*Hey guys!*

Thanks for all your responses.    We've played heavily with ESXi -- but
before getting an Asterisk server with ESXi, I'm not ready to take a blind
leap of faith here without bench marks.  I don't mind swimming in a cold
water if I know there are others with me :).  But then again if there are
other options besides ESXi catered for Asterisk, then I'd liketo investigate
it.

During peak hours - we can hit 70+ simultaneous calls on ONE server alone.
We've also been receiving lots of requests for Virtual Asterisk Hosting
needs (plain vanilla Asterisk & FreePBX type).  So I need to keep an open
mind with Virtualization options for prospects & clients.

*Robert:   *If you are using software G729 transcoding - then forget ESXi.
If you are doing any form of transcoding, then forget ESXi.  If you are
doing call recordings & some sort of transcoding, forget ESXi.    If you are
running Asterisk on top of other VM's on the same ESX(i), that is running
Windows Servers, Application servers and ESX(i) - then forget it.

IF you **must** use PRIs in a virtual environment, then use foneBRIDGE (
http://www.red-fone.com/)  and make sure there is no transcoding going on.


*Hey Dave:  *Been a LONG while!   As per XEN, I've never used it - but I've
also heavily used Virtual Box.   Though I love Sun's Virtual Box compared to
VMWare Workstation - don't even think of deploying Asterisk on VirtualBox on
a production platform.   Trust me, as you always have :).

*Cheers!
Reza.*

-- 
Toronto based VoIP / Asterisk Trainer,
I.T. Consultant and Hosted PBX Solutions Provider.
+1-647-476-2067.
http://www.linkedin.com/in/seminar


On Wed, Mar 3, 2010 at 9:57 PM, Robert Brock <[email protected]> wrote:

> Odd, I had a lot of problems with ESXi.
>
> If I setup the asterisk server with just a firewall and asterisk server
> everything ran fine, Isolated nics for each app and network (internal, DMZ
> and external), worked fine, but as soon as you load more VM machines things
> started to go sideways. Call quality of recordings went weird, G729
> connections started to act like there was a lot of jitter on the line.
>
> I tried loading a test server on our ESX cluster and it was much much worse
> (60+ VM's).
>
> Also with ESXi you can't add PRI/PSTN cards, everything must be external.
>
> I couldn't see much point in running a production asterisk server as and VM
> on ESX - Handy for testing but not for production.
>
> I have also tried using ESX as a media server for Video and once more than
> 6 Vm were running on the ESX cluster video would get choppy for 1080P
> streams, it's like the network resource pools are being shared, even when
> nics are isolated to the specific VM.
>
> Robert Brock
> Telecom Administrator, MKS Inc., www.mks.com
> Waterloo, ON, Canada
> Tel: 519-883-3243 or 800-265-2797 x3243
> Fax: 519-884-8861
>
>
> -----Original Message-----
> From: Dave Donovan [mailto:[email protected]]
> Sent: Wednesday, March 03, 2010 9:27 PM
> To: Asterisk Users Group
> Subject: Re: [on-asterisk] VM ESXi on Asterisk Production Platforms.
>
> On Wed, Mar 3, 2010 at 3:34 AM, Reza - Asterisk Consultant
> <[email protected]> wrote:
> > Has anyone in here worked hands on with ESXi and Asterisk?    Would like
> to
> > hear your input and benchmarks, along with recommendations of other
> > alternatives that you may have placed at your data centre running
> Asterisk.
> >
> > Do you prefer ESXi or other alternatives?   If alternatives, then why?
>
> Reza,
>
> This is a timely post.  We just deployed Asterisk (PBX in a Flash) on
> our ESX 3.5 platform at our Mississauga office.  ESXi is just a
> skinnier version of ESX.
>
> It's a bit early to say much about long-term stability, but we've had
> no problems with Asterisk since deployment.  Fingers-crossed.
>
> During testing, we found we had choppy/poor quality audio on
> playback() operations like autoattendant.  It wasn't as bad with
> voicemail messages so we installed native sounds, hoping that avoiding
> GSM-ULAW transcoding would fix it.  It was improved but not great.  We
> applie a kernel patch to resolve timing issues that caused the choppy
> audio.  Now it's smooth as silk.
>
> Info on that patch can be found here: http://pbxinaflash.com/vm/
>
> We ran the code exactly as it appears near the bottom of the page.
> The only other thing we had to do was edit grub.conf to make the new
> kernel the default one.
>
> I imagine that you're looking at a hosted type of application so,
> unfortunately, I can't tell you much about scaling since we're running
> only one Asterisk instance and it's the only thing in the high
> priority resource pool.  It doesn't have to contend with any
> resource-intensive guests on the same machine.
>
> We chose VMware a couple of years ago for several reasons not related
> to Asterisk.  Since then I've heard good things about other platforms
> like VirtualBox and Xen but I have no first hand experience with them.
>
> Good luck with your project,
>
> Dave
>
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