[DRBD-user] Cannot synchronize stacked device to backup server with DRBD9

Robert Altnoeder robert.altnoeder at linbit.com
Wed Jun 13 11:58:57 CEST 2018


On 06/12/2018 10:18 AM, Artur Kaszuba wrote:
> Im trying to create stacked device with drbd9

The idea behind DRBD 9.x is that you don't need a stacked device,
instead you can just connect all 3 nodes directly:

resource system-test
{
    net
    {
        cram-hmac-alg   sha256;
        shared-secret   "some_password";
    }
    volume 0
    {
        device      minor 113;
        disk        /dev/vg_ssd/drbd-system-test;
        meta-disk   internal;
       
    }
    on z1
    {
        node-id     0;
        address     x.x.x.x:portnr;
    }
    on z2
    {
        node-id     1;
        address     x.x.x.x:portnr;
    }
    on z3
    {
        node-id     2;
        address     x.x.x.x:portnr;
    }
    connection
    {
        net
        {
            protocol C;
        }
        host z1;
        host z2;
    }
    connection
    {
        net
        {
            protocol A;
        }
        host z2;
        host z3;
    }
    connection
    {
        net
        {
            protocol A;
        }
        host z1;
        host z3;
    }
}

> IMO it not support correctly stacked devices.

See above, stacking has been replaced with direct connections.

Best regards,
-- 
Robert Altnoeder
+43 1 817 82 92 0
robert.altnoeder at linbit.com

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