I've just installed SL4.1 on a dual opteron 6.4TB disk array system. This is my first disk array, so I'm full of questions. The disk array is configured as one large disk partition. At 5.6TB, it's larger (according to what I've read) than what ext3 can handle. So, I'm thinking of putting either JFS or XFS on the system. SL4.1's stock kernel does not have built-in JFS nor XFS support. But there is a contributed XFS rpm. Is this the preferred filesystem for large partitions? If so, why? I don't know the history of XFS, but I first encountered JFS in the late 80s when I worked on an AIX machine. Also, I read on the web that JFS has better performance than XFS. Comments?? Ken