Changing default device designation

When you create a database, you can specify the database device on which to create it. If you do not specify a device, Adaptive Server creates the database on a device that has been designated as a default device. If you have multiple default devices, Adaptive Server uses them in alphabetical order until each is full.

The master device created during an Adaptive Server installation holds the three system databases: master, model, and tempdb. This device is initially designated as a default device.

Sybase strongly recommends that you remove the default designation from the master device to prevent its getting cluttered and to make recovery easier in the case of a disk failure.

Changing the default designation of a device

Select the device icon, then select File | Properties.
Select the General tab. The Properties | General dialog appears. You see:
- Device number – the database device number.
- Default device – Select or clear the Default Device check box. Selecting the box makes the device a default device. Clearing the box removes the default designation.
- Data sync – Select or clear the Data Sync check box. When you select this option, writes to the database device occurs directly to the physical storage media, and the server can recover data on the device in the event of a system failure.
  
  See sp_deviceattr in Reference Manual: Procedures for more details.
Click OK when you are done, or Cancel to cancel.