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Extend the boot volume of Win2000/2003 Virtual Machine with “diskpart”

5 Novembre 2009

Extend boot volume on Windows Server 2000/2003

Before you begin, make sure that you do not have an active snapshot on the VM, extending a virtual disk with a snapshot will cause corrpution

Extend the boot volume of Windows Server 2003 Virtual Machine
To start, I have a Windows Server 2003 Virtual Machine that has a 5.3G disk allocated to it, I need to expand this disk to 10G.

Step 1: Power off the virtual machine that holds the boot volume that you want to extend.

Step 2: Make a backup copy of your virutal disk, this is optional but if you mess up don’t call me unless you’re willing to pay.

Step 3: From the service console, increase the size of the .dsk or .vmdk virtual disk file. This can also be accomplished through the Virtual Infrastructure Client if you are using VirtualCenter 2.x+.

[root@esx-test local]# ls -lah test.vmdk
-rw-------    1 root     root         5.4G Jul 18 13:57 test.vmdk

Extend the virtual disk with vmkfstools. The input to the -X switch is the size that you want the disk file to be not the size you want to extend the disk file by.

[root@esx-test local]# vmkfstools -X 10G test.vmdk

View the new size of test.vmdk

[root@esx-test local]# ls -lah test.vmdk
-rw-------    1 root     root          10G Jul 18 13:57 test.vmdk

Step 4: For this step you will need an additional Virtual Machine running Windows Server 2003. Power off the second Virtual Machine, and add the disk from the first Virtual Machine to it through the mui. Power up the second Virtual Machine and verify that the imported disk has unallocated space on it.

From the run menu type “diskpart.exe” to enter the command line utility to resize disk partitions in Windows Server 2003.

The command list volume will show you all the available volumes. Select your volume as shown below. select volume 1 corresponds to the “D” volume that I want to exntend. Finally extend the volume with the extend command.

If all goes well, the partition will be immediately exnteded under the Disk Management snap in.

Step 5: Shut down the second Virtual Machine and remove the disk from the second Virtual Machine. Power on the first Virtual Machine and check out your new space.

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VMware ESX vSphere resize disk with “extpart” (Dell)

5 Novembre 2009
VMware ESX vSphere resize disk

Every now and then I need to resize (usually extend/enlarge) a disk attached to a Virtual Machine. I have tried several methods to do this over the years (including combinations of VMware Converter, third party partition manager apps, diskpart etc) but none have been as efficient as the method I discovered during recent VMware training for my VCP4 exam.

One of the new features of vSphere is the ability to resize disks without having to shut down the Virtual Machine. This was previously impossible in VI3. This greatly speeds up the resizing process which can be executed in a couple of stages:

1) Use the vSphere Client to edit the settings of the Virtual Machine in question. Select the hard disk and modify it’s provisioned size as appropriate. Click OK to apply these changes – resizing the .vmdk file.

resize1.png

2) Verify that the .vmdk has been resized by opening the Management Console -> Disk Management to find the unallocated space on the disk that resides in the .vmdk (distinguished by the black colour in the legend at the bottom.) In this case you can see I have increased the size by 5GB.

resize2.png

Right click on the disk (in this case ‘Disk 0’) and select properties. On the Volumes tab make a note of the unallocated space, in my case it is 5122MB.

resize3.png

Download Dell’s EXTPART and extract it on the server that contains the disk you want to resize. Navigate to c:\dell\ExtPart (the default extracted location) and run extpart.exe. When prompted enter the the Windows drive letter of the disk on the Virtual Machine e.g. c:. When prompted for the size to extend the partition by enter the number noted down earlier (I used 5122 in this example.) After doing so the disk should be resized. You can check this by opening the Management Console -> Disk Management and verifying the size of the partition.

resize4.png

NB – If you receive the following error:

“Unable to connect to c: or it does not exist”

There are a couple of workarounds that you could try.

1) Close the Management Console (if it is open) and try extpart.exe again.

2) Try restarting the VM in safe mode and then run extpart.exe. This is not ideal but it is still easier than other methods I have tried to resize .vmdk files.

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