Clustering in webmethods

Hi,

Can any one give me clear idea about clustering environmenet in webmethods?

why we need cluster??

Thanks,
Sakthi

Scalability, Availability and Reliability.

Refer documentation of IS clustering:

Link: http://techcommunity.softwareag.com/ecosystem/documentation/webmethods/wmsuites/wmsuite8-2_sp2/Integration_Server/8-2-SP2_Integration_Server_Clustering_Guide.pdf

-Senthil