datafile size

Hi  

Last week, while creating a new datafile for an expanding tablespace I received the ORA-00059 (max number of db_file exceeded). The DB is used in a 24/24 env. So I can't easily plan a bounce to change my db_files parameter from 151 to 250 for example.  

Now, I'm wondering if the actual datafile size set by the previous DBA on this DB, which is 4 Gb, is ok or if I could start increasing this size to 8Gb for example. I normally set my datafile size to be a portion of the disk size so that I can easily move datafiles around if needed. But here, the disks are stripped on a big 900 Gb array. So the need to keep the datafile size down is not really relevant anymore.  

This DB is approx. 600 Gb and growing of approx. 1 Gb every 2 weeks.  

Here are my questions:

• What would be the best max size for my datafiles?
• What sizes are you guys using?
• What should I take into consideration when deciding this?

Thx in advance

Daniel  

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