Active And Inactive Cells; Cell Local Memory; Cell Property Details - HP Rp7410 - Server - 0 MB RAM Administrator's Manual

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:
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

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]
Hardware Actual
Location Usage
========== ============ ======= ========= =================== ======= ==== ===
cab0,cell0 active core
cab0,cell1 active base
cab0,cell2 active base
cab0,cell3 absent
cab0,cell4 active core
cab0,cell5 active base
cab0,cell6 active base
cab0,cell7 absent
#
Memory configured as cell local memory only can be used by operating systems
CPU
OK/
Deconf/ OK/
Max
4/0/4
4/0/4
4/0/4
-
2/0/4
2/0/4
2/0/4
-
Chapter 3 (page 61).
Memory
(GB)
Deconf Connected To
8.0/ 0.0 cab 0,bay0,chassis1 yes
8.0/ 0.0 -
8.0/ 0.0 cab 0,bay1,chassis3 yes
- -
4.0/ 0.0 cab 0,bay0,chassis3 yes
4.0/ 0.0 -
4.0/ 0.0 cab 0,bay1,chassis1 yes
- -
Use
Core On
Cell Next Par
Capable Boot Num
yes 0
no yes 0
yes 0
- - -
yes 1
no yes 1
yes 1
- - -
nPartition Properties 25