Re: Performance issues moving from AS400 model 53S V3R7 to S

[gmurphy@xxxxxxxxxxxx]

        When you added the 40 gigs, did you add another disk controller 
     card as well?  I remember when we went from a B70 to an F80 (a few 
     years ago), we added a whole bunch of disk space, but the F80 only had 
     one controller card.  The I/O bottleneck made the system somewhat 
     slower than the B70. When we added the 2nd card, system performance 
     improved considerably.
     
     Guy Murphy    FACTS system - UDIS Dept.
     phone         217-333-8670
     e-mail        murphyfa@uiuc.edu

     


______________________________ Reply Separator _________________________________
Subject: Performance issues moving from AS400 model 53S V3R7 to S3...
Author:  <MIDRANGE-L@midrange.com > at INTERNET
Date:    8/7/98 1:05 PM


Subject: Performance issues moving from AS400 model 53S V3R7 to S30 V4R2 
Hello all:
     
Has anyone made this upgrade in the last year?  We did, and we can hardly see an
improvement at all.  We were running V3R7 on a 53S and upgraded to V4R2 on an 
S30, adding 40 more gigs of disk and twice the ram as before.  We were told the 
new processor was to be about 240 times faster, but it hardly seems 10 times 
faster and indeed, some processes run slower than before.  We have had IBM in 
for the last two weeks running tests and analyzing the results and they say 
nothing appears to be wrong.  I just thought there might be someone else out 
there who made a comparable upgrade and might be able to tell me how much of a 
performance increase they saw.
     
Any info would be greatly appreciated.
     
Thanks,
     
Steve Roach
Manus Direct
Seattle, WA
     
     
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