The Split-Brain Problem
Originally written by
- What happens if the network connectivity between the active-node and
passive node is down?
- The active-node still works, the passive node will try to take over the
resources, and we'll have two active nodes, corrupting the data on the
- To solve this, clusters use I/O fencing.
- One common method of fencing, is using SCSI reservation. Another common
method is STONITH.