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
