How much perforamance increase does the open-e software utilize with additional system memory or will it base the performance more in the RAID cards cache?

I ask because we have evaluated DataCore, there software will utilize about 80% of system memory to increase performance and I wonder Open-e is designed to utilize the memory on the server for the same type of performance increases.


Is open-e 64bit or 32 bit linux, I ask trying to understand if 64 bit processors would benefit?