I realize that I must sound like a broken record on this topic (or is
that a "broken CD" to today's youngsters? :-), but this is where having
a good Linux and VM performance monitoring and analysis product can
really pay off. Instead of having to do a trial and error approach to
guest sizing, one could look at the memory usage data from the monitor
and be able to make a realistic determination from that.
In today's complex and mission critical systems, having a good
performance monitor and analysis system running is just as important,
imho, as having the proper security manager and policies in place. No
one would consider running a z/VM system out of the box with having
RACF/VM, ACF2, TopSecret, etc. installed as well....the same should hold
for the performance tools available from IBM and Velocity Software.
Have a good weekend, too.
DJ
Rich Smrcina wrote:
A customer has one defined at 96M, no swap.
James Melin wrote:
Greetings everyone.
We're working on separating the HTTP server function from the server
on which WebSphere runs (Network deployment configuration, where HTTPD
was
running on node 1 of the cluster). I know I'll be able to shrink the
guest considerably but I'm really not sure how to look at the memory
allocation
of the process now, under workload, to know how big the guest should
be. I'm guessing it will be under 300 MB but I'd like to do better
than a guess.
We're using the IBMIHS server which is based on Apache.
If anyone has any insight, I'd greatly appreciate it.
-J
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Rich Smrcina
VM Assist, Inc.
Phone: 414-491-6001
Ans Service: 360-715-2467
rich.smrcina at vmassist.com
Catch the WAVV! http://www.wavv.org
WAVV 2007 - Green Bay, WI - May 18-22, 2007
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