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  1.  Home
  2. MIDRANGE-L
  3. December 2002

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

I believe you need 4 drives to do RAID 5.
cjg

Carl J. Galgano
EDI Consulting Services, Inc.
550 Kennesaw Avenue, Suite 800
Marietta, GA  30060
(770) 422-2995 - voice
(419) 730-8212 - fax
mailto:cgalgano@ediconsulting.com
http://www.ediconsulting.com
AS400 EDI, Networking, E-Commerce and Communications Consulting and
Implementation
http://www.icecreamovernight.com
Premium Ice Cream Brands shipped Overnight

"You ain't gonna learn what you don't want to know" - rw

-----Original Message-----
From: midrange-l-admin@midrange.com
[mailto:midrange-l-admin@midrange.com] On Behalf Of Anthony Hardy
Sent: Wednesday, December 04, 2002 5:06 PM
To: midrange-l@midrange.com
Subject: Re: Typical PC Guy question - and request for RFB contacts


another note for the masses before i am flooded -

If you wish to send me contact info, please put "JDCC ISERIES BID" in
your subject and send to me directly at mis@jdcc.edu, so as not to flood
the list.

the new box i am reviewing has 2 8.58G drives . . . .thought mirrored is
likely NOT an option as I am currently using 8G or so (just over 70%) on
the current qty3 4G drives . .. .on the RAID 5 setup . .  i would hope I
am ..but there are only 3 drives . . .so . if it works like PC RAID.
then no ... .

I can remove s/36, s/38 environments and the migration and migration
assistants . .not sure how much that will free up . .i'm told quite a
bit . . . which might be enough for me to mirror the two drives . which
would be MUCH better than nothing at least.

I am looking forward to each and every response:).


----- Original Message -----
From: "Anthony Hardy" <mis@jdcc.edu>
To: <midrange-l@midrange.com>
Sent: Wednesday, December 04, 2002 3:55 PM
Subject: Re: Typical PC Guy question - and request for RFB contacts


> yes . hehe . to its knees .  . . .my mind is in top condition today as

> you can plainly see:).
>
>
> ----- Original Message -----
> From: "Justin Haase" <JHaase@jackhenry.com>
> To: <midrange-l@midrange.com>
> Sent: Wednesday, December 04, 2002 3:42 PM
> Subject: RE: Typical PC Guy question - and request for RFB contacts
>
>
> > 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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> _______________________________________________
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