ASM DISK MIGRATION [OCR/DATA/RECO DISK GROUPS] in RAC
Current Disk group as below. You must prepare candidate disks with proper permissions by storage level. Here we are going to add below new disks for each disk group with rebalance power 6 and we can do afd label below disks and assign to ASM disk group using asmca or sqlplus commands. After added new disks to relevant disk groups you may drop the old disks in DATA and RECO disk groups with rebalance power using asmca or sqlplus. But note here, we do not drop old disk of OCR disk group due to existing voting disks. Therefore, you must need to transfer voting disks in to another ASM disk group which has sufficient space. Before moving voting disk check OCR devices and existing voting disk location. Note you need to have OCR mirroring device before move voting disk to another ASM disk group and get a manual backup of OCR. To check OCR device = > ocrcheck To check voting disks => crsctl query css votedisk To check OCR backup=> ocrconfig -showbackup <AUTO|MAN...