ASL and Load balanced Servers

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proinagltd1
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ASL and Load balanced Servers

Unread post by proinagltd1 »

Hello

I've been using ASL for a great number years now. We are moving to Load balanced server solution. Not sure which servers I can or should install ASL on? Plus are licences for Virtual and as the physical?

Two Load Balancers (Setup in Failover)
These would be installed running Nginx, HA Proxy and Keepalived. These load balancers are only configured in failover and have one WAN IP that “floats” between both servers depending upon availability. Clients of your application would connect to this IP/Used in your DNS and the request would be forwarded via Nginx to the webservers. If one load balancer goes offline then the “floating” IP is automatically moved to the second load balancer and automatically switch back to the primary load balancer once it is restored.
- Minimum of Two Web Servers (Load Balanced Failover)

The webservers would be installed/configured with apache and mod_rpaf to receive connections from the load balancers.

- Minimum of Two Database Servers (Active – Active Load Balanced Cluster)

mySQL would be setup with Master-Master replication and load balancing.
Dedicated Server A – Installed with XenServer as the Host OS and three virtual machines/separate centos installs for: web; mysql; load balancer;
Intel Quad Core Xeon E3-1230 v5 3.30Ghz
64Gb DDR4 ECC Memory
4 x 250Gb Hard Drives in RAID 10
LSI RAID Controller

2 x 1000Mbit Network Ports

Dedicated Server B – Mirror of Server A

Kind Regards

Graham
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