Home > Storage > ObjectScale and ECS > Product Documentation > ECS with Kemp LoadMaster Deployment Reference Guide > Kemp LoadMaster constructs
A general understanding of the Kemp LoadMaster constructs is critical to a successful architecture and implementation. The following is a list of the most common Loadmaster constructs:
Virtual Services - The virtual service advertises an IP address and port to the external world and listens for client traffic.
Virtual Service Templates - Adding Virtual Services can be both repetitive and prone to error when being performed over multiple LoadMasters. Kemp has developed a general template mechanism that will allow consistency and ease of use when creating Virtual Services.
Using templates to set up and configure a Virtual Service is a two-stage process. Initially the templates must be imported into the LoadMaster. When imported, the templates can then be used when adding a new Virtual Service.
Real Servers - A real server configuration includes the IP address of the individual ECS nodes and port numbers that the real server receives sessions on.
Real Server Check Method - The Kemp LoadMaster uses health checks to monitor the availability of the Real Servers. If one of the servers does not respond to a health check within a defined time interval for a defined number of times, the weighting of this server is reduced to zero. This zero weighting has the effect of removing the Real Server from the available Real Servers in the Virtual Service until it can be determined that this Real Server is back online.
Global Balancing - Directs web facing traffic to the closest and fastest performing data center through intelligent DNS responses and provides failover support from a data center suffering from an outage to another data center that has capacity available.
Two-Arm Deployment