This is accomplished by running scripts on the deleted node to remove the CRS install, as well as scripts on the remaining nodes to update the node list. Once the instance has been deleted, the process of removing the node from the cluster is a manual process. Warning: /etc/sysconfig/oracleasm saved as db]# rm -f db]# rm -f db]# rm -f db]# rm -f db]# rm -f db]# rm -f db]# rm -f db]# rm -f db]# rm -f /etc/rc6.d/*oracleasm* Remove the ASM library on db]# /etc/init.d/oracleasm stop Srvctl config asm -n dbca]$ srvctl config asm -n db05 –the output is nothing instead of show you the ASM instance name and asm homeĭelete the ASM folders on deleting node: rm -r admin]# rm -rf +ASM Srvctl remove asm -n dbca]$ srvctl remove asm -n db05
Srvctl stop asm -n dbca]$ srvctl stop asm -n db05 If this node had an ASM instance and the node will no longer be a part of the cluster you will now need to remove the ASM instance with: Srvctl config database -d dbca]$ srvctl config database -d p10cġ1. Verify that the instance was removed from the OCR (Oracle Configuration Repository) with the following commands: If for any reason the redo thread is not disabledġ0. Verify that the dropped instance’s redo thread has been removed by SQL> alter database drop logfile group 2 ĩ. The logs for the deleted instance and dropt the log group. Ignore button and when the DBCA completes, manually archive But previous to this patchset you should click the This may occur because the DBCA cannot drop the current log, as If your database is in archive log mode you may encounter theįollowing errors (10gR2 doesn’t have this issue): Set “not used” for each service regarding the instanceĨ. Services so that each service can run on one of the remaining If you have services configured, reassign the services. Highlight the instance you would like to delete then click next.ħ. On the next screen, a list of cluster database instances will appear. Supply the system privilege username and password.Ħ. On the next screen, select the cluster database (p10c) from which you will delete an instance. Leave the database up and also leave the departing instance up and running.ĥ.
Run DBCA from one of the nodes you are going to keep (db01). Run the backup manually with dd for OCR and Voting ocr_voting]$ ocr_voting]$ dd if=/dev/raw/raw1 ocr_voting]$ dd if=/dev/raw/raw2 of=before_del_3rdnode.voteĢ. Verify that you have a good backup of the OCR (Oracle Configuration Repository) using ocrconfig -showbackup or dd command. Reconfigure the OS and remaining hardware.ġ. The most important 3 steps that need to be followed are Ĭ. We have to remove a node from Oracle 10gR2 RAC.
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