Re: datafiles and RAID5

Hi:

Check my homepage below. There is a good discussion of RAID performance, plus equations to estimate read and write performance based on the number of drives and RAID0/1/5 config. The site is specifically about NT, but the same rules apply for UNIX.

Regards,

--
David C. Sisk
http://www.ipass.net/~davesisk/ORACLEonNT.htm


opus wrote in message <36488713.2A8D_at_nowhere.ca>...


>Hello all,

>

>Just getting a new system up and running and we're going to have a RAID5

>configuration on a Unix machine HP-UX 10.20(I know, I know, Oracle

>doesn't recommend it).  Has anyone seen any sites or articles on Oracle

>and RAID5?  Are there any specific design considerations I should worry

>about?  For instance, I figure I don't have to worry about where my

>datafiles are going as it's all gonna be striped.  If I have a 10 gig

>database, does it matter if I have 1 big 10G datafile or should I split

>it into 10 files of 1G each?

>

>Any thoughts anyone has would be greatly appreciated as this is the

>first time I've done this on a large box.  Up until now our databases

>have been very small on non-raid unix machines.  Please respond in the

>newsgroup as my email address is incorrectly posted (for the usual

>reasons).