server0 <----> server1

cat /proc/drbd
version: 8.3.11 (api:88/proto:86-96)
srcversion: F937DCB2E5D83C6CCE4A6C9
 0: cs:WFConnection ro:Primary/Unknown ds:UpToDate/Outdated C r-----
    ns:4 nr:12 dw:16 dr:937 al:0 bm:2 lo:0 pe:0 ua:0 ap:0 ep:1 wo:f oos:0
 1: cs:WFConnection ro:Primary/Unknown ds:UpToDate/Inconsistent C r-----
    ns:10167368 nr:1357185492 dw:2024894776 dr:67769600 al:326677858 bm:1111517 lo:2 pe:0 ua:0 ap:1 ep:1 wo:f oos:305611780

resource r0 {

on server0 {
    device     /dev/drbd0;
    disk       /dev/fioa2;
    address    10.10.10.3:7788;
    meta-disk  /dev/fioa1[0];
}

on server1 {
    device     /dev/drbd0;
    disk       /dev/fioa2;
    address    10.10.10.4:7788;
    meta-disk  /dev/fioa1[0];
}
}

resource r1 {

device     /dev/drbd1;
disk       /dev/fiob2;
meta-disk  /dev/fiob1[0];

on server0 {
    address    10.10.10.3:7789;
}

on server1 {
    address    10.10.10.4:7789;
}
}