Novell EDIRECTORY 8.8 SP5 - TUNING GUIDE FOR UNIX... Quick start guide

Novell®

www.novell.com

novdocx (en) 22 June 2009

AUTHORIZED DOCUMENTATION

Novell eDirectory Tuning Guide for UNIX* Platforms

eDirectory

8.8 SP5

December 02, 2009

Tuning Guide for UNIX* Platforms

novdocx (en) 22 June 2009

Legal Notices

Novell, Inc. makes no representations or warranties with respect to the contents or use of this documentation, and

specifically disclaims any express or implied warranties of merchantability or fitness for any particular purpose.

Further, Novell, Inc. reserves the right to revise this publication and to make changes to its content, at any time,

without obligation to notify any person or entity of such revisions or changes.

Further, Novell, Inc. makes no representations or warranties with respect to any software, and specifically disclaims

any express or implied warranties of merchantability or fitness for any particular purpose. Further, Novell, Inc.

reserves the right to make changes to any and all parts of Novell software, at any time, without any obligation to

notify any person or entity of such changes.

Any products or technical information provided under this Agreement may be subject to U.S. export controls and the

trade laws of other countries. You agree to comply with all export control regulations and to obtain any required

licenses or classification to export, re-export, or import deliverables. You agree not to export or re-export to entities

on the current U.S. export exclusion lists or to any embargoed or terrorist countries as specified in the U.S. export

laws. You agree to not use deliverables for prohibited nuclear, missile, or chemical biological weaponry end uses.

Please refer to www.novell.com/info/exports/ for more information on exporting Novell software. Novell assumes no

responsibility for your failure to obtain any necessary export approvals.

stored on a retrieval system, or transmitted without the express written consent of the publisher.

Novell, Inc. has intellectual property rights relating to technology embodied in the product that is described in this

document. In particular, and without limitation, these intellectual property rights may include one or more of the U.S.

patents listed at http://www.novell.com/company/legal/patents/ and one or more additional patents or pending patent

applications in the U.S. and in other countries.

Novell, Inc.

404 Wyman Street, Suite 500

Waltham, MA 02451

U.S.A.

www.novell.com

Online Documentation: To access the online documentation for this and other Novell products, and to get

updates, see www.novell.com/documentation.

novdocx (en) 22 June 2009

Novell Trademarks

Client32 is a trademark of Novell, Inc.

eDirectory is a trademark of Novell, Inc.

NetWare is a registered trademark of Novell, Inc., in the United States and other countries.

NetWare Core Protocol and NCP are trademarks of Novell, Inc.

NMAS is a trademark of Novell, Inc.

Novell is a registered trademark of Novell, Inc., in the United States and other countries.

Novell Client is a trademark of Novell, Inc.

Novell Directory Services and NDS are registered trademarks of Novell, Inc., in the United States and other

countries.

Ximian is a registerd trademark of Novell, Inc., in the United States and other countries.

ZENworks is a registered trademark of Novell, Inc., in the United States and other countries.

Third-Party Materials

All third-party trademarks are the property of their respective owners.

This product includes software developed by the OpenSSL Project for use in the OpenSSL Toolkit (http://

www.openssl.org).

4Novell eDirectory Tuning Guide for UNIX* Platforms

novdocx (en) 22 June 2009

About This Guide 5

novdocx (en) 22 June 2009

About This Guide

Welcome to Novell®eDirectoryTM 8.8. This guide describes how to analyze and tune Novell®

eDirectoryTM on UNIX* platforms to yield superior performance in all deployments.

This guide introduces the following:

Chapter 1, “Overview,” on page 9

Chapter 2, “eDirectory Subsystems,” on page 11

Chapter 3, “Analyzing System Bottlenecks,” on page 15

Chapter 4, “Tuning eDirectory Subsystems,” on page 19

Chapter 5, “eDirectory Configuration,” on page 27

Audience

The guide is intended for network administrators.

Additional Documentation

For more information about eDirectory 8.8, refer to the following:

Novell eDirectory 8.8 Installation Guide

Novell eDirectory 8.8 Administration Guide

Novell eDirectory 8.8 What’s New Guide

Novell eDirectory 8.8 Troubleshooting Guide

These guides are available at Novell eDirectory 8.8 documentation Web site (http://

www.novell.com/documentation/edir88/index.html).

For information about the eDirectory management utility, see the Novell iManager 2.7

Administration Guide (http://www.novell.com/documentation/imanager27/index.html).

Documentation Conventions

In this documentation, a greater-than symbol (>) is used to separate actions within a step and items

within a cross-reference path.

