Parameter
scsa/shm/file
Short text
Identifier for Shared Common System Area
Parameter Description
The SCSA is a shared memory area that is used by basis components such as system log, trace, and so on. Depending on the operating system, the SCSA is created either as a standalone shared memory area, or as area no. 5 on the SAP IPC interface. If this is created directly in the operating system, this can require a numeric or textual detection key. This parameter is for textual keys (for example, for OS/2). It contains the instance number by default so that different instances do not confuse their SCSAs.
Application Area
Scsa
Database System Restrictions
None
Are other parameters affected or dependent?
• scsa/shm/key is the key for the SCSA in the operating system (for example, UNIX)
• scsa/shm/file is the name for the SCSA in the operating system (for example, OS/2)
• scsa/shm/size is the size of the SCSA (in bytes)
• scsa/shm/start is a default value for the initial address in the virtual memory
• scsa/create_daemon/exe_file is a separate program for creating the SCSA
• scsa/autocreate defines whether a missing SCSA is to be created automatically
• install/uid names the user at operating system level, to which the SCSA is to belong
