XADM: Naming Exchange Server Computers to Optimize KCC PerformanceID: Q224592
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The naming of Exchange Server computers within an Exchange Site influences the performance of the Knowledge Consistency Checker (KCC) and the amount of network traffic that the KCC creates.
Each Exchange Server computer in a site runs a KCC check every three hours to verify its knowledge of other Exchange Server computers in the site. To verify this knowledge, an Exchange Server computer will contact another Exchange Server computer in the site to compare their information. Which Exchange Server computer is contacted depends on its alphanumeric name.
For example, site A has six servers: ServerA through ServerF. ServerA's KCC will contact ServerB, ServerB's will contact ServerC, and so on. The last Exchange Server computer alphanumerically, ServerF, will contact the first Exchange Server computer, ServerA,
creating a virtual ring. The closer this virtual ring is to the actual network topology, the less network traffic will be caused by the KCC.
Extending the above example, if ServerA, ServerC, and ServerE are on one subnet, and ServerB, ServerD, and ServerF are on another subnet, one full KCC cycle will cross subnets six times, in the following order:
Additional query words: intrasite replication
Keywords :
Version : winnt:5.5
Platform : winnt
Issue type : kbinfo
Last Reviewed: May 18, 1999