A trademark symbol (®, TM, etc.) denotes a Novell trademark. An asterisk (*) denotes a third-party

trademark.

When a single pathname can be written with a backslash for some platforms or a forward slash for

other platforms, the pathname is presented with a backslash. Users of platforms that require a

forward slash, such as Linux* and UNIX*, should use forward slashes as required by your software.

6Novell eDirectory Tuning Guide for UNIX* Platforms

novdocx (en) 22 June 2009

Contents 7

Contents

novdocx (en) 22 June 2009

About This Guide 5

1Overview 9

1.1 Prerequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2 eDirectory Subsystems 11

2.1 FLAIM Database . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.1.1 Checkpoint. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.1.2 Indexes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.1.3 Roll-Forward Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.2 Thread Pool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

3 Analyzing System Bottlenecks 15

3.1 Disk I/O Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.2 CPU Subsystem. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.3 Memory Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.4 Network Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

4 Tuning eDirectory Subsystems 19

4.1 FLAIM Database . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

4.1.1 Choosing Indexes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

4.1.2 Tuning for Updates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

4.2 Thread Pool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

4.3 ACLs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

4.3.1 Improving eDirectory Searches and Reads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

4.3.2 Disabling ACL Templates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

4.4 Replication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

4.5 SSL Overhead . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

4.6 64-Bit Versus 32-Bit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

4.7 Import Convert and Export (ICE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

4.8 ldif2dib . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

5 eDirectory Configuration 27

5.1 Configuring the FLAIM Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

5.1.1 Hard Cache Limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

5.1.2 Dynamically Adjusting the Limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

5.2 Modifying FLAIM Cache Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

5.2.1 Modifying FLAIM Cache Settings through iMonitor . . . . . . . . . . . . . . . . . . . . . . . . . 28

5.2.2 Modifying FLAIM Cache Settings through _ndsdb.ini . . . . . . . . . . . . . . . . . . . . . . . . 29

8Novell eDirectory Tuning Guide for UNIX* Platforms

novdocx (en) 22 June 2009

Overview

novdocx (en) 22 June 2009

Overview

Novell® eDirectory 8.8TM is a standards-compliant, cross-platform, highly scalable, fault-tolerant,

and high-performance directory services solution. This guide provides information on tuning your

eDirectory environment for improved performance.

Tuning for performance is a complex activity. It requires understanding of both the eDirectory and

operating system's subsystems. It involves monitoring the system to identify bottlenecks and fixing

them one at a time. Many a times resources are limited and tuning is confined to eDirectory and the

operating system.

In this guide, read the Prerequisites section before attempting any kind of tuning, then proceed to the

other sections. eDirectory Subsystems chapter describes primary subsystems that influence

eDirectory performance. Analyzing System Bottlenecks chapter describes various system resources

and their influence on eDirectory performance. Tuning eDirectory Subsystems chapter describes

how to analyze and tune eDirectory under various conditions and environments. Finally, the

eDirectory Configuration chapter describes how to configure various tunable parameters.

1.1 Prerequisites

Ensure that the following general prerequisites are met before attempting to tune the system for

performance:

A good eDirectory tree design (http://www.novell.com/documentation/edir88/edir88/data/

a2iiido.html) can enhance eDirectory performance. The following considerations might apply:

Applications read all the information locally on the server without needing to chain the

requests.

eDirectory efficiently handles object references automatically. If possible, objects on a

server should not refer to objects that are not local on that server, because maintaining

non-local object references can take more time. If such references exist, backlinks must be

maintained. This becomes cumbersome in large deployments.

If you need a group with 10,000 members or more, dynamic groups are recommended.

This allows you to avoid the overhead associated with maintaining references for so many

people. Choose your dynamic group configuration carefully, because using multiple

dynamic groups with improper search criteria might overload the server and reduce

overall server performance. If a search operation takes a long time to complete, the chosen

index might be inefficient. Minimize the use of regular(static) groups as this can increase

tree walking on login.

Use ACLs efficiently. For example, use the [This] trustee and assign it at the container

level instead of using an ACL template that assigns rights to itself. The fewer ACLs, the

better the performance. For more information on ACLs, refer to the Access Control List

(http://www.novell.com/documentation/edir88/edir88/data/fbachifb.html) in the Novell

eDirectory 8.8 Administration Guide.

Distribute the load onto multiple replica servers.

10 Novell eDirectory Tuning Guide for UNIX* Platforms

novdocx (en) 22 June 2009

Although a good tree design minimizes the need for tree walking, it is still sometimes

necessary. Advanced Referral Costing (http://www.novell.com/documentation/edir88/

edir88/data/b9u7705.html) can be considered.

