<div dir="ltr"><div><div><div><div>Thank you for the Prompt reply.<br></div>I have one more question.sorry it might be silly. but am wondering after noticed this.<br> I made that interface down <NO carrier> but how the ip address(Public) & VIP (IP resource) are still in primary node.<br></div>If i made interface down, public IP address also have to go down right?<br><br></div>Regards,<br></div><a href="http://pillai.bs">pillai.bs</a><br></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, May 3, 2017 at 7:34 PM, Ken Gaillot <span dir="ltr"><<a href="mailto:kgaillot@redhat.com" target="_blank">kgaillot@redhat.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="HOEnZb"><div class="h5">On 05/03/2017 02:43 AM, pillai bs wrote:<br>
> Hi Experts!!!<br>
><br>
> Am having two node setup for HA (Primary/Secondary) with<br>
> separate resources for Home/data/logs/Virtual IP.. As known the Expected<br>
> behavior should be , if Primary node went down, secondary has to take<br>
> in-charge (meaning initially the VIP will point the primary node, so<br>
> user can access home/data/logs from primary node.Once primary node went<br>
> down, the VIP/floatingIP will point the secondary node so that the user<br>
> can experienced uninterrupted service).<br>
> I'm using dual ring support to avoid split brain. I have<br>
> two interfaces (Public & Private).Intention for having private interface<br>
> is for Data Sync alone.<br>
><br>
> I have tested my setup in two different ways:<br>
> 1. Made primary Interface down (ifdown eth0), as expected VIP and other<br>
> resources moved from primary to secondary node.(VIP will not be<br>
> reachable from primary node)<br>
> 2. Made Primary Interface down (Physically unplugged the Ethernet<br>
> Cable). The primary node still retain the resources, VIP/FloatingIP was<br>
> reachable from primary node.<br>
><br>
> Is my testing correct?? how come the VIP will be reachable even though<br>
> eth0 was down. Please advice!!!<br>
><br>
> Regards,<br>
> Madhan.B<br>
<br>
</div></div>Sorry, didn't see this message before replying to the other one :)<br>
<br>
The IP resource is successful if the IP is up *on that host*. It doesn't<br>
check that the IP is reachable from any other site. Similarly,<br>
filesystem resources just make sure that the filesystem can be mounted<br>
on the host. So, unplugging the Ethernet won't necessarily make those<br>
resources fail.<br>
<br>
Take a look at the ocf:pacemaker:ping resource for a way to ensure that<br>
the primary host has connectivity to the outside world. Also, be sure<br>
you have fencing configured, so that the surviving node can kill a node<br>
that is completely cut off or unresponsive.<br>
<div class="HOEnZb"><div class="h5"><br>
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