[DRBD-user] Request about gis

Michael Schwartzkopff misch at multinet.de
Wed Dec 16 14:17:38 CET 2009

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


Am Mittwoch, 16. Dezember 2009 13:32:35 schrieb Michael Schwartzkopff:
> Hi,
>
> I read about the gis in  http://www.drbd.org/docs/more and I did not find
> exactly the answer to my problem:
>
> I have to nodes and somebody (not me!) pulled the connection betweeen both
> nodes. I have a resource r0. The gis of the both nodes A and B are:
>
> On A:
> 63678445E843CFAE:0000000000000000:8F1D3DACC1B146D6:653C6F9D3EA0C1E7:1:1:1:0
>:0:0
>
> On B:
> 529517DB7A6B1F01:63678445E843CFAE:8F1D3DACC1B146D6:653C6F9D3EA0C1E7:1:1:1:0
>:0:0
>
> In this case I expect a full sync from B to A if I connect both nodes
> again. Is this correct?
>
> The next resource has the following gis:
>
> On node A:
> 8CEE141BCEC19430:0000000000000000:BD100C642C53F3D0:97C5BEF0622ABACE:1:1:0:0
>:0:0
>
> On node B:
> 439629C26573E473:8CEE141BCEC19431:BD100C642C53F3D0:97C5BEF0622ABACE:1:1:1:0
>:0:0
>
> Please note that the bitmaps differ exactly by "1".
>
> Can anybody explain me what would happen here, if I connect both DRBDs
> again? Thanks.
>
> Greetings,


Answer from the IRC:

Case 1) Sync from node B to node A.
Case 2) Same. The difference only show which was primary before (here: B).

Thanks!

-- 
Dr. Michael Schwartzkopff
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