Installing and Using HP LocalDirector Controller
What is HP LocalDirector Controller?
What is HP LocalDirector Controller?
HP LocalDirector Controller (HP LDC) works with Cisco LocalDirector1 by automatically generating the information needed by Cisco LocalDirector to load balance TCP/IP traffic across multiple servers. HP LDC, specifically the HP LocalDirector Control daemon (ldc_agt), must be configured and running on each system that is managed by Cisco LocalDirector. Information regarding Cisco LocalDirector can be found at the URL http://www.cisco.com/warp/public/751/lodir/.
Figure | HP LocalDirector Controller |
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Intranet |
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HP 9000
Server 1
HP LDC
Server 2
HP LDC
HP 9000
The information generated by HP LDC is referred to as “weights” in this document. The weights help Cisco LocalDirector determine which system has the resources to process an incoming request.
Initial weights are generated by the Webstone benchmark tool. Webstone generates traffic to a system and calculates the throughput based on getting
With HP LDC, each server can be assigned a weight. HP LDC uses this weight to determine the percentage of the current number of connections. Servers with a higher weight value receive a larger percentage of connections at any one time. There are two load balancing algorithm in HP LDC that use weights. One is weighted least connection; the other is weighted R/R DNS.
1. Cisco LocalDirector is a product of Cisco Systems, Inc.
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