RE: Typical PC Guy question - and request for RFB contacts -- MIDRANGE-L

Hard to say unless you figure out where your contention is coming from
first.  Generally, you should notice a lot better performance just from the
hop in model.  However, the 17G DASD has me scared you'll be at only 1 disk
arm (active - should be mirrored to another 17 Gb drive) while your old
system leads me to think 4x 4 Gb drives with RAID-5.  So you may have an
increase in drive contention.

However, generally speaking you should notice an increase in performance.  A
detailed analysis of contention would need to be done first to figure out
for sure what kind of numbers you'd get.

jch

ps - did you mean "to it's knees"?
pps - be prepared for a barrage of e-mails.

-----Original Message-----
From: Anthony Hardy [mailto:mis@jdcc.edu]
Sent: Wednesday, December 04, 2002 3:38 PM
To: midrange-l@midrange.com
Subject: Typical PC Guy question - and request for RFB contacts


This is a multi-part message in MIME format.
--
[ Picked text/plain from multipart/alternative ]
I, having very little AS400/iseries experience am in charge of our current
AS400.  I understand fully the impact in performance when I talk in
Megahertz, RAM, etc. and have learned a decent amount of IBM lingo, DASD,
main memory, CPW, etc.

My question is this .  .our third pary vendor recently made a needed change
to our administrative software which has our current system at its needs.
We are a higher ed. institution and we have students waiting 3-4 minutes for
fees to process.

Our current machine is a model 600-2129 , 22.7 SHARED CPW, 192 main mem. and
12G DASD.

I am looking at a refurb 170-2291, 115/25 CPW, 512 main mem and 17G DASD.

Disk space is not an issue for me . .the ONLY thing this box is used for is
this ONE third party app (no web, mail, storage, etc).  I have been told
that this 170 config will push me to the top of the P05 group (don't want to
go P10 for budgetary reasons).

My questions are this:

1. What kind of performance increase am I looking at generically.  I know
you can't give me exact figures, but in generic terms, are we talking about
moving from a 386 to a pentium here?  maybe better?  I have some performance
figures on this box . .but i'm really not interested in specifics . .just
trying to get an overall feel for CPW ratings and the difference they make.

2. I need to bid out this project (the hardware, license transfer and data
move).  If you handle this type of thing, please send me your contact
information, including name, address, phone, fax and email.

Sincerely,

Anthony Hardy
Director of MIS/Enrollment Management
Jefferson Davis Community College
(251) 809-1531
--

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