On Saturday 22 January 2005 18:11, Tab Trepagnier wrote:
> Dave,
>
> Thanks for the suggestions.  I do have a test system so I will look into
> trying turning off the JFS2 log.
You can also mount the jfs2 file system with the cio (concurrent io) option
(you have to edit /etc/filesystems).  I have a paper with oracle tests and a
jfs2 file system mounted with cio is allmost as fast as a raw logical volume.
Everytime we tried this, the oracle databases had allmost no i/o bottleneck.
But I also know that you have to watch out because some type of oracle
database can be corrupted if they are placed on a cio enabled jfs2 file
system.


Stef