## Starting (Restarting) the Database Instance

You can use the Database Manager GUI to start a database instance.

### Prerequisites

1. Make sure that the database instance has been included in the list of database instances (see Managing the List of Database Instances).

2. Connect to the DBM server.

3. Determine the operational state of the database instance: Monitoring the Operational State.

### Procedure

Select a database instance in the list of database instances by double-clicking it.

The database instance is in the OFFLINE operational state.

· Transferring the database instance to the operational state ONLINE
Choose Actions ® Online.
The database instance starts.

· Transferring the database instance to the operational state ADMIN
Choose Actions ® Admin.
The database instance is transferred to the operational state ADMIN.

The database instance is in the ADMIN operational state.

· Transferring the database instance to the operational state ONLINE
Choose Actions ® Online.
The database instance starts.

Each time you start the database instance, a copy of the log file knldiag is made under the name knldiag.old. The file knldiag is overwritten. Use this log file to analyze any errors that occurred when you started or stopped the database instance.

See also:

Stopping the Database Instance (Shutdown)

Concepts of the Database System, Automatic Start