Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Jason Gray schrieb: > I'm looking at creating a multi-clustered array server network for our > production environment. Is it possible to have 5,6,7..n servers clustered > together (kind of like a token ring) to act as redundant arrays for each > other? DRBD is a two node cluster. You can have something like this: Node1 Node2 Node3 ----- ----- ----- drbd1 Primary Secondary drbd2 Secondary Primary drbd3 Primary Secondary drbd4 Secondary Primary > So, instead of having a Primary array I would have 5,6 or 7 "Primary" arrays > that mirror each other across an isolated network (10.0.0.0 say). Not each to each. You can build a "chain": Situation 1: Node1 Node2 Node3 ----- ----- ----- drbd1 Primary Secondary stopped Then switch to Situation 2: Node1 Node2 Node3 ----- ----- ----- drbd1 stopped Primary Secondary This sort of switchover will take time, because Node3 needs to sync with Node2. In case of a full sync of e.g. 100 GB this will need _hours_. Helmut Wollmersdorfer