SAP Basis

Unit 2: Starting and Stopping the SAP System ADM100
UNIX
Figure 19: UNIX: Starting
Log on in UNIX as a user with SAP administrator authorization
(adm).
To start the central instance call the shell script
startsap__ inthehomedirectoryofthe
adm user. If there is only one instance for each application server, the
alias startup points to the script startsap__.
The script startsap first starts the saposcol process, which collects
statistical data for the operating system and provides it to the SAP system.
The next step is a check to see if the database is running. If not, the script
startdb is called to start the database.
The final step starts all of the processes for the instance (message server,
dispatcher, work processes, and so on).
After the central instance is started, you can optionally start other instances.
The startsap script can be called with the following options:
DB: Starts the database system
R3: Starts the instances and associated processes for the instance
ALL: Starts the database system and the instance (default setting, can be
omitted)
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