Oracle Error Message
ORA-15072: command requires at least string regular failure groups, discovered only string
Reason for the Error
An attempt was made to create either a normal redundancy diskgroup for which fewer than two regular failure groups were both specified and discovered, or a high redundancy diskgroup for which fewer than three regular failure groups were both specified and discovered, or an external redundancy diskgroup for which only quorum disks were both specified and discovered.
Solution
Check the that the command does specify the required number of failure groups, and that all of the specified disks are discovered by ASM. A query of the V$ASM_DISK fixed view will show which disks are discovered by ASM. Note that a quorum failure group will not be used as a regular failure group. An external redundancy diskgroup requires at least one regular disk.
