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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