RE: Why is the iSeries so slow

The machine I pulled the big save file from has an integrated Netfinity 
server, so that's not the problem. Sitting there in Napa, you're just too 
close to Redmond. 

:-))



Paul Nelson
Arbor Solutions, Inc.
708-670-6978  Cell
pnelson@xxxxxxxxxx




Ken.Slaugh@xxxxxxxxxx
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08/13/2003 09:47 AM
Please respond to Midrange Systems Technical Discussion

 
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        Subject:        RE: Why is the iSeries so slow



Marty...
      I do believe you have tripped on the same issue. The dual Token Ring
and Ethernet adapters is certainly the most reasonable situation discussed
so far and we certainly have exactly this situation.

      I guess this brings up the next question... Why? If this impairs
throughput so badly then why is it supported or why doesn't it get fixed?

      This certainly looks like a good reason to avoid the integrated
Netfinity server as well with it's virtual T/R adapter. :)

      Too bad the iSeries still doesn't play well with others. It a great
place to store the data, but if you can get the data off the disk then
what's the point?

Ken Slaugh (707) 795-1512 x118
Chouinard & Myhre, Inc.
CA/400 Certified Specialist
iSeries Network/MSE Administrator
http://www.cm-inc.com/


  
                      "Urbanek, Marty"  
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iSeries so slow 
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I agree. The iSeries is also an excellent box for doing mucho concurrent
legacy communications (SNA, bisync, X.25). It smokes the PC in that
respect,
especially when you consider it can still do all that and support an 
"open"
TCP/IP stack, SMB for Windows, etc.

The iSeries is great at the things it has done traditionally and getting
better at the new things it has been asked to do. However, the iSeries
still
makes a lousy PC and a lousy UNIX machine. In one single box you've got 
far
more capability and interoperability than any other platform, but not
performance, and not price/performance, unless you're willing to consider
"TCO" which is usually not the case. In my opinion, of course.

(Man, after two months away from midrange-l because I have been too 
swamped
at work, what do I do the first day back but jump into one of these
irresistable but pointless conversations.)

Regarding the gentleman's original question: SOMETHING IS WRONG. I
routinely
move a 120MB file and it only takes a couple of minutes. Check the duplex
seeting like others suggested. You might try hard-coding the duplex and
speed settings on the switch as well, rather than allowing the
auto-negotiation. Our network guys swear by that. I have also had horrible
throughput on a box with both T/R and ethernet interfaces active at the
same
time. Always suspected a routing problem but no time to prove it - I just
disable one of the interfaces. Having both interfaces up caused throughput
as bad as you are talking about.

-Marty

----------------------------------------------------------------------

date: Wed, 13 Aug 2003 01:27:05 -0500 (CDT)
from: Scott Klement <klemscot@xxxxxxxxxxxx>
subject: RE: Why is the iSeries so slow

...
But, on the other hand, there are many good things about OS/400.   The way
CL commands work with their parameters, and prompting, and help is
excellent.  The integrated database is wonderful.   The ease of creating
applications with DDS screens and RPG programs that do all sorts of
complex business calculations is really unmatched.
...
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