Yes there is; you can purchase a memory expansion kit from Oracle that gives you a total of 144GB RAM per database server. With the upgrade, the RAM itself runs at a slower speed however: 800MHz rather than 1333MHz.
Thanks so much
what about Storage level i read there are new Storage HW can be attached to Exadata Storage Server which let you still take benefit of Exadata feature.
am i right or i got that wrongly
you mean the Storage Expansion itself not the Memory Expansion?
Good Startpoint is here: