I will give the 2nd level z/VM WebSphere caveat here.
Running a test z/VM under your primary z/VM and THEN running WebSphere (On z/VM
5.1 and above, in our experience) your performance for WebSphere will
be beyond abysmal. Things that take 2 seconds on first level were taking 2
minutes, sometimes more as a second level z/VM guest.
Other than that, found no problems.
David Boyes <[EMAIL PROTECTED]>
Sent by: Linux on 390 Port
<[email protected]>
To
[email protected]
cc
01/22/2007 06:44 AM
Subject
Re: VM
test platforms
Please respond to
Linux on 390 Port <[email protected]>
I'll second this. In 20+ years of running VM, I can remember only two
cases where something worked differently 2nd level than it did 1st
level, and in at least one case, there was a reason for it.
Unless you really have to be 197.34% paranoid about such things (you're
launching missiles or running 47 zillion pacemakers or something like
that), you're plenty safe testing 2nd level. It's lots less hassle, and
the ability to do testing during the day is just too cool to pass up.
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