4PSA VoipNow Professional® 1.6.4
High Availability Setup Requirements

Manual Version 41859.8 at 2007/11/06 12:00:18

For suggestions regarding this manual contact: docs@4psa.com

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Table of Contents

Hardware Requirements
OS Compatibility
Server Installation
Networking
What's Next?
Contact Information
5 minutes
It will take about 5 minutes to an intermediate user to read this document and follow the steps highlighted here.

Hardware Requirements

For setting up 4PSA VoipNow Professional in High Availability mode you need two identical servers (same vendor and model) with the same hardware configuration. The minimum suggested hardware configuration for each server is:

  • Intel x86 compatible PC server 3Ghz clock speed / IBM PowerPC server with 1.6Ghz clock speed
  • 1024 megabytes (MB) ECC memory or more
  • 72 GB RAID storage system or more
  • UPS power backup

OS Compatibility

The two servers prepared for the HA setup must have installed one of the following operating systems, supported by the 4PSA VoipNow Professional High Availability mode:

  • Redhat Enterprise Linux Server 5.0 (i386/x86_64)
  • Redhat Enterprise Linux (AS/ES) 4 (i386/x86_64
  • CentOS 5.x (i386/x86_64)
  • CentOS 4.x (i386/x86_64)

Caution

Do not install 4PSA VoipNow on any of the servers, only the operating system is required. Do not install the operating system on these servers using the 4PSA VoipNow ISO image.

Server Installation

In order to prepare the server OS installation for High Availability, install the operating system from the Linux distribution CD. Follow the installer setup and partition the hard disk as below:

  • /boot - 200 MB
  • / - 5 GB

The rest of the disk can be left unpartitioned. In case you do not add a partition on it, the number of free blocks available should be the same on both servers, or disk space will be lost.

It is very important to make sure that the server is not using a cheap (non-hardware) RAID controller card. If you want to setup a RAID storage system on the servers in the cluster and you have installed such a card, you should use instead the Linux RAID project.

Networking

Both servers must be wired to the same physical network, in the same switch if possible. The connection to the switch must be at least for 100 Mbit/s, 1Gbit/s being recommended. Requirements list:

  • three routable IP addresses, all in the same network should be available
  • no network level filtering between servers must take place

What's Next?

Contact 4PSA technical support team in the Help Desk at:

http://help.4psa.com

They will be able to perform the High Availability setup on the provided servers.

If you have any problem during the prerequired steps, do not hesitate to contact us.

Contact Information

Development office:

Rack-Soft SRL
DCL Office Building, 20-22 Bilciuresti Street, sector 1
Bucharest, 014012
ROMANIA
Phone: 646-957-8997 (US), 021-3130165 (Romania)
Fax: 270-638-0988 (US), 021-3130165 (Romania)

E-mail: