[Freeswitch-users] 2012 VoIP With Virtualization

Wed May 16 03:02:14 MSD 2012

Sorry for the delay...

For the setup in question:

The hardware:
IBM SystemX 3650.
8 core Xeons, E5*.
48GB RAM
Virtualization is done by VMWare ESXi, mostly 4 or 5.
Network is all Cisco.

3 VM Boxes that reach an average of 400 calls during working hours.
FreesSWITCH there is very old(1.0.6).
4 CPU Cores
2GB
64 bit Centos 5.2
local dialplan XML
no transcoding
xml_cdr
very stable.

Servers have several virtual machines with a lot of different things
running, FSs have priority on hardware resources...

We have some other VM boxes(FS Sep 2011) with less load(270 calls avg) that
do trancoding(25 calls avg g729<->g711), no quality issues but the FS clock
drifts a lot(up to 10 minutes a day), VMware's fault ->
http://www.vmware.com/files/pdf/Timekeeping-In-VirtualMachines.pdf
fsctl sync_clock solves the problem but might ruin CDRs so BEWARE!

There are several other VMs in quite a few hardware setups, but none of
them has impressive call volumes...

P.S.: Please don't shout at the age of the installs... they have served us
well! :D.

[ ]s,

Wesley Akio
TuntsCorp.com

On Tue, May 15, 2012 at 10:08 AM, Chris Mylonas <chris at opencsta.org> wrote:

> OK 400 calls is on the very high end of what I would have put on a VM.  If
> you wouldn't mind explaining your VM set up that would be great.
>
>
> On 15/05/2012, at 10:54 PM, Wesley Akio wrote:
>
> As said before, it depends heavily in your setup... We do virtualize
> FreeSWITCH and aside from a few glitches it has been good... We have approx
> 400 calls per VM. Later when I hit the office I can describe my setup in
> detail.
>
> Sent from mobile, sorry for the typos....
> Em 15/05/2012 09:42, "Saugort Dario Garcia Tovar" <dgarcia at anew.com.ve>
> escreveu:
>
>>  Hi, Chris
>>
>> That depend of your enviroment. First you have to take a sort of
>> scientific approach: define, trial and test again and again until the
>> result be consistent.
>> Second tell us about your enviroment:
>>     - Real hardware: the server that will run your vm. ¿Are blades, small
>> server, etc? VM software used (VMware, OpenVZ, XEN, Jails...)?
>>     - ¿How you set your VM? cpu, cpu cores, memory, disk, #nic?
>>     - ¿How many calls have you handle in the real world?
>>     - ¿Transcoding?
>>     - ¿Have you tested your VM?
>>
>> Virtualized enviroment for VoIP are growing. I am consultant for contact
>> center services, and I have receive a lot of questions about
>> virtualization. A solution provider can give some guidence about sizing and
>> technical considerations but at the end the final word is:  YOU HAVE
>> MAKE A LOAD TEST TO TEST YOUR ENVIROMENT AND IDENTIFY POSSIBLE ISSUES
>> BEFORE GO TO PRODUCTION!!!!
>>
>> Virtualization solutions will  do their homework to make VoIP a secure
>> option. Look this paper for wmware:
>>
>> http://blogs.vmware.com/performance/2012/01/voip-performance-on-vsphere-5.html
>> http://www.vmware.com/files/pdf/techpaper/voip-perf-vsphere5.pdf
>>
>> On 5/15/2012 4:42 AM, Chris Mylonas wrote:
>>
>> Hi FS Users,
>>
>> What is the consensus about using virtualized servers for real-time voice (RTP)?  Even up until a few years ago it was hard to guarantee the CPU cycles to the voice nodes.
>> Virtualizing the signalling (SIP) has always been favourable in terms of HA.
>>
>> If the entire host is under control, is it safe to say - we can virtualise voice?
>> Does it depend on what else is shared in the host - say it would be silly to put a high load database server on the same hardware node...
>>
>> Thanks for your inputs
>> Chris
>> _________________________________________________________________________
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>>
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>> -----
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>>
>>
>>
>> --
>> Atentamente,
>> *Dario García*
>> Consultor.
>>
>> CCCT, Nivel C2, Sector Yarey, Mz,
>> Ofc. MZ03a.
>> Caracas-Venezuela.
>> Teléfono: +58 212 9081842
>> Cel: +58 412 2221515
>> dgarcia at anew.com.ve
>> http://www.anew.com.ve
>>
>> _________________________________________________________________________
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>> consulting at freeswitch.org
>> http://www.freeswitchsolutions.com
>>
>> 
>> 
>>
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>> _________________________________________________________________________
> Professional FreeSWITCH Consulting Services:
> consulting at freeswitch.org
> http://www.freeswitchsolutions.com
>
> 
> 
>
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>
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>
>
> _________________________________________________________________________
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> consulting at freeswitch.org
> http://www.freeswitchsolutions.com
>
> 
> 
>
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>
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