SAP Profile Parameter

 

In SAP system  there are two types of parameter profiles are defined at /sapmnt/<SID>/profile they are named as Default profile and Instance profile .Further there are two Instance profile in the system PAS profile and ASCS profile.

Name Convention of the files :

1. Default Profile -- DEFAULT.PFL

2. PAS \ Application Server Profile -- <SID>_<Instance_Name>_<Hostname>

3. ASCS \ SCS Profile -- <SID>_<ASCSXX>_<Hostname> or <SID>_<SCSXX>_<Hostname>

Parameters defined in these profiles has been used to define the functionality of an sap system like number of work processes, buffer size, lock table size, Enable SAP* etc. All the profiles can be managed from either from RZ10 or OS level directly. 

RZ10 keeps the changes of profile in form of  version management of profile which helps us to easily revert the changes to the latest working version of the profile whenever required.

Parameter that need to be changed at application level then we change in specific Instance profile of the system and changes required at system level then we do the changes in Default Profile.

There are two type of parameter that are defined in SAP system

1. Static Parameter

2. Dynamic Parameter

Static Parameter needs restart of the system to reflect the changes, Whereas dynamic parameters can updated at the runtime as per requirement and by resting the system it will be reverted to original.

From RZ11 we can easily find out parameter is static or dynamic.