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Sun 420 slugish after removing 2 CPUs

Posted on 2003-11-21
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Last Modified: 2013-12-27
Hi,

We want to run a 420 with the 4 GB but with only 2 CPUs.  We are running: SunOS qadb02 5.8 Generic_108528-21 sun4u sparc SUNW,Ultra-80.

When we boot the system up, we are having very sluggish performance.  Do we need to do something additional to re-config the OS?  Will sys-unconfig work?  I'm guessing that the OS still thinks there are 4 CPUs there, no?

Thanks for any help!
-Brian
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Question by:bgodden
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shivsa earned 1000 total points
ID: 9800525
try to see all the cpus with
psrinfo
------
see how many it shows.
else run this command to see more information about cpus.

/usr/platform/`uname -i`/sbin/prtdiag -v ( in your case it must be /usr/platform/sun4u/sbin/prtdiag -v ).

try to see who is using most of resources on the system with top utility.
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by:bgodden
ID: 9800716
My guess was right, we reset the OS config manually and it came up happily.  Good suggestion for investigation tho, I'll give you the points in good will. :-)

-Brian
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