Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Hello Peter, > Finally a chance to try drbd 0.7.10 with kernel 2.6.11 :-) and already > have a question: Philipp recently wrote something about performance problems with 2.6.11, so we are still at 2.6.10-as. Maybe there are other problems as well? > > what is the expected behaviour if primary goes down, secondary takes > over (via "drbdadm primary <resource>") and old primary comes up again? AFAIK, both nodes should automatically connect and the modified data will be synced from the primary to the secondary. That is also working here fine. > > I observed that the new primary goes into StandAlone Primary/Unknown > state and stays there. On boot of the old primary the connection > is not made automatically, instead I have to do > "drbdadm connect <resource>" on the new primary to initiate the > partial sync. Why is it not possible to initiate the connection > on the old primary? Hmm, I guess you are using the debian start scripts? In the start part there should be $DRBDADM wait_con_int # User interruptible version of wait_connect all This should make the old primary to wait going on with the boot process until a connection is established. There should be something on the console. > > I would expect that on boot of the old primary the connection > is done automatically and initiated by the old primary. > How can I accomplish this? Would it be enough to just > do "drbdadm connect <resource>" right after "drbdadm primary <resource>" > even if the peer is not available? > This should't be neccessary at all. What does your logfiles say? Does it work if you manually do a /etc/init.d/drdb restart (in very rare case we also have to do this)? Rebooting shouldn't be neccessary to basically test the situation. Just stopping drbd on the master node, making the device primary on the failover and starting drbd on the master node should be sufficient. Cheers, Bernd -- Bernd Schubert Physikalisch Chemisches Institut / Theoretische Chemie Universität Heidelberg INF 229 69120 Heidelberg e-mail: bernd.schubert at pci.uni-heidelberg.de