Not sure what your end setup will be, but I would probably just spin up a cluster and fill it with typical data to and measure the size on disk.
______________________________ Sent from iPhone > On 7 Dec 2013, at 6:08 am, John Sanda <john.sa...@gmail.com> wrote: > > I am trying to do some disk capacity planning. I have been referring the > datastax docs[1] and this older blog post[2]. I have a column family with the > following, > > row key - 4 bytes > column name - 8 bytes > column value - 8 bytes > max number of non-deleted columns per row - 20160 > > Is there an effective way to calculate the sizes (or at least a decent > approximation) of the bloom filters and partition indexes on disk? > > [1] Calculating user data size > [2] Cassandra Storage Sizing > > -- > > - John
