agree - most sstables use memory looking on disk if needed. ssds do not have the bandwidth or low latency RAM has apart from the additional I/O path to get it o

agree - most sstables use memory looking on disk if needed. ssds do not have the bandwidth or low latency RAM has apart from the additional I/O path to get it onto or out of disk. Now, not to say memory+ssd can't rock ... but ssd!=DDRAM.