# Cloud Provider :: VDC or Groups
**URL:** https://forum.opennebula.io/t/cloud-provider-vdc-or-groups/3136
**Category:** Product Support
**Created:** [October 16, 2016, 1:31pm UTC](https://forum.opennebula.io/t/cloud-provider-vdc-or-groups/3136 "2016-10-16T13:31:23Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@ccesario](https://forum.opennebula.io/u/ccesario)
#### Post date: [October 16, 2016, 1:31pm UTC](https://forum.opennebula.io/t/cloud-provider-vdc-or-groups/3136/1 "2016-10-16T13:31:23Z")
Hi folks,
Reading the OpenNebula documentation, I 'm a bit confused provide resources to my End Users.
When choose VDC and when choose Groups/User with quotas?
In both I can usage quotas to limit resources to users.
Could someone with more experience share his knowledge about this!?
Thanks in advance!
Regards,
-Carlos
---
### Author:  [@Yenya](https://forum.opennebula.io/u/Yenya)
#### Post date: [October 17, 2016, 8:13am UTC](https://forum.opennebula.io/t/cloud-provider-vdc-or-groups/3136/2 "2016-10-17T08:13:28Z")
Hello,
I had a similar question in this thread:
> [@Groups, VDCs, or Clusters? Best practices wanted](https://forum.opennebula.io/t/groups-vdcs-or-clusters-best-practices-wanted/2184):
>
> Hello, I am a bit puzzled on when to use groups, and when VDCs or clusters (or even ACLs, but for most of my cases I have ruled them out so far). Some of my use cases are: the default group for which most of the resources would be accessible, mainly for temporary and experimental VMs. All users would be members of this group. The default ONe group “users” is probably what I want. some additional groups of users (I think the best way would be to represent them as ONe groups, but I am open …
As for me, the question is still not completely answered. If I understand it correctly, the main difference is that VDC is a group of resources (VNETs, hosts, datastores), and you can allow a group of users to access a VDC in one simple operation.
Some of my questions remains, though: for example, an user which is member of more groups (e.g. `bulk` and `production`) AFAIK cannot choose to which VDC will a newly created VM be deployed (e.g. to distinguish between testing and production VMs).
My intend is to give _all_ my users (students and faculty staff) access to at least some ONe resources, so that they can try things, deploy experimental VMs, etc. And then allow some of them (e.g. students enrolled in a particular course) access some more resources (e.g. access to the private VNET of that course, increased quota to accomodate for the resources needed in that particular course, etc.). So far I am not sure what is the best way to do it.
Hope this (at least a bit) helps,
-Yenya
---
### Author:  [@ccesario](https://forum.opennebula.io/u/ccesario)
#### Post date: [October 18, 2016, 3:32pm UTC](https://forum.opennebula.io/t/cloud-provider-vdc-or-groups/3136/3 "2016-10-18T15:32:50Z")
Hello @Yenya,
Thank you by your feedback.
Well, I understood yours comments, but I’m still confused wehehe. In my case My main idea it is focused to CloudProvider, and I think that I can limit a resources to one user or group using Quotas, and Using a VDC with quotas I will get the same result (I imagine this).
Best regards,
-Carlos