[DRBD-user] bonding driver

Alan Robertson alanr at unix.sh
Sat Feb 21 19:00:23 CET 2004

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

Philipp Reisner wrote:
> Am Mittwoch, 4. Februar 2004 21:45 schrieb Ward Horner:
>>Has anyone ever used DRBD with the linux Bonding driver?
>>(/usr/src/linux-2.4/Documentation/networking/bonding.txt).I'm getting
>>somewhat strange results. For some reason, the primary node comes up as a
>>secondary and the secondary node comes up as the primary (ie the secondary
>>node serves the DRBD disk).
>>Normally when a primary node fails and the secondary node takes over, when
>>the primary node comes back on-line, it automatically takes back control
>>from the secondary node. This automatic take-over does not occur when using
>>the bonding driver. Fail over to the backup server works fine, but it never
>>changes back when the failed node comes back on-line.
>>When I remove the bonding driver from the system, then DRBD again works as
> Failovers/failbacks/switchovers are heatbeat's business.

For versions < 1.2.0, make sure you have nice_failback on
For versions >= 1.2.0, make sure you have auto_failback off

     Alan Robertson <alanr at unix.sh>

"Openness is the foundation and preservative of friendship...  Let me 
claim from you at all times your undisguised opinions." - William 

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