Chapter 10. Topology Design

   
  • Directory Topology Overview

  • Gluing the Directory Together: Knowledge References

  • Authentication in a Distributed Directory

  • Advantages and Disadvantages of Partitioning

  • Designing Your Directory Server Topology

  • Topology Design Checklist

  • Further Reading

  • Looking Ahead

LDAP directory services are designed to support a distributed directory, in which the complete directory tree is spread across multiple physical directory servers. Your directory service's topology describes the way you divide your directory tree among physical servers and how you allocate those servers among your organization's physical locations. Making good choices about your directory topology will help you

  • Achieve the best possible performance for your directory-enabled applications

  • Increase directory availability

  • Better manage your directory

In this chapter we first examine how a distributed directory works. We discuss several important background concepts, including the definition of a directory partition, name resolution in a distributed directory, and how separate partitions are joined into a single directory using referrals or chaining. Finally, we discuss why you might or might not want to partition your directory, and we work through two sample scenarios.

This chapter is closely related to Chapters 9, Namespace Design, and 11, Replication Design. In fact, we suggest that you read all three chapters as a unit because decisions concerning namespace design have direct consequences for your directory topology, which in turn has a direct bearing on your replication strategy. After you read this chapter, you'll know how to partition your directory service for maximum performance and manageability and how to allocate servers across your LAN or WAN (local or wide area network). This knowledge, along with the information presented in Chapters 9 and 11, will help you design a highly robust, high-performance directory service.

   


Understanding and Deploying LDAP Directory Services
Understanding and Deploying LDAP Directory Services (2nd Edition)
ISBN: 0672323168
EAN: 2147483647
Year: 2002
Pages: 242

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