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Add disks to ASM

With the Grid environment variables set, run the following command: ./u01/app/oracle/21.0.0/grid/bin/asmca The ASM graphical configuration screen will appear; click on the "Disk Groups" option. Select the disks that will belong to the disk group you are creating. These are the disks listed as "candidates" in the second column. Select disks of the same size.
Oracle ACE Associate