[Linux-cluster] Basic Active Active File Server

[Kit Gerrits]

Keep in mind that multicast requires a multicast router to handle the
traffic.
Mere Layer2 connectivity is not enough.

If broadcast does work, that might be your problem.

Kit 

-----Original Message-----
From: linux-cluster-bounces at redhat.com
[mailto:linux-cluster-bounces at redhat.com] On Behalf Of Jason Fitzpatrick
Sent: maandag 21 juni 2010 18:14
To: linux clustering
Subject: Re: [Linux-cluster] Basic Active Active File Server

Hi..

I have tried both multicast and broadcast to no avail, as above I am moving
the systems to the same ESX to try and rule out the networking end of
things, I have not tried the tcpdump but was running wireshark in an attempt
to do the same as you recommended

Jay

On 21 June 2010 16:49, Kaloyan Kovachev <kkovachev at varna.net> wrote:
> Hi,
> On Mon, 21 Jun 2010 16:07:34 +0100, Jason Fitzpatrick 
> <jayfitzpatrick at gmail.com> wrote:
>> Hi all
>>
>> I am having no end of trouble getting a basic Active Active Cluster 
>> working. at the moment it is in test / proof of concept and has 
>> manual fencing in place but I cannot for the life of me get the 2 
>> nodes to join to the one cluster (they both report joined in crm_tool 
>> status but only to a local clustered instance if that makes any 
>> sence)
>>
>> I have tried to use luci and system-config-cluster to get this up and 
>> running and have been at it over a week, the network guys swear that 
>> there is nothing blocking multicast traffic between them and the 
>> firewalls have been disabled (they are on the same VLAN but connected 
>> to different switches) servers have been rebuilt and have RHEL 5.5 
>> installed
>>
>
> your problem is the multicast traffic - check with tcpdump if it is 
> comming to the other server at all (network) and if it is, then 
> doublecheck the firewall.
> alternatively you may try using broadcast instead of multicast
>
>> Shared Storage is being provided by an Active Active DRBD setup 
>> (tested and working)
>>
>> I have attached a copy of my cluster.conf
>>
>> Thanks in advance
>>
>> Jay
>>
>> --
>>
>> "The only difference between saints and sinners is that every saint 
>> has a past while every sinner has a future. "
>> - Oscar Wilde
>
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-- 

"The only difference between saints and sinners is that every saint has a
past while every sinner has a future. "
- Oscar Wilde

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