Here i would like to explain you about how to stop and start your SAP system, and what are the pre-checks need to be done before doing stop and start SAP.
At the first instance you need to check below activities
- online users and their activity
- update the system message, your downtime should be well planned and intimate end users
- See what is running in the system(background jobs, updates, locks, active work process etc….
Once the above pre-steps done, proceed with stop and start SAP, execute below commands to do that.
| Shutdown System |
| stopsap all(stop sap system) |
| Kill remaing processes |
| ps –ef|grep sidadm ( check if any process is running) |
| kill -9 PID (kill the process) |
| Clean Memory |
| cleanipc <systen no>remove (clean shared memory) |
| for ex:- |
| cleanipc 00 remove |
| cleanipc 01 remove |
| ipcs|grep sidadm ( to check if shared memory still exists if entries found) clean as below |
| ipcrm –s pid –m pid –m pid –m pid –s pid (clean the remaining shared memory) |
| ipcs|grep adm (should return Blank) |
| Start SAP |
| startsap all |
To bring down system Manually:
stopsap r3 D00 (D00 Instance no, it can also be D01, D10 etc, we need to check this from cdpro –>ll )
To bring up system Manually:
startsap r3 D00
Stopping & Starting Up the Oracle Database System :
sqlplus “/ as sysdba”
sql>shutdown
or
sql>shutdown immediate
Start Database
sql>startup