Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
I currently have a particular cluster of servers that contain two nodes linked by DRBD in a Primary/Secondary type setup. An instance of MySQL is running on the primary node and is monitored by Linux-HA (Heartbeat). I am faced with the issue of needing to replace the current hard-drives with much larger ones and need to do this while keeping the MySQL instance available. My questions is, when I shut down the Secondary node (after disabling Heartbeat and shutting down DRBD) and replace the existing hard drives with larger ones, does anyone have any suggestions on how I reintroduce the box into the DRBD cluster (as a Secondary node), with these new/larger partitions? Will there will be any negative affect if I simply introduce the new secondary node with the larger partitions, have it take over the primary role, then take down the new Secondary node for the sam maintenance, or is this just wishful thinking? This is a simple task if I don't have to worry about keeping the MySQL instance up and running, but unfortunately, that is not the case. Any insight or advice would be greatly appreciated. Thanks, Clint