Dataguard · RAC · RMAN

Copy Datafile from Physical Standby to Primary – RMAN

If you have a corrupt datafile on production system you can perform the recovery using the dataguard sysem. You can backup the datafile from dataguard system to the primary system using rman. It is like copying the datafile over the network and registering that copy on the primary database and switching the corrupt datafile with… Continue reading Copy Datafile from Physical Standby to Primary – RMAN

Oracle · Oracle Grid Infrastructure · RAC

Move ASM instance spfile to an ASM diskgroup

Today my grid infrastructure installation failed and I had to set up ASM on my own not using the installer. The same situation may happen If you lost the diskgroup containing the ASM spfile. For solving the problem The only thing I need was an ASM instance and a diskgroup for my spfile. I created an init file… Continue reading Move ASM instance spfile to an ASM diskgroup

Oracle · Oracle Grid Infrastructure · RAC

Oracle HAS setup after Hostname and IP change

On my laptop, I have my virtual machines for oracle ASM and oracle RAC. I cloned one of the ASM single instance virtual machine and changed its hostname and IP adress to a new one. After I made the change the¬†database and the asm instance did not start. I learned that I had to¬†reconfigure the… Continue reading Oracle HAS setup after Hostname and IP change