Configure the Operating System

After installing or updating SAP ASE, adjust configuration settings.

You can configure some SAP ASE settings during installation. Unless stated otherwise, configuration information pertains to all supported UNIX platforms. See the Installation Guide for more details.

• Verifying Environment Variables
  Use env at the operating system prompt to verify that the SAP ASE environment variables are set correctly.
• Using the stty Setting
  Set stty tostop to stop a background SAP ASE from writing output to the terminal.
• Restore Correct Permissions
  SAP software files and directories are installed with the correct access permissions. If necessary, you can restore the correct permissions with the script setperm_all, located in $SYBASE/$SYBASE_ASE/install.
• File Descriptors and User Connections
  The number of user connections used by SAP ASE cannot exceed the number of file descriptors available to SAP ASE on the operating system.
• Enable Asynchronous Disk I/O
  Enable asynchronous disk I/O on Linux, IBM, and HP-UX.
• Adjust the Client Connection Timeout Period
  SAP ASE uses the KEEPALIVE option of the TCP/IP protocol to detect inactive clients.
• Check for Hardware Errors
  Check for hardware errors on a regular basis.
• Monitor the Use of Operating System Resources
  Monitor operating system performance.
• Check Database Integrity
  Run dbcc checks and perform database backups to protect the integrity and recoverability of your SAP ASE databases.