HP UX Direry Server manual Nsslapd-cache-autosize, Logging

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Figure 3: Performance based on percentage of database entries in the entry cache

 

20000

 

18000

 

16000

 

14000

operations/sec

12000

10000

 

8000

6000

4000

2000

0

0%

20%

40%

60%

80%

100%

120%

% of database entries in entrycache

nsslapd-cache-autosize

500k

The nsslapd-cache-autosizeparameter is described as follows in the HP-UX Directory Server configuration, command, and file reference.

nsslapd-cache-autosize

This performance tuning attribute, which is turned off by default, specifies the percentage of free memory to use for all the combined caches. For example, if the value is set to 80, then 80 percent of the remaining free memory is claimed for the cache. To run other servers on the machine, then set the value lower. Setting the value to 0 turns off the cache autosizing and uses the normal nsslapd-cachememsizeand nsslapd-dbcachesizeattributes.

Entry DN:

cn=config,cn=ldbm database,cn=plugins,cn=config

Valid Range:

0 (turns cache autosizing off) to 100

Default Value:

-1

Syntax:

Integer

Example:

nsslapd-cache-autosize: 80

If you set nsslapd-cache-autosizeto a non-zero value between 0 and 100, HPDS will override the nsslapd-cachememsizeand nsslapd-dbcachesizeparameters with a value calculated based on the amount of free memory at the time HPDS starts up. This is often not preferable, as free memory might fluctuate from time to time based on system usage.

Logging

HPDS provides three types of logs to help you better manage your directoryand tune performance. These logs include:

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Contents HP-UX 11i v3 Integrity Systems Purpose of this document Sizing and tuning overviewOverview Product overviewDirectory server tuning overview System parameter tuningCPUs Sizing and Tuning RecommendationsSizing guidelines SystemsNsslapd-threadnumber Tuning recommendationsMemory Nsslapd-threadnumberNsslapd-dbcachesize Nsslapd-dbcachesizePage Nsslapd-cachememsize Nsslapd-cachememsize and nsslapd-cachesizeNsslapd-cachesize Page Logging Nsslapd-cache-autosizeNsslapd-cache-autosize Data collection 1 Different number of CPUs Performance measurementsPurpose Test resultsData collection 3 Different values of nsslapd-dbcachesize Data collection 2 Different values of nsslapd-threadnumberData collection 4 Different sizes of entry cache Nsslapd-dbcachesize Searches per secondOFF Data collection 5 Access log on compared to Access log offTest Environment Additional tuning referenceGeneral directory server configuration Appendix a Hpds 8.1 performance test detailsPerformance Data Creation Performance Monitoring ToolsCall to action For more information
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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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