Is there difference in calculation of max size of file system and max size of file?

Question

Given disk block size, disk block address size, number of direct and single, double, triple indirect blocks.

n = ( No of direct addresses + (db size/dba) + (db size/dba)*(db size/dba) + (db size/dba)*(db size/dba)*(db size/dba))*dbsize

Is n = max size of filesystem or max size of file? How do we calculate the other parameter?

Thanks.

Answer 1

Here n  will just give you  " size of file system", and  if you want to find... max. size of file  then use it ---->   max. size of file =  (# block pointers in triple indirect ) *Block size=[(D.B size)/(D.B.A size) ]³*D.B size !!