1. I have a farm of web servers, two of them write the same supercolumn full of various data (day 100 columns), can the various columns end up mixed and matched within the super column? I know there is no real form of transaction, but if i'm using batch_insert do they all go in consistent? or is it a race against the batch insert on the other machine where various columns from both machines may end up mixed and matched?
2. each cassandra node essentially has the same datastore as all nodes, correct? So if I've got 3 terabytes of data and 3 cassandra nodes I'm eating 9tb on the SAN? are there provisions for essentially sharding across nodes... so that each node only handles a given keyrange, if so where is the howto on that?
