number of partitions

[Andrew Bacchi <bacchi rpi edu>]

Is there a max limit to the number of partitions I can have on a
system?  I have a RAID 1 system disk array and a large RAID 5 data
array.  I would like to cut up the data array into some number of
partitions.  I thought I heard of the max being 15 partitions for both
system and data.  Thanks.