[DRBD-user] another please help ( DRBD cannot sync )

Amos Shapira amos.shapira at gmail.com
Fri Dec 14 03:46:08 CET 2007

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.


On 14/12/2007, David Hansel <hanselzen at gmail.com> wrote:
> Hi All,
>
> I'm trying to sync between 2 different version of drbd. In my debian
> box 1 drbd0.7 (Installed from apt-get install) and the other box i use
> drbd8.2.1. Primary node using drbd8.2.1.
>
> Evertime i try to start drbd in both box they cannot sync.
>
> = Box 1 drbd status =
> version: 8.0.3 (api:86/proto:86)
> SVN Revision: 2881 build by root at axsrnd2, 2007-12-13 16:42:30
>  0: cs:WFConnection st:Secondary/Unknown ds:UpToDate/DUnknown C r---
>     ns:0 nr:0 dw:0 dr:0 al:0 bm:0 lo:0 pe:0 ua:0 ap:0
>         resync: used:0/31 hits:0 misses:0 starving:0 dirty:0 changed:0
>         act_log: used:0/127 hits:0 misses:0 starving:0 dirty:0 changed:0
>
> = Box 2 drbd status =
> SVN Revision: 2020 build by root at axsrnd, 2007-12-13 04:55:50
>  0: cs:StandAlone st:Secondary/Unknown ld:Consistent
>     ns:0 nr:0 dw:0 dr:0 al:0 bm:0 lo:0 pe:0 ua:0 ap:0
>
> If i restart drbd service in box 2. cs status will become WFConnection
> and box 1 status become StandAlone.
>
> My drbd.conf
> resource db
> {
> protocol C;
> startup { wfc-timeout 0; degr-wfc-timeout 120; }
> disk { on-io-error detach; } # or panic, ...
> syncer {
> rate 5M;
> }
> on axsrnd2 {
> device /dev/drbd0;
> disk /dev/axsrnd/mysql;
> address 10.0.4.144:9999;
> #flexible-meta-disk /dev/system/drbdmeta-home;
> meta-disk internal;
> }
> on axsrnd {
> device /dev/drbd0;
> disk /dev/axsrnd/mysql;
> address 10.0.4.143:9999;
> #flexible-meta-disk /dev/axsrnd/drbdmeta-mysql;
> meta-disk internal;
> }
> }
>
>
> Another please help :)
> Thank you.

I'm not an expert but "WFConnection" means "Waiting For Connection". I
think that "StandAlong" means that it gave up on the other side but
not sure (and I lost the link to the web page which explained
/proc/drbd).

Two things I'd look at:

1. Firewall - make sure the hosts can talk to each other on TCP port
9999 (verify with tcpdump, maybe).
2. The IP address of axsrnd2 is 10.0.4.144 (i.e. the IP address you
include for each host is that of the host itself, not the other one),
right?

Cheers,

--Amos



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