[DRBD-user] drbd problem

[Dagia Dorjsuren]

Hello,

 I have configured node1 and node2 as primary and secondary. If node1 is crashed, how to mount /dev/drbd0? After node1 crashed, node2 can't run. Anybody help me pls?

after node1 crashed, I run below command on node2. But it was not run.

# cat /proc/drbd
version: 8.3.11 (api:88/proto:86-96)
srcversion: 71955441799F513ACA6DA60
 0: cs:WFConnection ro:Secondary/Unknown ds:Diskless/DUnknown C r-----
    ns:0 nr:0 dw:0 dr:0 al:0 bm:0 lo:0 pe:0 ua:0 ap:0 ep:1 wo:f oos:0

 mount /dev/drbd0 /srv/data
mount: block device /dev/drbd0 is write-protected, mounting read-only
mount: Wrong medium type




my drbd.conf is below

resource r0 {
        protocol C;

        handlers {
        pri-on-incon-degr "echo o > /proc/sysrq-trigger ; halt -f";
        pri-lost-after-sb "echo o > /proc/sysrq-trigger ; halt -f";
        local-io-error "echo o > /proc/sysrq-trigger ; halt -f";
        #outdate-peer "/usr/lib/heartbeat/drbd-peer-outdater -t 5";
        }

        startup {
        degr-wfc-timeout 120;
        }

        disk {
        on-io-error detach;
        }

        net {
        cram-hmac-alg sha1;
        shared-secret "sessecses";
        after-sb-0pri disconnect;
        after-sb-1pri disconnect;
        after-sb-2pri disconnect;
        rr-conflict disconnect;
        }

        syncer {
        rate 100M;
        verify-alg sha1;
        al-extents 257;
        }

        on node1 {
        device  /dev/drbd0;
        disk    /dev/sda5;
        address 10.10.10.1:7788;
        meta-disk internal;
        }

        on node2 {
        device  /dev/drbd0;
        disk    /dev/sda5;
        address 10.10.10.2:7788;
        meta-disk internal;
        }
}

Thanks,
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