AIX concurrent I/O in database environments

aixdude_at_yahoo.com
Date: 07/07/05

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    Date: 7 Jul 2005 06:54:40 -0700

    I am interested in feedback regarding I/O in database environments.
    We are running Oracle 10g on a p5 system at AIX 5.3ML2 using JFS2.
    Disks are EMC Clariion running raid 1/0, with EMC PowerPath, McData
    switches in SAN environment.

    I have read the excellent article below, but would like comments from
    the "real world".

    http://www-1.ibm.com/servers/aix/whitepapers/db_perf_aix.pdf

    Which database components (data tables, tran logs, redo log, rman
    backup areas) benefit most from concurrent I/O, direct I/O, or standard
    file buffer cache? We will be using JFS2, so I don't want to start a
    war over raw volumes vs JFS2 with concurrent I/O.

    Thanks in advance for your time and comments.

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