Needed Hardware for 2600 Extensions

Hardware compatability

Requirements for the project are to find a possible server configuration that should be able to cope with 2600 extensions usage. We must take into account that each extension will use gloCOM and have a deskphone as well.

Since time was a limited resource and the fastest server that we had was the HP DL360 G7, we decided to use that server as a quick testing scenario where we would try to come as close as possible to the technical setup needed for the project. Once we had the minimum needed result numbers, we could now compare to some use cases with our servers and the performance of servers that are new on the market.

G7 specs are as follows:

  • CPU: 2x Intel(R) Xeon(R) CPU L5630 @ 2.13GHz (4 core/8 threads)
  • RAM: 24GB DDR3
  • DISKS: Combined 500GB of space SAS drives
  • OS: Serverware 3.0 with 1 PBXware 5 VPS instance

This server managed to run approximately 750 extensions with a  total of 230 calls, 750 gloCOM connections, 15 SIP registrations per second, and 375 OPTION packets per second. This was all done on one VPS.

Bicom Systems has a production server with about 3700 extensions split between 24 VPSs with maximum number of extensions per VPS at 750. Keeping in mind this server is running older versions of Serverware and PBXware, with much less features than our newly available versions. The configuration of said server is:

  • CPU: 1x Xeon D-1541 with 8 cores
  • RAM: 32GB
  • DISK: 1x 1.6TB SSD
  • OS: Serverware 1.9 with 24 PBXware 4 instances

Now, taking into account the new Xeon CPUs, which perform much better than servers such as the G9 and G10, we came to a possible configuration that will satisfy project needs:

  • CPU: 2x Xeon E5 with 8 cores each
  • RAM: 32GB DDR4
  • Disks: if we consider recording considering you do not go under 1TB, the number of disks would depend on the type of Serverware. We would also recommend a solution with call recordings being stored on a Hard Disk Drive (HDD), while the system and all else that accompanies it be stored on a Solid-State Drive (SSD).

One thing that needs to be mentioned is that we can’t be sure if all of 2600 extensions would be able to coexist on a single PBXware VPS, so it is recommended to start out with one VPS and if you run into issues, split them into other VPSs. This should resolve those issues.

For more information, visit our wiki

Creator Bio:

Eldar Avdic,

UADs & Appliances Manager and Developer. Maintains Bicom Systems’ UAD support and keeping appliances up to date.

Dino Mesic,

UADs & Appliances Engineer and Developer. Develops support for UADs, maintain technical documentation and test new UADs and appliances.