Table 6-1 Effects of replication and remote lookup on the network

Load type

Objects1

Accesses/day2

Avg. entry size

Load

Replication

1 million

100,000

1Kb

100Mb/day

Remote Lookup

100

1,000

1Kb

1Mb/day

1For replication, objects refers to the number of entries in the database. For remote lookup, it refers to the number of users who access the database.

2For replication, Accesses/day is based on a 10% change rate to the database that needs to be replicated. For remote lookup, it is based on ten lookups per day for each remote user.

Given the difference in loads caused by replication versus that caused by normal directory usage, using replication for network load-balancing purposes may not be desirable. On the other hand, the benefits of locally available directory data can far outweigh any considerations regarding network loads.

A good compromise between making data available to local sites and overloading the network is to use scheduled replication. For more information on data consistency and replication schedules, see “Data consistency”.

6.3.8.1 Example of network load balancing

In this example, the enterprise has offices in New York and Los Angeles, and each office has specific subtrees that they manage.

Figure 6-9 Managing enterprise subtrees in remote offices

Each office contains a high-speed network, but the connecion between two cities is unreliable. To balance the network load:

1.Select one server in each office to be the supplier server for the locally managed data.

2.Replicate locally managed data from that server to the corresponding supplier server in the remote office.

3.Replicate the directory tree on each supplier server (including data supplied from the remote office) to at least one local Directory Server to ensure availability of the directory data. Use multi-master replication for the suffix that is managed locally, and cascading replication for the suffix that receives a master copy of the data from a remote server.

6.3 Defining a replication strategy

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HP UX Direry Server manual Example of network load balancing, Effects of replication and remote lookup on the network
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UX Direry Server specifications

HP UX Directory Server is a robust and scalable solution designed for managing directory information within enterprise networks. Developed by Hewlett-Packard (HP), this server offers an extensive set of features tailored to meet the needs of organizations that require an efficient way to store, manage, and retrieve identity and access data.

One of the key features of HP UX Directory Server is its ability to handle large directories with significant volumes of data. Built on a highly optimized architecture, it provides excellent performance and can support millions of entries without sacrificing speed or reliability. This capability makes it an ideal choice for large-scale deployments in enterprises that require high availability and responsiveness.

In addition to its scalability, HP UX Directory Server supports a wide range of protocols, including LDAP (Lightweight Directory Access Protocol), which ensures seamless integration with diverse applications and systems across various platforms. The server maintains standards compliance, which facilitates interoperability and simplifies administration tasks.

Security is a top priority for HP UX Directory Server, offering an array of features to protect sensitive information. It supports secure data transmission via TLS/SSL protocols, ensuring encrypted communication between clients and servers. Advanced access controls allow administrators to define fine-grained permissions, helping to safeguard directory data against unauthorized access.

Another salient feature of HP UX Directory Server is its replication capabilities. The server can replicate directory data across multiple instances, ensuring data consistency and availability in distributed environments. This feature is essential for businesses operating across different geographical locations or requiring failover solutions for disaster recovery.

HP UX Directory Server also comes equipped with tools for data management, including an intuitive administration console for configuring and monitoring the server. Additionally, it offers customizable schema capabilities, enabling organizations to tailor the directory structure to fit their specific needs.

Integration with existing identity management solutions is streamlined through connectors and APIs, allowing organizations to extend their directory services and enhance user experience.

In summary, HP UX Directory Server is a powerful directory management solution that combines scalability, security, and integration flexibility. Its support for industry standards, advanced replication, and comprehensive administrative tools makes it an essential asset for organizations seeking to manage identity and access efficiently. By leveraging this technology, businesses can improve their operational efficiency and ensure a secure and organized approach to directory management.
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