Hello,

I am working for a company that has an iSeries 520 that has 8gigs of memory
and a terabyte of storage. My chief job here is development. In a previous
job I developed and took care of several machines (beige boxes and a 520).
The box is having performance problems especially SQL jobs run very slow.

It was my understanding that the basic machine setup should include shared
memory pools and the subsystems should then be assigned to these pools.
Each pool having reserved memory. The people who take care of the machine(s)
are of the opinion that the sub-systems should just run out of *base.

They also are of the opinion that running the performance tools and
associated utilities to report back to IBM about problems and performance
are not worth setting up. (This explains why they have been down three
times in the last 4 months). I am of the opinion that they need PT running
so they can at least get a baseline on the performance of the box.

I have been told that the auto tune feature on the box, when they turned it
on, did a very poor job and in fact caused more problems than it solved.

Additionally they added another 8 drives in an external cabinet and did not
balance the data over the new drives from the old drives. the old drives
are 91+% full while the new drives are at about 20%. I believe this is a
big problem but have failed to convince them.

Any comments will be appreciated and any advice is welcome.

Thank you in advance.