Database and IS specific preparation
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- Deactivaion of cluster failover during the technical downtime
- Free memory space avalable for the database
- rrequired memory space avalable in F.S
- Automatic restart of SAP system is deactivated
- Dattabase statistics is updated
SAP system side preparation.
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- All functional that is bussiness-critiacal, background jobs are complete and planned.
- Outstanding updates are processed.
- Setting up a system messsage (SM02) with the inforamtion that system is unavaliable
- No SAP object locked by repairs
- consistence check (missing table and indexes ) successful (DB02)
- Background jobs of class C configurred for CI
- RDDIMPDP background job configurred for CI
- Batch process configured for CI
- Locking of SAP users
- No active users logged into the system
- No open or aborted updates in system(SM13)
- BW delta queues processed (SMQ1)
- General : interface gueues cleaned (LBWG)
- Monitoring tools ( application server and CI) stoipped during downtime.
- Isolation of CI (stopping the application servers)
- Take a complete offline database backup( better if you take F.S backup of /oracle directoty)
- Consisttent backup of installation directory,of the kernel directory and SAP profiles avaliable as they will be overwritten during downtime.
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