Home > Workload Solutions > Oracle > White Papers > Oracle ASM on ScaleIO Best Practices > Controlfile configuration
With the Oracle standard recommendation of two ASM diskgroups – DATA and FRA, many DBAs place their database control files with one file in each of the two diskgroups.
Whereas this approach is suitable for many environments, it can cause performance problems if the FRA diskgroup is located in a storage pool that uses high capacity spinning disks.
Control files should be placed on the high performance storage pools only.
With ScaleIO MESH mirroring it is acceptable to place all control files in the same ASM diskgroup.