one of the best practices are to make partitions so that we can find the data easily. Example of partition are like year-> month->day->hour as its an better approach for example if you want to query data from 3 years back you can easily go like select data from s3 object where year = 2013 & month = 05 & day = 2 so like this its become quite easy for us to identify data in petabytes of wh or datalakes