Use the Automatic Storage Management (ASM) volume manager or other volume manager to concatenate multiple flash memory module domains. For example, a volume manager can be used to concatenate four 200 GB domains into a single 800 GB volume. A volume manager can also present multiple SSD cards as one larger volume.
Refer to the documentation for more information at: http://docs.oracle.com/cd/B28359_01/server.111/b31107/asmcon.htm#OSTMG036