Journal ASPs

We have 4 AS/400s with 30 - 120 GB of RAIDed DASD on each.  2 of the 4
systems have journal ASPs.  Ideally we would like to have all 4 systems
the same.  IBM used to recommend a seperate user ASP for journalling
for     performance and protection.  Now with RAID they seem to be saying
that the benefits are no longer there, is that true?  What is your
experience?  Do you have a seperate user ASP for journalling?  Are you
going away from or towards journal ASPs?  Is this a decision that you
can make for all of your systems or do you decide
system by system?  What do you use as your criteria for creating a
journal ASP?

Thanks,
-- 
Gordon Searles
Senior Systems Programmer
Recreational Equipment, Inc. (REI)
Quality Outdoor Gear and Clothing Since 1938
http://www.rei.com
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