am curious about is how I can try to recover any data from the remaining 2 Physical Disks from the Virtual Disk on Windows Server 2012. I have attempted disk repair and other Powershell commands and methods described by numerous articles, none of which have done anything. Is there a way I can try to recover anything from these two disks that doesn't involve paying out the nose to some company that may or may not have any idea how to accomplish this?

The added complexity here is that the Datastore in question is a VMware VSAN, which according to nearly every source I have encountered has stated that as cool as the VSAN is, it is unforgiving when it comes to recovering data from it, which is why the impetus for me has been recovering anything from the two disks versus chasing my tail trying to get the deleted VMDK back. Below is the configuration of the Host equipment that houses the File Server.

3 - Dell PowerEdge 720XDs,
    HDD - Each host has 5 - 4 TB 7200rpm SATA Disks
    SSD - Each host has 1 - 960 GB SSD
0
Comment
Question by:derekrmoore
3 Comments
 
LVL 119

Assisted Solution

by:Andrew Hancock (VMware vExpert / EE MVE^2)
Andrew Hancock (VMware vExpert / EE MVE^2) earned 166 total points
ID: 40427498
If this was the configuration.

1 Virtual DIsk that combined 3 Physical Disks together.

If the data is important, stop what you are doing and escalate and call Kroll Ontrack.

http://www.krollontrack.com/

(and as for vSAN, it's very early days!)
0
 
LVL 31

Assisted Solution

by:Frosty555
Frosty555 earned 167 total points
ID: 40427758
You're in big trouble here. You essentially had the virtual equivalent of a RAID0 array of three disks, and you lost the third disk.

If the D: drive was a spanned volume created in Windows, the saving grace here is that the data is written sequentially to the disks, unlike RAID-0 that stripes/interleaves the data evenly across all three disks. So there's some potential to recover *some* amount of logical data from the remaining two disks.

But you need professional data recovery services if the data is important.
0
 
LVL 1

Accepted Solution

by:
Ron Martin earned 167 total points
ID: 40427764
If these are stand-alone volumes, you can use Windows VMDK reader tools to get the data off the disks by using windows tools  
http://www.running-system.com/how-to-mount-a-vmdk-file-under-windows/

OR, you can attach the vmdk's to other servers and then move the data.

but if you used any raid in the vm then yes you may be at a loss. (why anyone would build a virtual raid array is beyond me)
0

Featured Post

Netscaler Common Configuration How To guides

If you use NetScaler you will want to see these guides. The NetScaler How To Guides show administrators how to get NetScaler up and configured by providing instructions for common scenarios and some not so common ones.

Question has a verified solution.

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

In this step by step tutorial with screenshots, we will show you HOW TO: Enable SSH Remote Access on a VMware vSphere Hypervisor 6.5 (ESXi 6.5). This is important if you need to enable SSH remote access for additional troubleshooting of the ESXi hos…
Teach the user how to use vSphere Update Manager to update the VMware Tools and virtual machine hardware version Open vSphere Client: Review manual processes for updating VMware Tools and virtual hardware versions: Create a new baseline group in vSp…
This Micro Tutorial steps you through the configuration steps to configure your ESXi host Management Network settings and test the management network, ensure the host is recognized by the DNS Server, configure a new password, and the troubleshooting…

791 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