Re: [ovirt-users] VDI non-persistant desktops

[Colin Coe]

Hi and thanks for the reply.

Not really what we're after.  We want the stateless VMs but we want to be
able to work on the template (patch, install addtional software, etc) and
have those changes flow through to the existing VMs based on these
templates.  In addition, when the VMs are refreshed based on the updated
template, we need the MAC addresses to persist (as we define all our leases
in DHCP).

Thanks

On Sun, Jan 31, 2016 at 5:27 AM, Sigbjorn Lie  wrote:

> Hi,
>
> We've had the same experience as you with vm pools and have moved away
> from vm pools to non-pool vms and manual assignment for Windows vms. We
> have an open ticket with RH support for enabling stateful vm pool. This is
> the bugzilla entry if you’d like to add your interest for the stateful vm
> pools feature: https://bugzillaredhat.com/show_bug.cgi?id=1234394
> 
>
>
> Regards,
> Siggi
>
>
> On 29 Jan 2016, at 13:20, Colin Coe  wrote:
>
> Hi all
>
> We're using RHEV 3.5.7 and have about 40 desktop VMs that are all clones
> from a single original.
>
> In the very beginning we used desktop pools but this was torn down when we
> started getting "The trust relationship between this workstation and the
> primary domain failed" error messages.
>
> We use DHCP for all desktops however every VM is defined on the DHCP
> server and unknown MACs are rejected.
>
> I'd like to revisit desktop pools but I'd like to know if other are using
> this and what their experiences have been.
>
> Kind of thing I'd like to know is
> - how is patching done
> - what is the performance like
> - what tuning if any is done on the desktops
> - GPO vs LPO
>
> Any comments?
>
> Thanks
>
> CC
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>
>
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Re: [ovirt-users] VDI non-persistant desktops

[Sigbjorn Lie]

Hi,

We've had the same experience as you with vm pools and have moved away from vm 
pools to non-pool vms and manual assignment for Windows vms. We have an open 
ticket with RH support for enabling stateful vm pool. This is the bugzilla 
entry if you’d like to add your interest for the stateful vm pools feature: 
https://bugzilla.redhat.com/show_bug.cgi?id=1234394 



Regards,
Siggi


> On 29 Jan 2016, at 13:20, Colin Coe  wrote:
> 
> Hi all
> 
> We're using RHEV 3.5.7 and have about 40 desktop VMs that are all clones from 
> a single original.
> 
> In the very beginning we used desktop pools but this was torn down when we 
> started getting "The trust relationship between this workstation and the 
> primary domain failed" error messages.
> 
> We use DHCP for all desktops however every VM is defined on the DHCP server 
> and unknown MACs are rejected.
> 
> I'd like to revisit desktop pools but I'd like to know if other are using 
> this and what their experiences have been.
> 
> Kind of thing I'd like to know is
> - how is patching done
> - what is the performance like
> - what tuning if any is done on the desktops
> - GPO vs LPO
> 
> Any comments?
> 
> Thanks
> 
> CC
> ___
> Users mailing list
> Users@ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users

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Re: [ovirt-users] VDI non-persistant desktops

[René Koch]

Hi Colin, 

I normally use desktop pools for virtual machines, which are the same, and 
single desktops for individual vms. 
So mostly office vms are from a pool and admin vms aren't. 

For patching you can either use some tools like Microsoft WSUS or for Linux vms 
Katello/Satellite/... or if you're using desktop pools it's also possible to 
patch the master image, create a new template with a new version and shut down 
all you vms. Afterwards they should boot with the new version if you did 
configure to always use the lastest version. 

Performance of the virtual desktops depends on some things: 
- protocol (Spice is really great in our tests) - also make sure you install 
all VirtIO drivers in your vms 
- bandwith - this is no problem in the LAN, but for WAN setups this could be an 
issue. Watching full HD videos in your vms can require 40mbit/s... 
- thin clients - they need good graphics cards and at least 2gb ram and 2 cpu 
cores, better 4... 

Most of my customers use GPOs for their virtual desktops, as it's easier to 
configure group policies then updating the master template too often... 

I hope this helps... 


Regards, 
René 



From: "Colin Coe"  
To: Users@ovirt.org 
Sent: Friday, January 29, 2016 1:20:15 PM 
Subject: [ovirt-users] VDI non-persistant desktops 

Hi all 
We're using RHEV 3.5.7 and have about 40 desktop VMs that are all clones from a 
single original. 

In the very beginning we used desktop pools but this was torn down when we 
started getting "The trust relationship between this workstation and the 
primary domain failed" error messages. 

We use DHCP for all desktops however every VM is defined on the DHCP server and 
unknown MACs are rejected. 

I'd like to revisit desktop pools but I'd like to know if other are using this 
and what their experiences have been. 

Kind of thing I'd like to know is 
- how is patching done 
- what is the performance like 
- what tuning if any is done on the desktops 
- GPO vs LPO 

Any comments? 

Thanks 

CC 

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