If logins are slow, you can disable login updates. There are separate ways to disable login

updates for both NDS® and NMASTM logins. However, it is important to understand the

security implications (http://www.novell.com/documentation/nmas33/admin/

index.html?page=/documentation/nmas33/admin/data/bg8dphs.html).

Run health checks (http://www.novell.com/documentation/edir88/edir88/data/a5ziqam.html)

through iMonitor. Ensure the following:

Time is in sync across all replica servers.

Replica synchronization and background processes are in a healthy state.

This manual suits for next models

Table of contents

Other Novell Software manuals

Novell

Novell LINUX ENTERPRISE SERVER 10 SP2 - STORAGE ADMINISTRATION GUIDE... Instruction Manual

Novell

Novell ZENWORKS 10 CONFIGURATION MANAGEMENT SP3 - PREBOOT SERVICES AND IMAGING REFERENCE 10.3... Quick reference guide

Novell

Novell LINUX ENTERPRISE SERVER 11 - VIRTUALIZATION User manual

Novell

Novell LINUX ENTERPRISE DESKTOP 10 SP2 User manual

Novell

Novell EVOLUTION 2.6 User manual

Novell

Novell ZENWORKS 7.2 LINUX MANAGEMENT - SCENARIOS 2... User manual

Novell

Novell ACCESS MANAGER 3.1 SP2 - README 2010 User manual

Novell

Novell LINUX ENTERPRISE SERVER 11 - STORAGE ADMINISTRATION GUIDE... Instruction Manual

Novell

Novell EDIRECTORY 8.8 SP5 User manual

Novell

Novell ZENWORKS 10 CONFIGURATION MANAGEMENT SP3 - NETWORK DISCOVERY DATABASE... User manual

Novell

Novell IDENTITY ASSURANCE SOLUTION 3.0.2 -... User manual

Novell

Novell ZENWORKS 10 CONFIGURATION MANAGEMENT SP3 - NETWORK DISCOVERY DATABASE... Quick guide

Novell

Novell INTERNET STORAGE NAME SERVICE 1.0 -... User manual

Novell

Novell POLICY IN DESIGNER 3.5 - 09-18-2009 User manual

Novell

Novell ZENWORKS SUITE 7SP1 IR4 - GETTING STARTED GUIDE... User manual

Novell

Novell IDENTITY MANAGER 3.6.1 - CLIENT LOGIN EXTENSION... User manual

Novell

Novell LINUX ENTERPRISE DESKTOP 11 - ADMINISTRATION GUIDE... Instruction Manual

Novell

Novell ZENWORKS 10 CONFIGURATION MANAGEMENT SP3 - COMMAND LINE UTILITIES REFERENCE 10.3... User manual

Novell

Novell ZENWORKS 10 CONFIGURATION MANAGEMENT SP3 - COMMAND LINE UTILITIES REFERENCE 10.3... User manual

Novell

Novell IFOLDER 3.8 - DEPLOYMENT Quick reference guide

Novell

Novell CLIENT FOR LINUX 2.0 SP1 - 08-2008 User manual

Novell

Novell OPEN ENTERPRISE SERVER 2 SP2 -... User manual

Novell

Novell GROUPWISE 8 - LINUX-MAC CLIENT User manual

Novell

Novell ACCESS MANAGER 3.1 SP1 - AGENT GUIDE User manual

Popular Software manuals by other brands

COMPRO

COMPRO COMPROFM manual

Muratec

Muratec OFFICEBRIDGE ONLINE user guide

Oracle

Oracle Contact Center Anywhere 8.1 installation guide

Adobe

Adobe 65007312 - Photoshop Lightroom Programmer's guide

Avaya

Avaya NULL One-X for RIM Blackberry user guide

HP ProLiant BL420c user guide

PS Audio

PS Audio PowerPlay Programming manual

Brady

Brady LOCKOUT PRO 3.0 Administrator's guide

Avaya

Avaya Interaction Center user guide

Texas Instruments

Texas Instruments TI-83 Plus Silver Edition Guide book

Oracle

Oracle Application 9i Configuration guide

Acer

Acer RDM user guide

Canon

Canon Vixia HF21 instruction manual

Canon

Canon ZR950 instruction manual

Samsung

Samsung Auto Backup user manual

Polycom

Polycom Vortex EF2201 Application note

Brocade Communications Systems

Brocade Communications Systems Brocade 8/12c user manual

Lexmark

Lexmark Apps Administrator's guide