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Resize Independent Disk

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Hello

I'm using independent disks for the first time.  I've been able to create, attach and detach disks without any problems.  I am having problems when I try to increase the size of a disk.  I'm following the instructions here: Update an Independent Disk‌  and I'm trying to increase the size of a detached disk from 50Gb to 100Gb.

The vCloud API accepts the PUT request with the new attributes but the size of the disk doesn't change.  When I check on the task in vCloud, it has run successfully.  You can also see a Reconfigure VM task has run against the disk shell VM in vCenter but it doesn't make the change to the disk size.  If I change the name of the independent disk instead, that change seems to take affect without problem - the Reconfigure VM task runs, the disk shell VM changes name and a GET on the disk object in vCloud API shows the new name.

I'm stumped here....   I can't see any errors when I make the request, the task run successfully, the are no errors show in vSphere Client and I can't find any related errors in the vcloud-container-debug.log file.

Does anyone have any experience of this?  Any advice/assistance?

thanks

Dave

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So, the reason I was not able to resize the Independent Disk was that I am on vCloud Director 5.6 and the ability to resize independent disks was not introduced until vCloud Director 8.

Dave

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A quick update...

I thought I would try to increase the size of the Independent Disk while it was attached to a production VM.  I did this in the same way you would increase a disk on any VM (a PUT request with a new copy of the VirtualHardwareSection) but it threw an error of "The attached disks on VM 'MyVM' cannot be modified.".  I thought it might be the case, but this confirms that Independent Disks must be detached from a VM before they can be increased, which is a bit of a shame.

Still, the original question still stands.... why isn't vCloud Director increasing the disk size when I do so on a detached disk, despite the task appearing to complete successfully?

Dave

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I'm in danger of answering my own question here, but for the benefit of anyone who ends up via through Googling...

I've just re-read the documentation at Create or Update an Independent Disk and it says:

"To create an independent disk, you must specify its name and size. You can optionally include a description and specify a storage profile to be used by the disk. After you have created the disk, you can modify its name, description, and storage profile. "


It doesn't actually say here that you can increase the disk size - so perhaps you can't.  I think I might raise it with VMware Support to see if they can confirm either way.

Dave

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Hi,

Check this: Resize & Hot-Add/Extend Virtual Machine Disks using vCloud API - VMware vSphere Blog

Also looking at the VMware vCloud Director Cookbook may help. There is some good examples.

Hope this could help

JailBreak ICT Senior Infrastructure Engineer Tech Lead for VMware / Virtual Backups If helpful Please award points Thank You Technical Articles: Blog: www.provirtualzone.com | Twitter: @Luciano_PT
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So, the reason I was not able to resize the Independent Disk was that I am on vCloud Director 5.6 and the ability to resize independent disks was not introduced until vCloud Director 8.

Dave

View solution in original post

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