[DRBD-user] Uncatchable DRBD out-of-sync issue

Stanislav German-Evtushenko ginermail at gmail.com
Wed Mar 27 20:22:31 CET 2013

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

I am still trying to catch the bug.

Since I have disabled tx and tx checksumming offload two checks went
well but the third one found one block out-of-sync again. Block
includes 8 sectors for 512 bytes each but in fact only three of are

status of content
0 - same
1 - same
2 - same
3 - same
4 - same
5 - partially same (276 bytes same and then different)
6 - different
7 - different

Content of node1 (I guess this is a source node for the unsynced
block, and I think this is a Ubuntu 10.04, ext3)
sectors 0,1,2,3,4 - same as node2
5 - 276 bytes are the same and then zeros
6 - zeros
7 - zeros

Content of node2 (I guess this is a destination node for the unsynced block)
sectors 0,1,2,3,4 - same as node1
5 - 276 bytes are the same and then some data (not zeros)
6 - some data
7 - some data

I don't think it can help somehow but I still have no idea what can I do so far.

Best regards,

More information about the drbd-user mailing list