[DRBD-user] Configuring a two-node cluster with redundant nics on each node?

[Adi Pircalabu]

On 2018-10-18 04:07, Bryan K. Walton wrote:
> Hi,
> 
> I'm trying to configure a two-node cluster, where each node has
> dedicated redundant nics:
> 
> storage node 1 has two private IPs:
> 10.40.1.3
> 10.40.2.2
> 
> storage node 2 has two private IPs:
> 10.40.1.2
> 10.40.2.3
> 
> I'd like to configure the resource so that the nodes have two possible
> paths to the other node.  I've tried this:
> 
> resource r0 {
> 	on storage1 {
> 		device    /dev/drbd1;
> 		disk      /dev/mapper/centos_storage1-storage;
> 		address   10.40.2.2:7789;
> 		address   10.40.1.3:7789;
> 		meta-disk internal;
> 	}
> 	on storage2 {
> 		device    /dev/drbd1;
> 		disk /dev/mapper/centos_storage2-storage;
> 		address   10.40.1.2:7789;
> 		address   10.40.2.3:7789;
> 		meta-disk internal;
> 	}
> }
> 
> But this doesn't work.  When I try to create the device metadata, I get
> the following error:
> 
> drbd.d/r0.res:6: conflicting use of address statement
> 'r0:storage1:address' ...
> drbd.d/r0.res:5: address statement 'r0:storage1:address' first used
> here.
> 
> Clearly, my configuration won't work.  Is there a way to accomplish 
> what
> I'd like to accomplish?

Why aren't you using Ethernet bonding?

-- 
Adi Pircalabu