Monitoring the R/3 Data Disk 

Use

It is vital to regularly check the space used by the server. If the data file or log file of the database is full, the R/3 System will come to a standstill. Although, after the installation of R/3, the autogrow option is set and files automatically grow whenever they are full, this still does not guarantee that disks will not run out of space. Checking the amount of free space available on the disk must always be one of the routine tasks performed by a database administrator.

When you look at the amount of free space specified for logs, keep in mind that the data displayed reflects snapshots taken at a specific point in time. As logs are backed up and truncated at hourly intervals, a large amount of free space might be displayed because the log has just been truncated. For more information see Monitoring the R/3 Log Disk.

Procedure

Monitoring the Current Database Size

Use the following procedure in the Enterprise Manager, to get a quick overview of the current size of the database files and the free space available.

  1. In the Enterprise Manager, expand the server and Databases.
  2. Select the <SAPSID> database.

    3. The right-hand pane displays general information about the <SAPSID> database.

  3. From the bar at the top of the pane, choose Space Allocated.

The free space, used space and total space is displayed for each database file.

Monitoring the Database Size History

Use this procedure to get an overview of the space used by the R/3 database over a longer period of time.

  1. To access the R/3 Database Monitor, enter transaction code ST04.
  2. Choose the Detail analysis menu.
  3. Choose DB Space History.

    4. The View databse history window opens.

  4. Use the available pushbuttons to change the period for which you want to view space history.