Sybase is adamant that we should not use the AIX JFS. We could have data integrity problems. They won't get specific on how an why. Oracle uses JFS and works just fine. Sybase also installs by default using NT file systems. What gives? We have been testing on a small AIX box using the Journal File System (JFS) instead of Raw Partitions. We have tried a number of update processes and have literally pulled the plug on the box. It recovers nicely. I need a straight answer. So far testing has only shown Sybase needs to get their act together. JFS is fast!