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--++ 10g RAC on Linux, removing cluster nodes

Please see also the installation procedure in Installation procedure

Stop Oracle services on the node to remove from the RAC cluster

  • relocate services running on the node to be evicted to other cluster nodes, when relevant
  • check that you have ocr backups (and take one if needed) with: ocrconfig -showbackup
  • run:
srvctl stop instance -d .. -i ..
srvctl remove instance -d .. -i ..
srvctl stop asm -n ..
srvctl remove asm -n ..
srvctl stop nodeapps -n ..

..as root:
srvctl remove nodeapps -n ..
crs_unregister ora.<nodename>.vip
crs_unregister ora.itrac40.<listener_name>.lsnr
  • check ifconfig -a and set ethX:Y down if needed

Remove DB ojects and parameters related to the evicted node

  • connect to the db
  • if in archive log make sure the logs from the deleted instance are archived * select * from v$log where thread#=X; * if needed: alter system archive log all; + check again that logs have been archived
  • alter database disable thread X;
  • repeat for all the groups belonging to the disables thread: * alter database drop logfile group YY;
  • drop tablespace undo...; (drop the undo tablespace forthe removed instance)

alter system reset local_listener scope=spfile sid='XX'; alter system reset thread scope=spfile sid='XX'; alter system reset undo_tablespace scope=spfile sid='XX'; alter system reset instance_number scope=spfile sid='XX';

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Topic revision: r1 - 2006-08-02 - LucaCanali
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