I'm setting up a new system here and I want to get the best possible performance, the platform is Linux 2.4.18 (SuSE 8.1) and I have two fast disks for putting the log on, but how?

Option 1: Create a mirror of the two devices and use the mirror in raw mode as a single log device (LOG_MODE SINGLE)

Option 2: Create two raw devices and let SAP DB use them in LOG_MODE DUAL.

Is SAP DB smart about what data it reads from the two disks or will I be better of letting the OS handle the mirroring?

--
 Regards Flemming Frandsen - http://dion.swamp.dk
 PartyTicket.Net co founder & Yet Another Perl Hacker

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