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Module 11: Maintaining and Optimizing MMS
Contents
Overview 1 Examining the MMS Database 2
Backing Up and Restoring the
MMS Database 4
Compacting the MMS Database 6 Optimizing MMS Database Searches 8 Lab A: Maintaining the MMS Database 17
Distributing the Metadirectory Across
Multiple MMS Servers 18
Best Practices 26
Lab B: Creating Referrals and Replication Agreements 27
Review 28
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Module 11: Maintaining and Optimizing MMS 1
Overview
Topic Objective
To provide an overview of the module topics and objectives.
Lead-in
In this module, you will learn about how to maintain and optimize MMS.
!Examining the MMS Database
!Backing Up and Restoring the MMS Database
!Compacting the MMS Database
!Optimizing MMS Database Searches
!Distributing the Metadirectory Across Multiple MMS Servers
!Best Practices
After you have implemented Microsoftfi Metadirectory Services (MMS) version 2.2 for your organization, there are a number of tasks that you should perform to maintain the functionality of the metadirectory. These tasks include backing up and restoring the MMS database, and compacting the database to recover storage allocated to deleted records.
It is also important to optimize MMS database searches from time to time to accommodate the modifications that occur to the information in the metadirectory. In addition, you can improve server and network performance by distributing the metadirectory across multiple MMS servers. Understanding how to maintain and optimize MMS is essential to ensuring the ongoing functionality of the metadirectory.
After completing this module, you will be able to:
!✂Describe the components of the MMS database.
!✂Backup and restore the MMS database by using the MMS Online Backup Utility.
!✂Maintain the MMS database by using the MMS Compaction Utility. !✂Optimize database searches by using the MMS Hash Configuration Utility. !✂Distribute the metadirectory across multiple MMS servers.
!✂Describe best practices for maintaining and optimizing the MMS database.
BETA MATERIALS FOR MICROSOFT CERTIFIED TRAINER PREPARATION PURPOSES ONLY
2 Module 11: Maintaining and Optimizing MMS
Examining the MMS Database
Topic Objective
To identify the components of the MMS database.
File Description
Lead-in
The MMS database consists of a set of files in the \Zoomserv\Data\Db directory.
DB500.p
DB500.lok
X500.db
Hash.db
DB500.dat
DB500.ndx
Make up the relational database component of the metadirectory and must always be stored in the
same location
Contains the entire metadirectory ASN.1 database
Contains the hashed iindex to the database that iis used for searching
Hashwild.db
VIATran.*
Contains the wildcard search index
Contain a transaction stack of operations performed on the database and its index files
Before you begin to the tasks associated with maintaining and optimizing the MMS database, it is important to know about the structure and files that comprise the database. The MMS database consists of the following files in the \Zoomserv\Data\Db directory:
!✂DB500.p, DB500.lok, DB500.dat, and DB500.ndx. These files comprise the relational database component of the metadirectory and must always be stored in the same directory.
!✂X500.db. This file contains the entire metadirectory Abstract Syntax Notation 1 (ASN.1) database. The size of the X500.db file is limited to two gigabytes.
!✂Hash.db. This file contains the index that is used for searching the database.
!✂Hashwild.db. This file contains the wildcard search index, which enables partial-word searches.
!✂VIATran.*. These files contain a transaction stack of operations performed on the database and its index files.
Note The \Zoomserv\Data\Db directory also contains a subdirectory, \Fileattr, which is designed to store the contents of files, such as Microsoft Word documents or Microsoft Excel spreadsheets, that are referenced in the MMS database. The entire \Fileattr tree must be stored in one location, which cannot be changed without reinitializing MMS.
Typically, the MMS Server database files are all contained in the \Zoomserv\Data\Db directory on the MMS server. However, you can distribute the database files over multiple disks and multiple computers, for example if your MMS server has limited hard disk space.
To store the database files in a location other than the \Zoomserv\Data\Db directory on the MMS server, move the files to the new location and then edit the DB5CFG file in \Zoomserv\Data\Config to reflect that new location.
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Module 11: Maintaining and Optimizing MMS 3
As installed, the DB5CFG file contains a series of lines that serve as placeholders for specifying the location of the MMS database components. By default, these lines are commented out (the # sign indicates a comment) and the location of the MMS database is in the \Zoomserv\Data\Db directory. If you move any of the database files, you must uncomment the appropriate line and provide a full path to the new location.
The following table describes the lines in the DB5CFG file and the components associated with each line.
Line
db5_rel_db_dir db5_asn_db_dir db5_hash_db_dir db5_tran_db_dir
db5_fileattr_dir
Component
All four DB500 files X500.db
Hash.db, Hashwild.db VIATran.nn, VIATran.idx
\Fileattr directory
Note You must restart the MMS Server service before changes to the DB5CFG file take effect.
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