Hey Thomas:
I just did a DTrace class on SunRays last week at an internal Sun Event,
We used VMWare SXE as the backend and created individual Virtual
machines for each participant. We had two pretty large servers at our
disposal so it worked ok. Please let me know if you need details but as
a summary these virtual machines showed up as separate machines
and we used DHCP and SRS magic to map them to individual Sunray
desktops.
Some advantages:
* We were able to accomplish with two machine what would have
taken 24 desktops
* We used snapshot & rollback to reset the class and ran it again
in 30 minutes for 24 more participants. Pretty easy to do.
Some disadvantages in this approach
* It was pretty heavy weight. We had two systems with 64GB of ram
many cores. So nor sure how well it scales for you.
* We had many copies of the same exact image on the server. It
all seemed a huge waste of disk space.
* Every on accessed the same server so there were network issues.
that made it a little hard for a few.
Why not use Virtual Box?
I've also set up my class on virtual box. The idea here is to create a
virtual box image with everything setup. Then let the students copy the
image into their laptops and use virtual box to run off it. This way
they
get a "take way" once they are done with the class. I've setup such an
image with OpenSolaris.
My DTrace class has over 16 exercises and is self running. It has
material
on C, C++, PHP, JavaScript, Java, Java 7.0 Java DTrace Api, chime and
DTrace C API among other things. With all this set up the Virtual box
image was about 3GB.
You are more than welcome to reuse my material and the virtual box
image.
Please let me know if I can be of any help
Angelo
On Aug 11, 2008, at 1:55 PM, Thomas Nau wrote:
> Dear all.
> Will a SunRay server work for doing a introduction class on DTrace
> or will
> there be conflicts if about 15 people launch similar scripts at the
> same
> time?
>
> Thanks for your help
> Thomas
>
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