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TimothyReaves@xxxxxxxxxxxxxxxx wrote:
>
> Hello all.
>
> I'm using SuSE 7.1 which has LVM
LVS
already installed. I've read LOTS of
> the documents, but unfortunately they are not easy to navigate, nor are
> they up to date or complete.
It's a reasonable assessment of the situation. I wrote a lot of it
and I can't find references to half of it myself.
It's what you get with people writing documentation in their spare time.
If we were getting paid for this, it would be as clear as microsoft's
documentation.
What I'm trying to do is setup the SuSE box
> to balance to 4 RS/6000's, with direct routing. I'm not sure this is
> possible,
should be nothing to it. None of us have an AIX box to test. If you
can setup an non-arp'ing device in AIX, you're in.
as ALL the documentation shows linux as the real servers OS for
> DR.
that's what most of us have.
>
> I have the following (I'm not using the config, because it did not
> come with my config, and I'm not sure it would help.
You could use it or you can do without. It would need another case statement
for AIX that's all.
> ipvsadm -A -t 10.200.200.96:7001 -s rr
> ipvsadm -a -t 10.200.200.96:7001 -t 10.200.200.153:7001
> ipvsadm -a -t 10.200.200.96:7001 -t 10.200.200.155:7001
>
> 96 is the linux machine, and 153 & 155 are AIX.
>
> This does not work; the request does not seem to leave 96 (they do not get
> to 153 or 155).
you have to setup the realservers too. I would assume that the director is
sending
on packets to the realservers with this setup, but the realservers aren't setup
properly
> Some of the documentation states that a virtual IP addresses is
> needed
for VS-DR, yes
> Could / would I add a virtual IP such
> as 172.16.1.1 to both the linux & AIX machines?
you have to.
One part of the document
> seemed to indicate I should do this, while turning off ARP for the virtual
> address and also making the broadcast the same as the IP.
yes, for VS-DR the VIP is a /32 address.
I believe it
> also showed the real server with a route added to the virtual IP. Is this
> correct?
I don't understand this.
If so, wouldn't the application need to listen on the virtual IP
> address?
yes
> Any help would be greatly appreciate. If I get it working, I promise
> to write a HOWTO :-}
If you want to send an addendum, we can put it in the docs with your name on it.
Joe
--
Joseph Mack PhD, Senior Systems Engineer, Lockheed Martin
contractor to the National Environmental Supercomputer Center,
mailto:mack.joseph@xxxxxxx ph# 919-541-0007, RTP, NC, USA
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