Thanks!

I forgot to mention that we want to use WebRTC in the near future as well. Is there anything special I have to consider for that?

So you basically think the IO for recordings is going to be the main bottleneck?
I am not entirely sure I can do transcoding at the storage server but I'll look into it.

As I understand it FSW has to do some sort of transcoding when mixing two channels to record them? Is it possible / would you recommend   to record to g711 (I think this is the used codec)? And then later transcode it to mp3 for long time storage?

What other bottlenecks am I looking at? What are some usual performance problems and when do you usually encounter them?
My initial idea was to go with a modern multi core Intel Xeon processor and multiple network interfaces. Is the next thing to focus on storage performance?

Oscar


On Wed, Jun 4, 2014 at 9:27 PM, Guillermo Ruiz Camauer <grcamauer@gmail.com> wrote:
I would concentrate on the disk side of things with a good stripe or RAID of SSDs.  Or, just add enough RAM (say 64GB) and make a large enough tmpfs/RAMdisk partition to store your recordings before transcoding and shipping them off to the storage server.  Just make sure to have UPS backed power. 
  Can the transcoding be done on the storage server (they usually have lots of spare CPU cycles)?  Separate network adapters for VoIP and storage would also be good.  
I would go with a CPU with 4 cores.

Testing will always be the final answer.

Guillermo  


On Wed, Jun 4, 2014 at 3:30 PM, Michael Jerris <mike@jerris.com> wrote:
Not a whole lot of cpu from any modern non embedded processor can probably handle this.  Test to see exactly how it behaves with your exact requirements. Sound card would do nothing at all for transcoding, thats all cpu.

Mike

On Jun 4, 2014, at 6:20 PM, Oscar Franzen <oscar.franzen@advisa.se> wrote:

Hi!

I'm looking for some help with hardware for a production setup of freeswitch. I need at least 150 concurrent calls, but would prefer to buy a server which can handle more to facilitate growth.

I am looking at using the same codec (i think it is g711) for both legs of the call. I want to record all calls. Either to whatever codec and then transcode them separately or directly to mp3/ogg. I am going to use ESL to control FSW and also listen to most events over the socket.

What would you recommend for hardware? Is it recommended to buy a sound card for transcoding or just buy enough CPU? I will probably run from SSD, record to same SSD or other local disk and continuously move recordings to external (network) storage.

So:
150 concurrent calls
~10 initiations/second
mod_event_socket - for control and events
A limited amount of eavesdropping
recording (either to original codec or ogg/mp3)
Some "standard" modules.

Regards
Oscar

_________________________________________________________________________
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--
Guillermo Ruiz Camauer

_________________________________________________________________________
Professional FreeSWITCH Consulting Services:
consulting@freeswitch.org
http://www.freeswitchsolutions.com

FreeSWITCH-powered IP PBX: The CudaTel Communication Server
http://www.cudatel.com

Official FreeSWITCH Sites
http://www.freeswitch.org
http://wiki.freeswitch.org
http://www.cluecon.com

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--
Regards
Oscar Franzén
Developer



Advisa
oscar.franzen@advisa.se
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Kungsgatan 30, Stockholm
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