HP rp7405 HP-UX 11i v3 Dynamic nPartitions - Features and Configuration Recomm - Page 11

Illustrated example of online cell migration This example of using Dynamic nPartitions operations to migrate a cell from one partition to another features a server complex containing eight cells. The complex is partitioned with cells 0, 1, and 2 in nPartition 0. Cells 3, 4, 5, 6, and 7 are in nPartition 1. Each partition runs a separate instance of the HP-UX operating system. Figure 2 shows the initial configuration. Figure 2. HP-UX instance 0 HP-UX instance 1 nPartition 0 nPartition 1 cell 0 cell 1 cell 2 cell 3 cell 4 cell 5 cell 6 cell 7 base cell float cell float cell float cell base cell base cell base cell base cell If partition 0 is underutilized, or if partition 1 is running a higher priority workload, the system administrator might decide to migrate cell 2 from partition 0 to partition 1. Assuming that cell 2 does not have associated I/O, the migration sequence begins with the command parolrad -d 2 This command, entered in a terminal session on HP-UX instance 0, causes HP-UX to stop using all resources on cell 2, and it causes the cell to be reset. The new state of the complex is shown in Figure 3: 11