HP rp7410 User's Guide download pdf (Page 25)

as the active core cell, or if no core cell choices are specified, the nPartition attempts to select an

eligible cell using a default process.

Active and Inactive Cells

Cells that are assigned to an nPartition and have booted to form an nPartition are active cells

whose resources (processors, memory, and any attached I/O) can be actively used by software

running in the nPartition.

Cells that are inactive either are not assigned to an nPartition, or they have not participated in

partition rendezvous to form an nPartition with any other cells assigned to the nPartition.

(Partition rendezvous is the point during the nPartition boot process when all available cells in

an nPartition join together to establish which cells are active for the current boot of the nPartition.)

For example, a cell is inactive when it is powered off, has booted with a "n" use-on-next-boot

value, or is assigned to an nPartition that has been reset to the shutdown for reconfig state.

The resources belonging to inactive cells are not actively used by an nPartition. For a cell and its

resources to be actively used the cell must boot and participate in partition rendezvous.

Cell Local Memory

On cell-based servers that are based on the HP sx1000 or sx2000 chipset, a portion of the memory

in each cell can be configured as cell local memory (CLM), which is non-interleaved memory

that can be quickly accessed by processors residing on the same cell as the memory.

CAUTION: Memory configured as cell local memory only can be used by operating systems

that support it.

Any memory configured as cell local memory is unusable when an nPartition runs an operating

system that does not support it.

The nPartition management tools enable you to configure CLM for each cell either as a percentage

of the total memory in the cell, or as an absolute number of gigabytes of memory.

For details about configuring CLM see Chapter 3 (page 61).

Cell Property Details

Each cell has various properties that determine how the cell can be used and managed.

To list the properties of cells in a server complex, you can use the parstatus -C command,

parstatus -V -c# command, or Partition Manager.

The parstatus -C command output includes cell property summaries such as the current

assignments, usage, and I/O details for all cells in the complex.

# parstatus -C

[Cell]

CPU Memory Use

OK/ (GB) Core On

Hardware Actual Deconf/ OK/ Cell Next Par

Location Usage Max Deconf Connected To Capable Boot Num

========== ============ ======= ========= =================== ======= ==== ===

cab0,cell0 active core 4/0/4 8.0/ 0.0 cab 0,bay0,chassis1 yes yes 0

cab0,cell1 active base 4/0/4 8.0/ 0.0 - no yes 0

cab0,cell2 active base 4/0/4 8.0/ 0.0 cab 0,bay1,chassis3 yes yes 0

cab0,cell3 absent - - - - - -

cab0,cell4 active core 2/0/4 4.0/ 0.0 cab 0,bay0,chassis3 yes yes 1

cab0,cell5 active base 2/0/4 4.0/ 0.0 - no yes 1

cab0,cell6 active base 2/0/4 4.0/ 0.0 cab 0,bay1,chassis1 yes yes 1

cab0,cell7 absent - - - - - -

nPartition Properties 25

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