Linux & Disk configuration with Oracle 8i

We will soon install Oracle 8i on a new Linux box with a RAID controller. We've selected Raid Level 1 (mirroring) so that initial four disks have become two mirrored disks. Documentation and the Oreilly books recommend:

-Separate disks for data, redo logs, archive files
-Separate disks for data and index tablespaces
-Separate disks for rollback segments
-System tablespace on a separate disk or a lightly used disk.

The question: With only two disks, how would you configure Oracle for maximum throughput? (e.g.=. should you use one disk for the tablespace data and one disk for everything else, or would it be better to have the rollback and tablespace data on different disks, etc.)

On a more general note, does anyone in the linux world implement an *ideal* disk layout--i.e. 14 different disk drives, with system, data, redo logs, rollback, archivelog dests, etc. each with their own drive (see Kreines & Laskey's Oracle Database Administration, O'Reilly, p. 209)? Mirroring would bring your total to 28 different disks? Is this configuration even possible in the Linux realm?

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Before you buy. Received on Mon Jan 24 2000 - 13:14:25 CST