Description of the illustration mig_server3.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," a pentagon labeled "Managed Server 1 (Migratable)," a pentagon labeled "Managed Server 2 (Migratable)," and a database. Machine C contains an oval labeled "Node Manager" and a pentagon labeled "Managed Server 2 (Migratable)."

Arrows connect the parts as follows:

Arrow 1, "Initiate manual migration," points to the Administration Server.

The Administration Server points to the Node Manager on Machine C with arrow 2, "Contact NM." That Node Manager points to Managed Server 2. Managed Server 2 points to the Lease Table with arrow 4, "Give up lease." The Administration Server also points to the Node Manager on Machine 8 with arrow 5, "Contact NM." That Node Manager points to Managed Server 2 on Machine B with arrow 6, "Start MS2."

The Administration Server also points to Managed Server 2 on Machine B with arrow 7, "Obtain configuration." Managed Server 2 points to the database on Machine B with arrow 8, "Cache config." Managed Server 2 also points to the Lease Table with arrow 9, "Obtain Lease."

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."