Solved

Shrink a volume

Posted on 2016-09-16
3
66 Views
Last Modified: 2016-10-03
I have created a virtual machine in Vspere 6 having 3 partitions of total size 950 GB. Later I realized that I need to expand the volume beyond a certain limit, so I added another hard drive - Storage piece - everything works fine. One of my partitions - D drive - is now free and I deleted the volume. That space, aprox. 550GB is now un allocated. I want to free up this space from virtual hard disk - I followed the procedure to edit the vmdk file that I got from exchange expert which says that: -

Locate the vdmk files and we need to edit the *.vmdk, which is the descriptor file, which contains the variables for the size of the *.-flat.vmdk. Using cat, this is what the descriptor file contains
Then edit using vi xxxx.vmdk storage file. There will be an entry under the heading “#Extent description, after the letters RW, defines the size of the VMware virtual disk (VMDK).
For example, 40GB files will have an entry like 83886080 and the calculation is
40GB = 40*1024*1024*1024/512 = 83886080.
We wanted to reduce the size of the VMware virtual machine disk (VMDK) from 40 GB to 20 GB. So the value we need to enter into the descriptor file is:-

20 GB = 20 * 1024 * 1024 * 1024 / 512  =  41943040

Using vi, edit the descriptor file, and change the number from 83886080 to 41943040, and save the file.
Migrate or Copy the virtual machine to another datastore.

--------------------------------------------------------
I can see some flat and ckt files and I am not sure am I editing the right file or not. every time I get a error as attached. luckily I took the backup of the vmdk file and once I got the error I restored and all are back to normal.

My question is here, how I can shrink the volume which I am not able to use in windows. I want to free up the un allocated space in windows from Virtual machine hard drive.
VMWARE-Errorr.JPG
VMWARE-Errorr1.png
0
Comment
Question by:Sunny Sebastian
  • 2
3 Comments
 
LVL 118

Accepted Solution

by:
Andrew Hancock (VMware vExpert / EE MVE) earned 500 total points
ID: 41801227
Please follow my EE Article, this is a tutorial article, with step by step instructions, however remember this is unsupported.

only the vmdk descriptor file needs to be edited, not the ctk files.

HOW TO: Shrink a VMware Virtual Machine Disk (VMDK) in 15 minutes

this is the supported method of reducing the size of a vmdk (virtual disk)

HOW TO:  Resize a VMware (VMDK) Virtual Disk

this is the supported method of reducing the size of a vmdk (virtual disk)

Part 13: HOW TO: Shrink or Reduce a VMware Virtual Machine Disk (VMDK) using VMware vCenter Converter Standalone v5.5.2
0
 
LVL 118
ID: 41823487
do you require any more assistance to close out this question?
0
 

Author Closing Comment

by:Sunny Sebastian
ID: 41825938
ok good
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

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

HOW TO: Connect to the VMware vSphere Hypervisor 6.5 (ESXi 6.5) using the vSphere (HTML5 Web) Host Client 6.5, and perform a simple configuration task of adding a new VMFS 6 datastore.
HOW TO: Upload an ISO image to a VMware datastore for use with VMware vSphere Hypervisor 6.5 (ESXi 6.5) using the vSphere Host Client, and checking its MD5 checksum signature is correct.  It's a good idea to compare checksums, because many installat…
Teach the user how to use create log bundles for vCenter Server or ESXi hosts Open vSphere Web Client: Generate vCenter Server and ESXi host log bundle:  Open vCenter Server Appliance Web Management interface and generate log bundle: Open vCenter Se…
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…

914 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

Need Help in Real-Time?

Connect with top rated Experts

12 Experts available now in Live!

Get 1:1 Help Now