HP Instant Capacity (iCAP) manual Unassigning a Cell from a Partition

Unassigning a Cell from a Partition

When a cell is unassigned from a partition in an Instant Capacity system, the number of intended active cores in the partition decreases only if the number of cores being removed with the cell is greater than the number of expected inactive cores in the partition. In Figure 4-5, Figure 4-6, and Figure 4-7showing a single partition system with 3 cells, the number of intended active cores remains the same because the number of cores with the removed cell (4) does not exceed the total number of expected inactive cores in the partition (6).

Figure 4-5 Partition premodification state: Three cells with 2 active and 2 inactive cores in each, and 6 expected inactive cores

Cell 1

Cell 2

Cell 3

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Figure 4-6 Partition postmodification state: Cell 3 is unassigned (total of 6 active cores remaining)

Cell 1

Cell 2

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Figure 4-7 Partition postmodification state: Unassigned Cell 3 with 4 inactive cores

Cell 3

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When Cell 3 is unassigned from the partition, the number of intended active cores for the partition remains at 6. When the partition is rebooted, a total of 6 cores are activated. Cell 3 becomes an unassigned cell with 4 inactive cores, essentially freeing up usage rights that are distributed among the remaining cells.

In Figure 4-8, Figure 4-9, and Figure 4-10, the number of cores removed (4) is greater than the number of expected inactive cores in the partition (3). When this happens, the number of intended active cores is automatically set to the total number of remaining cores in the partition (8).

Figure 4-8 Partition premodification state: Three cells with 3 active and 1 inactive cores in each, and 3 expected inactive cores

Cell 1

Cell 2

Cell 3

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Unassigning a Cell from a Partition 69