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=Scheduled maintenance=
Following different scenarios are possible for base IT infrastructure maintenance for SAP servers:
; Only App and DB software maintenace : In this case we can stop or start SAP cluster using [[Pacemaker start and stop for Hana DB and application servers]]
; Entire power servers and LPARs need to be powered off and on : In this case we can follow the sequence described at [[Stopping and starting all LPARS deployed on power servers for SAP App and DB]]


=Primary server failure=
In any kind of primary server failure (App or DB)
* Secondary will automaticlly become primary.  Primary App or DB will start running from Secondary
*: Owner:Automatic
* Put cluster in maintenance mode
*: Owner: IT Infrastructure team
* Fix issue with primary server (Hardware / OS /SAP)
*: Owner:Appropriate teams
* Shutdown App or DB from secondary server
*: Owner:SAP Application/DB team
* Validating that replication between primary and secondary is working properly
*: Onwer: SAP Application/DB team
* Reboot both primary and secondary nodes
*: Owner: IT Infrastructure team
* After this follow [[Pacemaker start and stop for Hana DB and application servers]]


=Secondary server failure=
* Nothing happens to production : Primary continues to be primary.  Dev/QA running from secondary will stop.
*: Owner: Automatic
* Put cluster in maintenance mode
*: Owner: IT infrastructure team
* Fix issue with secondary server (Hardware / OS / SAP)
*: Owner:Appropriate teams
* Validating that replication between primary and secondary working properly
*: Owner: SAP Application/DB team
* Reboot secondary node
*: Owner: IT infrastructure team
* After this follow [[Pacemaker start and stop for Hana DB and application servers]]





[[Main Page|Home]] > [[Suse]] > [[SAP setup and maintenance]] > [[SAP server maintenance overview]]