Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Lars Ellenberg a écrit : > as you quoted above, and as Stefan Seifert pointed out, > the device _is_ usable right away. Thanks to Stefan and you for your answers. > especially in your case, what I'd do is: > unplug that external bay from one of the nodes. > attach some new storage to that node. > > configure drbd with external meta data to use the existing data on the > node that still sees it, make it primary there, and start your > services. > > then start drbd on the node with the newly attached storage, > and let it sync up. > > now, understand and configure heartbeat. In fact I can't preserve data: There is two servers connected to an external IBM bay (with 2 SCSI cables) and the bay is configured with only one partition. That means that both servers connects to the same bay partition (only the master mounts it) which is not supported by the bay and leads to data corruption if both servers access data on the same time (which occured several times in the past). The client asked advice to IBM and "discovered" that the architecture was clumsy. This is why we will have to backup data, add new disks to the bay, divide it into two partitions (one for each server) and then restore data. So each server will have a partition on the bay synced by DRBD. Christophe.