Thanks Kent, that's much easier than blowing the interfaces away. I'll
give it a try and see how it works.
Kent Peacock wrote:
Elliott Peeler wrote On 10/04/07 13:19,:
Hello all,
Due to the unexpected expansion of our deployment, I find myself in the
following situation.
I'm using a two server FOG with directly connected dedicate interconnect
for the DTUs. I configured DHCP services across to the two servers in
the FOG to service a single class C subnet. The address space was
divided into 119 addresses so that each server would be able to deliver
DHCP services to my 100 or so DTUs should the other server go down.
Obviously, this limits me to 119 DTU's per FOG and now we're looking at
moving beyond that number.
I'm looking for advice on the best way to reconfigure the DHCP
parameters on each server in the FOG to minimize the amount of work/down
time. I'd like to be able to support 250 DTUs max with this FOG.
Would I need to do a utadm -d on the interconnect interfaces and just
start from scratch putting a private class B subnet on them? Will this
kill users sessions or will they still be there once I get the
interconnect interfaces back up and serving DTUs again.
Is this Solaris or Linux? I'll assume Solaris. Since it's a private
interconnect, you should be able to combine an adjacent class C to your
existing network to make a /23 network. Assuming that you used utadm -a,
you could just manually edit the /etc/netmasks file and change the
netmask from 255.255.255.0 to 255.255.254.0. That will give you another
256 addresses to play with, and you should be able to manually add those
to each server using pntadm or dhcpmgr. Unless you're confident that you
can do the ifconfigs manually to change the netmasks on the interfaces,
you might want to reboot.
I haven't tried this, and there might be some things I've forgotten, but
this is what I'd do.
Kent
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