load balancing servers

tlarkin
Honored Contributor

Anyone done this with casper yet through the JSS? I want to have multiple netboot and image servers in one subnet and use mass edit for the auto run data. So I have two servers set up, both on the same subnet but with different IP ranges on different DHCP ranges both behind NAT routers.

As far as I can tell, the JSS will point new netbooting clients to the other server, but how will it know to do so, and at what point does it start to auto balance?

thanks,

Thomas Larkin
TIS Department
KCKPS USD500
tlarki at kckps.org
cell: 913-449-7589
office: 913-627-0351

7 REPLIES 7

tlarkin
Honored Contributor

10.5.2 has tons of network log in issues. We are all running 10.5.3 on
server and client. I will roll out 10.5.4 with version 6 of casper
probably as a self service policy once I test it to make sure it works
in our environment.

Thomas Larkin
TIS Department
KCKPS USD500
tlarki at kckps.org
cell: 913-449-7589
office: 913-627-0351

Bukira
Contributor

Hi,

If you make the netboot id above above 4096 and put the image on both netboot servers as their default image, then the netboot servers will auto load balance between the two, the client will pic the quickest image to boot from.

Criss

Criss Myers
Senior Customer Support Analyst (Mac Services)
Apple Certified Technical Coordinator v10.5
LIS Business Support Team
Library 301
University of Central Lancashire
Preston PR1 2HE
Ex 5054
01772 895054

dustydorey
Contributor III

Hey quick question on that, we have two different netboot images up on
our netboot servers, a 10.4 image that the PPC machines netboot to and a
10.5 that the intels netboot to. That was the easiest division I could
think of to make sure that all machines netboot w/o and issue as about
half of our PPC machines would not be able to run leopard. In any case
I'm wondering if load balancing in the manner you were talking about
would still work if I have multiple servers that are all identical with
the ID's all above 4096 for all netboot images? Or will it only work
if there is one image? Also will this work across subnets the same?
We currently are netbooting across subnets but only to one server.
Sorry for all the questions and thanks in advance!

Dustin Dorey

Technology Support Cluster Specialist

ISD 196 Apple Valley, Rosemount, Eagan

14445 Diamond Path West

Rosemount, MN 55068

(952) 423-7971

dustin.dorey at district196.org

Bukira
Contributor

HI Dustin

Why dont you have 1 image that boots PPC and Intel, 10.5 can boot both,

As far as the netboot servers are concerned, ID numbers above 4096 can
be servered from mulitple servers, doesnt have to be the default image,
as long as the same image is on more than 1 server, the client will only
detect the image once and when it requests it it will get it from the
server that responds first, it should work across subnets as well no
problem.

Criss

Criss Myers
Senior Customer Support Analyst (Mac Services)
Apple Certified Technical Coordinator v10.5
LIS Business Support Team
Library 301
University of Central Lancashire
Preston PR1 2HE
Ex 5054
01772 895054

dustydorey
Contributor III

We have some pretty old machines that we still have to service here and
I guess I was under the impression that they wouldn't boot 10.5 if I
couldn't install 10.5 on them to begin with such as some of the early
eMac incarnations and such. But I never tried either.

Dustin Dorey

Technology Support Cluster Specialist

ISD 196 Apple Valley, Rosemount, Eagan

14445 Diamond Path West

Rosemount, MN 55068

(952) 423-7971

dustin.dorey at district196.org

John_Wetter
Release Candidate Programs Tester

We've had a lot of issues trying to netboot older G4's and any G3's we still have around. Seems anything ppc older than the last generation has issues. We set our 10.5 netboot to 'intel' instead of 'universal' just for this reason and kept a 10.4 netboot.

-John

On 7/11/08 8:06 AM, "Dorey, Dustin" <Dustin.Dorey at district196.org> wrote:

We have some pretty old machines that we still have to service here and I guess I was under the impression that they wouldn't boot 10.5 if I couldn't install 10.5 on them to begin with such as some of the early eMac incarnations and such. But I never tried either.

Dustin Dorey
Technology Support Cluster Specialist
ISD 196 Apple Valley, Rosemount, Eagan
14445 Diamond Path West
Rosemount, MN 55068
(952) 423-7971
dustin.dorey at district196.org

Not applicable

Same for us regarding G4s being touchy about netbooting to 10.5.2. Sorta on topic......we are still running 10.5.2 Server for both netboot and JSS. Anybody liking 10.5.3 or .4 better for either or both? Any
new problems or hiccups if you are running newer than Server .2?

Thanks,
Matt