Request for Cluster Recommendations
asporner at yahoo.com
Sun Apr 4 03:33:46 PDT 2004
I am going to presume you mean a compute cluster
(there are other types) based on the context of your
I work for a company that makes network switches and
we have seen best case where a server that is doing
for instance a firewall application can do a maximum
of about 30% of a gigabit. As this is more network
centric rather than compute centric, I would expect
that your utilitization would be lower than this.
For 4 nodes I would think a standard gigabit switch
would be enough. Managed allows you to have vlans,
which doesn't seem to be requisite in your
Additionally, haveing a separate network for the
other traffic seems more trouble than it's worth.
If you want reliability, and can find a bonding
ethernet driver, than I would suggest creating a
Adapter fault tolerance virtual adaptor and then
use 2 gigabit adapters on the server and send them
through two separate switches.
I have looked in the last months for such a driver
on Freebsd without luck. There was in times past
an FEC driver. But all reports show that it is
unstable. I have tried it anyways and can confirm
that it is in fact.. unstable. There is a one to
many configuration in netgraph that might however
As for the software, somebody else will have to
speak up. I only work on HA (and later Mosix) type
clustering for network application scalablity,
rather than compute farms.
I would suggest if Ronald Milch is still listening
that he would be the perfect answer man for your
needs as this is his strong area.
Best wishes for your project...
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