Tivoli® Directory Server provides two mechanisms for backing up and restoring complete directory server instance information: basic and enhanced. These mechanisms can back up not only the directory server instance data (stored in a DB2® database), but also the associated configuration and schema files for the directory server instance.
You can find information about the basic method in Creating a new instance for which you specify all settings and Backing up the directory server instance, and in the IBM Tivoli Directory Server Version 6.3 Command Reference (see the information about the idsdbback and idsdbrestore commands).
Information about the enhanced method is contained in the IBM Tivoli Directory Server Version 6.3 Administration Guide (see the chapter entitled "Directory Server backup and restore") and in the IBM Tivoli Directory Server Version 6.3 Command Reference (see the information about the ldapexop utility with the extended operations option -op backuprestore).
Both methods provide the option to perform online or offline backups. (Online backups can be performed while the server is running or stopped; offline backups must be performed while the server is stopped.) The backups are always stored on the server where they are taken. However, there are differences in where and how you can request the backup.
With either of these two methods, the backups do not back up the following files, which you must back up separately:
After investigating these methods, choose one and use it exclusively. Do not mix the two methods.
The following table compares the two methods.
| Feature | Basic method | Enhanced method |
|---|---|---|
| Request from | Local server | Remote or local server |
| Interface used | Instance Administration Tool or the idsdbback and idsdbrestore commands | Web Administration Tool or ldapexop utility |
| Backup location | Can be taken to a different location each time; overwrites the previous backup only if the backup is performed to the same location. | Provides a way to configure the backup location and method that will be used for all the backups requested through this mechanism. |
| Store one or multiple backups | Multiple backups | Stores only one backup at a time and overwrites previous backups when the new backup is successfully taken |
| Restores | Administrator can choose from any backup location on the disk | Allows a restore only from the most current backup taken |
| Scheduling | One time request that backs up or restores to a specific location specified at the time of the backup | Provides the option to schedule backups one time, daily or weekly. |
| Online or offline | Can perform online or offline backups. | Can perform online or offline backups. |
| Backs up directory server data and associated configuration and schema files | Provides option to back up only configuration files | Backs up data and associated configuration and schema files |
| Administrator management | More required. Administrators must better manage their disk space. | Less required. Only one backup location. |
| Backs up and restores DB2 parameters | Backs up and restores DB2 configuration parameters and database optimization parameters | Backs up and restores DB2 configuration parameters and database optimization parameters |
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