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HP Instant Capacity User's Guide for versions B.07.x > Chapter 4 Using Instant Capacity to Manage Processing Capacity

Unassigning a Cell from a Partition

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When a cell is unassigned from a partition in a system with Instant Capacity, the number of intended active processors in the partition decreases only if the number of processors being removed with the cell is greater than the number of unlicensed processors in the partition. In the following example of a single partition system with 3 cells, the number of intended active processors remains the same because the number of processors with the removed cell (4) does not exceed the total number of unlicensed processors in the partition (6).

Table 4-4 Partition pre-modification state: Three cells with 2 active and 2 inactive processors in each (total of 6 active processors)

Cell 1Cell 2Cell 3
A A I IA A I IA A I I

 

Table 4-5 Partition post-modification state: Cell 3 is unassigned (total of 6 active remains)

Cell 1Cell 2
A A A IA A A I

 

Table 4-6 Partition post-modification state: Unassigned cell (Cell 3) with 4 unlicensed processors

Cell 3
U U U U

 

When Cell 3 is unassigned from the partition, the number of intended active processors for the partition remains at 6. When the partition is rebooted, a total of 6 processors are activated. Cell 3 becomes an unassigned cell, and in order to be in compliance, all 4 processors in Cell 3 are unlicensed (Instant Capacity) processors.

In the next example of unassigning a cell from a partition, the number of processors removed (4) is greater than the number of unlicensed processors in the partition (3). When this happens, the number of intended active processors is automatically set to the total number of remaining processors in the partition (8).

Table 4-7 Partition pre-modification state: Three cells with 3 active and 1 inactive processor in each (total of 9 active processors)

Cell 1Cell 2Cell 3
A A A IA A A IA A A I

 

Table 4-8 Partition post-modification state: Cell 3 is unassigned (total of 8 active is set)

Cell 1Cell 2
A A A AA A A A

 

Table 4-9 Post-modification state: Unassigned cell (Cell 3) with 4 unused processors. The system has one RTU processor license available.

Cell 3

Available System Licenses
U U U U

L

 

When Cell 3 is unassigned from the partition, the number of intended active processors is changed from 9 to 8 (because one licensed processor must be removed with the cell). When the partition is rebooted, a total of 8 processors are activated. Cell 3 becomes an unassigned cell with 4 unused processors and there is one (unused) processor license available for the complex.

NOTE: If your intent is to migrate a cell from one partition to another, you can control the number of licensed processors available to the cell by deactivating processors in the partition you removed the cell from. By deactivating processors, you are essentially freeing up processor licenses in the entire complex.
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