Oracle OFA, Tablespaces and Redo Logs?

Hi Gurus,

I was reading Oracle DBA Handbook and read article about OFA - Optimal Flexible Architecutre and it showed what are the different tablespaces used in any db. These are: SYSTEM, UNDOTBLSP, TEMP, INDX, TOOLS, USERS, DATA. Q1) What should be the approximate size for each tablespace....? How many MIN/MAX Extents should I need to allocate....?

Q2) What would be the difference between DATA Tablespace and USERS Tablepsace?

I was reading Oracle DBA Handbook- Kevin Loney and have some questions on it:
In one of the section (Chapter 4 - Section - Online Redo Log Files) it says: "DBA's need to make sure that the online redo log files are mirrored by some means" and I totally agree with that. It means (if I am right) if my Redo Log Group has 3 files then these files should be on different disks.

However, later on in the same chapter (Chapter 4, Section Third Iteration) the book says:"The online redo logs should be placed together on the same disks" do'nt you think it is contrary to the above statement - isin't it misleading....? Kindly clarify orcorrect me!

Thanks! Received on Mon Jun 30 2003 - 23:20:17 CEST