Description of the illustration mig_server2.gif

This graphic contains four boxes, labeled "Machine A," "Machine B," "Machine C," "Machine D," and a database labeled "Lease Table."

Machine A contains a pentagon labeled "Administration Server."

Machine B contains an oval labeled "Node Manager." and a pentagon labeled "Managed Server 1 (Migratable)." Machine C contains an oval labeled "Node Manager." and a pentagon labeled "Managed Server 2 (Migratable)." Machine C is crossed out. Machine D contains an oval labeled "Node Manager.," a pentagon labeled "Managed Server 2 (Migratable)," and a database.

Arrows connect the parts as follows:

Arrow 1, "Machine C fails," points to Machine C. The Lease Table points to Managed Server 1 with arrow 2, "Cluster Manager detects that MS2's lease is expired." Managed Server 1 points to Machine C with arrow 3, "Cluster Manager tries to contact NM." Managed Server 1 also points to the Node Manger on Machine D with arrow 4, "Cluster Master contacts NM."

The Node Manager on Machine D points to Managed Server 2 with arrow 5, Start MS2." Managed Server 2 points to the Lease Table with arrow 7, Obtain lease." Managed Server 2 also points to its associated database on Machine D with arrow 8, "Cache config."