Parameter
scsa/shm/key
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 Shared Common System Area 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 numerical keys (for example, for UNIX). It contains the instance number by default so that different instances do not confuse their SCSAs.
Application Area
Scsa
Default Value
589001$$
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 key 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
Values allowed
Number
