HP Instant Capacity User's Guide for Version 9.x

4.11 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 4-7 showing 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
AA
II
Cell 2
AA
II
Cell 3
AA
II
Figure 4-6 Partition postmodification state: Cell 3 is unassigned (total of 6 active cores remaining)
Cell 1
A AA
I
Cell 2
A AA
I
Figure 4-7 Partition postmodification state: Unassigned Cell 3 with 4 inactive cores
Cell 3
IIII
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
A AA
I
Cell 2
A AA
I
Cell 3
A AA
I
4.11 Unassigning a Cell from a Partition 67