On 31/10/2012 21:01, Radoulov, Dimitre wrote: > [...] > 2. Disk group dg_data: > 4 LUN (the size will depend on application > needs) for data. [...] It >= 4 LUNs. This requirement is based on a recommendation in the official documentation (see goo.gl/hDCpt): Recommendations for Storage Preparation [...] A minimum of four LUNs (Oracle ASM disks) of equal size and performance is recommended for each disk group. Regards Dimitre -- //www.freelists.org/webpage/oracle-l