Difference between revisions of "Stopping and starting all LPARS deployed on power servers for SAP App and DB"

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<yambe:breadcrumb self="Stopping and starting all LPARS deployed on power servers for SAP App and DB">SAP setup and maintenance|SAP setup and maintenance</yambe:breadcrumb>
[[Main Page|Home]] > [[Suse]] > [[SAP setup and maintenance]] > [[Stopping and starting all LPARS deployed on power servers for SAP App and DB]]
=Stopping and starting all LPARS deployed on power servers for SAP App and DB=


It is possible to required shutting down all LPARs, followed by power server for some UPS / Cooling / Network maintenance activity at DC.  In such cases to shutdown and start entire SAP related infrastructure refer below steps:
It is possible to required shutting down all LPARs, followed by power server for some UPS / Cooling / Network maintenance activity at DC.  In such cases to shutdown and start entire SAP related infrastructure refer below steps:


==SAP Infra shutdown process==
==SAP Infra shutdown process==
# Put the Linux cluster related to SAP App and DB in maintenance mode
# Stop Application, DB and NFS servers as per [[Pacemaker start and stop for Hana DB and application servers]]
# SAP team should stop application servers
# SAP team should stop database servers
# Stop the pacemaker cluster serives in Application & Database servers as per [[Pacemaker start and stop for Hana DB and application servers]]
# Shutdown all the LPAR's using:
# Shutdown all the LPAR's using:
#:<pre>
#:<pre>
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# Start Dell host
# Start Dell host
# Start HMC VM
# Start HMC VM
#: Note: After storage, wait for 15-20mins for start physical hosts
#: Note: '''After storage, wait for 15-20mins for start physical hosts'''
# Start primary physical host
# Start primary physical host
# Start seconday physical host
# Start seconday physical host
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# Start Database primary LPAR.  
# Start Database primary LPAR.  
# Start Database secondary LPAR.  
# Start Database secondary LPAR.  
# SAP team start the Database in both the LPARs, Replication between the databases should work
# Start NFS and Database servers as per [[Pacemaker start and stop for Hana DB and application servers]]
# Start the pacemaker cluster in primary node  as per [[Pacemaker start and stop for Hana DB and application servers]]
# Start the pacemaker cluster in secondary node
#: Primary and Secondary nodes cluster services are in maintanence mode, because custer services was stopped in the maintenance mode state
# Get confirmation from SAP team on Database & Replication services working status
# Remove the database primary node from the maintenance using:
#:<pre>
#:: crm node ready <nodename>
#:</pre>
# Remove the database secondary node from the maintenance
# Get confirmation from SAP team on the Database & Replication services working status
# After nodes are in online state, Then only cluster services is in start state.  Check cluster services health using:
#:<pre>
#:: crm status
#:</pre>
# Start the Application Primary LPAR
# Start the Application Primary LPAR
# Start the Application Secondary LPAR
# Start the Application Secondary LPAR
#: Primary and Secondary nodes are in maintanence mode, because custer services was stopped in maintenance mode state
# Start APP services in Primary & Secondary nodes as per [[Pacemaker start and stop for Hana DB and application servers]]
# Remove the Application primary node from the maintenance using:
#:<pre>
#:: crm node ready <nodename>
#:</pre>
# Remove the Application secondary node from the maintenance.
# After nodes are in online state, Then cluster services is in start state and able to see all the mount points
# SAP team will start APP services in Primary & Secondary nodes as per [[Pacemaker start and stop for Hana DB and application servers]]
# Start all the LPARs
# Start all the LPARs
#: Note: Backup LPAR should start last
#: Note: Backup LPAR should start last


Refer:
Refer:
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<yambe:breadcrumb self="Stopping and starting all LPARS deployed on power servers for SAP App and DB">SAP setup and maintenance|SAP setup and maintenance</yambe:breadcrumb>
[[Main Page|Home]] > [[Suse]] > [[SAP setup and maintenance]] > [[Stopping and starting all LPARS deployed on power servers for SAP App and DB]]

Revision as of 03:53, 6 April 2022

Home > Suse > SAP setup and maintenance > Stopping and starting all LPARS deployed on power servers for SAP App and DB

It is possible to required shutting down all LPARs, followed by power server for some UPS / Cooling / Network maintenance activity at DC. In such cases to shutdown and start entire SAP related infrastructure refer below steps:

SAP Infra shutdown process

  1. Stop Application, DB and NFS servers as per Pacemaker start and stop for Hana DB and application servers
  2. Shutdown all the LPAR's using: 
    shutdown -h now
    Note: Backup LPAR should be powered of at last
  3. Shutdown second VIOS server
  4. Shutdown first VIOS server
  5. Shutdown second physical host
  6. Shutdown first physical host
  7. Shutdown HMC VM
  8. Shutdown Physical server hosting HMC VM
  9. Shutdown storage
  10. Shutdown Tape Library


SAP Infra start up procedure

  1. Start Tape Library
  2. Start storage
  3. Start Dell host
  4. Start HMC VM
    Note: After storage, wait for 15-20mins for start physical hosts
  5. Start primary physical host
  6. Start seconday physical host
  7. Start primary VIOS server
  8. Start secondary VIOS server
  9. Start Database primary LPAR.
  10. Start Database secondary LPAR.
  11. Start NFS and Database servers as per Pacemaker start and stop for Hana DB and application servers
  12. Start the Application Primary LPAR
  13. Start the Application Secondary LPAR
  14. Start APP services in Primary & Secondary nodes as per Pacemaker start and stop for Hana DB and application servers
  15. Start all the LPARs
    Note: Backup LPAR should start last

Refer:


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