What is the best way to lay out the disk_groups for two 3 Tb Solid State RAM drives?

I have two lovely 3 Tb FusionIO SSD RAM disks. If I create them with NORMAL mirroring (in ASM 11.2.0.4 on Linux RHEL 6), explicitly specifying my failgroups, one for each card, via:   CREATE DISKGROUP data2 NORMAL REDUNDANCY   FAILGROUP fioCfailgroup DISK   '/dev/fioc1' NAME diskc1,   '/dev/fioc2' NAME diskc2   FAILGROUP fioDfailgroup DISK   '/dev/fiod1' NAME diskd1,   '/dev/fiod2' NAME diskd2   ...;   I end up with: select group_number g#, name, type, total_mb, free_mb, cold_used_mb, required_mirror_free_mb, usable_file_mb from v$asm_diskgroup;   G# NAME TYPE TOTAL FREE_MB COLD_USED_MB REQUIRED_MIRROR_FREE_MB USABLE_FILE_MB