Things to consider when implementing/using Multi-Instance Redo Apply(MIRA).

Dear Readers, Trust you are doing well!!! Today I am going to write about interesting feature being introduced in Oracle version 12.2 & widely used in 19c. Multi-Instance Redo Apply(MIRA) Basically Oracle has different ways to apply redo on standby site. SIRA: Single Instance Redo Apply ==> Wherein MRP runs […]

./roothas.sh -postpatch OR root.sh failing with CLSRSC-400: A system reboot is required to continue installing.

Recently I was doing fresh Grid Infrastructure(GI) 12.2 install on one of our UAT boxes, wherein I was facing strange issue. Both “root.sh” & “./roothas.sh -postpatch” exiting with below error/warning: CLSRSC-400: A system reboot is required to continue installing. test-server01:/u01/app/ # cd $ORACLE_HOME/crs/install test-server01:/u01/app/ # ./roothas.sh -postpatch Using configuration parameter […]

ORA-27054: NFS file system where the file is created or resides is not mounted with correct options

From last two days, I have been getting “ORA-27054: NFS file system not mounted with correct options” error while running an RMAN backup to a Sun ZFS Storage Appliance. This error have been observed particularly, while taking controlfile backups. RMAN datafile or archivelog backups without controlfile were running fine. RMAN-08132: WARNING: […]