I am trying to setup DRBD by following the article at

http://www.howtoforge.com/setting-up-network-raid1-with-drbd-on-ubuntu-11.10-p2

I am using Ubuntu 10.04 DRBD - 8.3.11

In the first run I had everything working perfectly and when shifting the systems to a production environment I decided to restart the Meta Data creation part and start from scratch. The IPs had changed entirely in the production environment.

Issuing drdbadm create-md r0 in both the servers runs successfully. But when I do "drbdadm -- --overwrite-data-of-peer primary all" on the primary it fails to start the re sync.

My config file is as given below

resource r0 {
 protocol C;
 syncer {
     rate 50M;
 }
 startup {
     wfc-timeout 15;
     degr-wfc-timeout 60;
 }
 net {
     cram-hmac-alg sha1;
     shared-secret "aklsadkjlhdbskjndsf8738734jkfkjfkjf";
 }
 on primaryds {
     device /dev/drbd0;
     disk /dev/md2;
     address 172.16.7.1:7788;
     meta-disk internal;
 }
 on secondaryds {
     device /dev/drbd0;
     disk /dev/md2;
     address 172.16.7.3:7788;
     meta-disk internal;
 }

}

Status on primary

root at primaryds:~# cat /proc/drbd
version: 8.3.7 (api:88/proto:86-91)
GIT-hash: ea9e28dbff98e331a62bcbcc63a6135808fe2917 build by 

root at primaryds, 2012-05-12 15:08:01
0: cs:WFBitMapS ro:Primary/Secondary ds:UpToDate/Inconsistent C r----
ns:0 nr:0 dw:0 dr:200 al:0 bm:0 lo:0 pe:0 ua:0 ap:0 ep:1 wo:b 
oos:5690352828

Status on secondary

root at secondaryds:/etc/drbd.d# cat /proc/drbd
version: 8.3.7 (api:88/proto:86-91)
GIT-hash: ea9e28dbff98e331a62bcbcc63a6135808fe2917 build by 
root at secondaryds, 2012-05-12 15:25:25
0: cs:WFBitMapT ro:Secondary/Primary ds:Inconsistent/UpToDate 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:b 
oos:5690352828

Log of Primary

May 30 13:42:23 primaryds kernel: [ 1584.057076] block drbd0: role( 
Secondary -> Primary ) disk( Inconsistent -> UpToDate )
May 30 13:42:23 primaryds kernel: [ 1584.086264] block drbd0: Forced to 
consider local data as UpToDate!
May 30 13:42:23 primaryds kernel: [ 1584.086303] block drbd0: Creating 
new current UUID
May 30 13:42:26 primaryds kernel: [ 1586.405551] block drbd0: 
drbd_sync_handshake:
May 30 13:42:26 primaryds kernel: [ 1586.405564] block drbd0: self 
E8A075F378173D4B:0000000000000004:0000000000000000:0000000000000000 
bits:1422588207 flags:0
May 30 13:42:26 primaryds kernel: [ 1586.405574] block drbd0: peer 
0000000000000004:0000000000000000:0000000000000000:0000000000000000 
bits:1422588207 flags:0
May 30 13:42:26 primaryds kernel: [ 1586.405582] block drbd0: 
uuid_compare()=2 by rule 30
May 30 13:42:26 primaryds kernel: [ 1586.405587] block drbd0: Becoming 
sync source due to disk states.
May 30 13:42:26 primaryds kernel: [ 1586.405592] block drbd0: Writing 
the whole bitmap, full sync required after drbd_sync_handshake.
May 30 13:42:27 primaryds kernel: [ 1588.171638] block drbd0: 5427 GB 
(1422588207 bits) marked out-of-sync by on disk bit-map.
May 30 13:42:27 primaryds kernel: [ 1588.172769] block drbd0: conn( 
Connected -> WFBitMapS )

Log in Secondary

May 30 13:42:24 secondaryds kernel: [ 1563.304894] block drbd0: peer( Secondary -> Primary ) pdsk( Inconsistent -> UpToDate ) May 30 13:42:24 secondaryds kernel: [ 1563.339674] block drbd0: drbd_sync_handshake: May 30 13:42:24 secondaryds kernel: [ 1563.339685] block drbd0: self 0000000000000004:0000000000000000:0000000000000000:0000000000000000 bits:1422588207 flags:0 May 30 13:42:24 secondaryds kernel: [ 1563.339695] block drbd0: peer E8A075F378173D4B:0000000000000004:0000000000000000:0000000000000000 bits:1422588207 flags:0 May 30 13:42:24 secondaryds kernel: [ 1563.339703] block drbd0: uuid_compare()=-2 by rule 20 May 30 13:42:24 secondaryds kernel: [ 1563.339709] block drbd0: Becoming sync target due to disk states. May 30 13:42:24 secondaryds kernel: [ 1563.339714] block drbd0: Writing the whole bitmap, full sync required after drbd_sync_handshake. May 30 13:42:26 secondaryds kernel: [ 1565.652342] block drbd0: 5427 GB (1422588207 bits) marked out-of-sync by on disk bit-map. May 30 13:42:26 secondaryds kernel: [ 1565.652965] block drbd0: conn( Connected -> WFBitMapT )

The serves are not responding once it reaches this stage. Tried redoing it couple of time but noting happens.

Why could the resync not be taking place? I would like some advice? Directions?