At 7:31 AM -0500 8/8/06, GARRISON, TRAVIS J. wrote:
am trying to figure out how to load balance several services across
2 G5 servers. Then main services are Radmind, NetBoot, and workgroup
management.
I'm nto sure what you mean by "WorkGroup Management" here, as this is
something usually not in need of load balancing, it being more of a
control thing.
I need these services to have the ability to fail over to one of
the servers if the other one fails.
Fail over and load balancing are very different concepts in High
Availability Computing.
Would a cluster be the way to go on this and if so, do I need to
purchase the servers designed specifically for a cluster?
There is no true clustering of OS X Servers. The "cluster" XServe is
a bit of a misnomer, itr's just a minimal XServe, one that makes a
good cluster, grid or pool member.
I am finding out that when 25 desktops hit the NetBoot at one time,
there is always around 5 that will fail. I only use NetBoot to image
the computers and pull my image from apache running on the server.
You may want to explore this further first as this should be workable
w/o load balancing the netboot service(s). Have you read the docs
that describe how to apprach this?
I will be joining our servers to our fiber-channel SAN.
Then you may wish to look at XSan, which is a clustered/common filesystem.
You can see a typical HA Load Balanced architectural diagram set up
for a typical load balancing of services (in this case functioning as
an ISP -- but the services could easily be netboot, radmind, etc and
with a backend Fibre Channel data fabric) in our "Diagrams" section
(see "Virtual Internet Service Provider") at http://www.iwiring.net/
At 1:36 AM -0700 8/9/06, Charles Edge wrote:
You should be able to do this using an F5, which might be a little
more expensive than you were hoping.
F5 is a company. They make numerous HA products. The one most
applicable here is the BigIP. They're generally the best in class.
CoyotePoint also makes such appliances as does RADware and a few
others.
HA planing is not something to be undertaken lightly, and I'd suggest
you consult with someone very familiar with such implementations.
--
-dhan
------------------------------------------------------------------------
Dan Shoop AIM: iWiring
Systems & Networks Architect http://www.ustsvs.com/
email@hidden http://www.iwiring.net/
1-714-363-1174
iWiring provides systems and networks support for Mac OS X, unix, and
Open Source application technologies at affordable rates.
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