Coyote Point Systems Equalizer User Manual download pdf

Coyote Point Systems Inc.

Equalizer VLB™ is Coyote Point’s virtualization enabled load balancing solution for VMware Infrastructure®

virtual server configurations.

The initial release of Equalizer VLB uses VMware’s management API to retrieve real-time virtual server

performance information from a VMware Virtual Center console that manages virtual machines running on ESX

Server (or from a single ESX Server directly). The additional server availability and resource utilization information

obtained from VMware allows Coyote Point’s Equalizer™ traffic management appliance to more efficiently direct

the traffic flowing to VMware virtual machines. The diagram below illustrates how Equalizer VLB works:

Equalizer extracts information from the Virtual Center console via the VMware API and load balances requests

across virtual machines using knowledge of what is going on inside each virtual machine. If there is only one ESX

Server in your configuration, Equalizer can also be set up to communicate directly with the ESX Server (instead of

Virtual Center), and load balance among the virtual machines defined on that ESX Server only.

Equalizer uses statistics such as the amount of memory in use by a virtual machine, the amount of memory in use by

all virtual machines on the physical host, and CPU utilization to automatically distribute incoming cluster requests to

the virtual machines added to the cluster. Response to changes in VMware configuration is dynamic. If the virtual

server performance in the pool is uneven, Equalizer automatically detects the uneven latency and sends new traffic

to the best available virtual machine. If a server is overloaded and reboots, Equalizer simply detects that the server is

available again, and automatically resumes sending traffic to it.

Equalizer VLB

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Please read these instructions completely before you install and configure Equalizer VLB.

After installation, see the Help menu for Release Notes and the Installation and Administration Guide.

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Coyote Point Systems Equalizer User Manual