Parameter
scsa/shm/start
Short text
Start address 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. A suitable address is usually assigned by the operating system. However, some operating system versions do not leave enough free space for malloc(). In these cases, you can use this parameter to request a higher address.
Application Area
Scsa
Parameter Unit
Virtual main memory address (byte address)
Default Value
0 (has no effect)
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 must be dividable by 4096 or 1048576.
