From: Stephane Dupuis (SDUPUIS@BOUYGUESTELECOM.FR)
Date: Fri Oct 04 2002 - 04:15:37 EDT
Hi again,
>I'm not sure what he used, but IBM's nmon gives you kB/s per adapter.
>Kevin Adams
>Curious, how did you come up with these numbers? I can't think of any tools
>that tell could tell you that, short of a third-party product.
>Jonathan Fosburgh
>AIX/SAN Administrator
>Communications and Computer Services
>UT MD Anderson Cancer Center
>Houston, TX
>IBM Certified Specialist - AIX v4.3 System Administration
In fact, theses tests are made with a program someone wrote here called
iobench.
Anyway, theses results (130 MB/s) are trustworthy. I also check with the
topas command
and the results are the same.
>What model server are you using?
It's a P690 in LPAR mode. I'm using 4 cpu (1,3 Ghz) et 16 GB of ram.
While the test are runing, the cpu is 95% in waiting IO, so I really
don't think It's can be a problem of cpu power.
By the way, If I try to use 2 FC6228 (with SDD), I can reach about 230 MB/s.
This made me think I have maybe a configuration problem, or maybe
the FC6228 can't do more than 130 MB/s, but I think it's a bit low...
2 GB should do about 200 MB no ? :) Or at least 160-170...
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