This is step 4 of the create nPartition
wizard. In this step you specify how the memory in the
nPartition's cells should be
allocated between interleaved memory and cell
local memory (CLM).
In this step you also specify whether Hyper-Threading
is enabled for the nPartition, if its cells have processors that support Hyper-Threading.
For an overview of the entire create nPartition wizard, refer
to the parent help topic, create
nPartition.
For a guide to nPartition configuration
requirements and recommendations, refer to the configuration guide.
Memory Configuration Options
The Available Memory table shows the total
memory and bootable memory in the nPartition.
Table 1 Available Memory Total Memory from Base Cells (GB) |
The total amount of memory configured on all of the
cells
in the nPartition.
| Available Memory on Next Boot (GB) |
The total amount of memory configured on all of the
cells
that are configured to boot in the nPartition
(the “Use On Next Boot” flag is
set to “Yes”).
| Min. Interleave Required by HP-UX (GB) | Only Displayed for PA-RISC nPartitions.
For an explanation of this value, refer to the HP-UX requires ... message
explained below.
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The following fields are provided for configuring the memory in this nPartition.
Table 2 Cell Local Memory (CLM) Allocations Hardware Location |
The physical location of the cell (cabinet and
cell slot). To examine the details of this cell, you can click on the
value in this field.
A new browser window will display the cell
properties view. This shows the same information
as the cell scope views.
Inside this new browser window, you can switch between the
General, CPUs and Memory, and I/O tabs, but you cannot navigate
outside the cell scope. Close the new browser window when you
have finished examining the cell properties.
| Cell Type |
Always set to Base.
Other cell types may be introduced in future releases.
| Use On Next Boot |
When this field is set to “No”,
the cell will be inactive
the next time the nPartition is booted.
The memory on cells with this flag set to
“No”
will not be counted in the Available On Next Boot total
at the bottom of this table, or in the Available Memory on Next Boot
field in the Available Memory table
above.
| Total Memory OK (GB) |
The total amount of memory configured for use on the cell, in gigabytes.
| Requested CLM |
The amount of cell memory that should be requested as CLM. This value
can be entered in one of two ways.
Fraction:
Select a fraction of the total amount of memory available. The
drop-down list is in increments of
“1/4 (25%)” for cells with less
than 4 GB capacity, or “1/8 (12.5%)”
for cells with 4 GB capacity or more.
Fixed:
Enter the actual amount of memory to be used as CLM. The value that
you specify will be rounded to the nearest 0.5 GB. If you enter
an amount greater than the total amount of memory available, it will
be rounded down to the total amount available.
| Requested Interleave (GB) |
The amount of cell memory that was requested as interleaved memory, in
gigabytes. This is the Total Memory OK minus the
Requested CLM.
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Enable Hyper-Threading
To enable Hyper-Threading for an nPartition
whose processors support it, select the Enable Hyper-Threading check box.
This check box is displayed only for nPartitions with
processors whose
cores support multiple
parallel execution streams (such as dual-core Intel® Itanium® 2 processors).
Enabled means that Hyper-Threading will be
active on the next reboot of the nPartition.
Active means that each processor core in
the nPartition is simultaneously running multiple threads.
Complete This Step
The buttons at the bottom of the page are used to move through
the steps of the wizard.
- [< Back]
Go back to the previous step.
You can keep clicking [< Back] until you return to
the start of the wizard, or resume from any previous step.
Once you go back to a previous step, any steps ahead of that
will need to be completed again, in the proper sequence.
- [Next >]
Accept the information provided in this step, and proceed to the
next step. From there, you can use the [< Back] button to
return to this step, if you decide to change the information
entered here.
- [Cancel]
Exit this wizard without completing this step or any further
steps. Any information provided so far will be discarded.
- [Help]
Display help on this step of the wizard, using a new browser window.
Messages
When you click [Next >], one or more of the following messages may be
displayed.
HP-UX requires at least ... GB of
interleaved memory to boot in a PA-RISC nPartition with
... GB of total memory. Reduce
the amount of CLM configured on cells in this
partition to increase the amount of interleaved memory.
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HP-UX cannot boot on a PA-RISC nPartition without a minimum amount of
interleaved memory. The minimum required is based on the total memory installed
on the cells that are configured to boot in the nPartition.
As an example, an nPartition consisting of a single cell with
2.0 GB of memory cannot have any cell local memory configured.
Any nPartition with 16 GB or less of total bootable memory will
require 2.0 GB of interleaved memory in order to boot HP-UX.
You will not be able to boot HP-UX on this nPartition as configured.
You will have to increase the amount of interleaved memory to
the minimum required (or higher) by reducing the amount of CLM.
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The amount of interleaved memory, along with the number of base cells in
this nPartition, will not yield an optimal interleaved memory
configuration. The rules for an optimal interleaved memory configuration
are:
...
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The performance of memory interleave on this nPartition can be improved by
following the rules displayed in the message. Depending on the
configuration of your server and the number of desired nPartitions, it may
not be possible to provide each nPartition with an optimal interleave. For
more information, refer to the configuration
guide.
Click [OK] to keep this memory configuration and continue
with the next step of the create nPartition wizard.
Click [Cancel] to return to this step and change the memory
configuration.
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System firmware requires this nPartition have at least 0.5 GB of
interleaved memory. If you continue, system firmware will adjust the
actual memory configuration to reserve the required minimum amount of
interleaved memory when the nPartition is booted.
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Click [OK] to continue. The memory configuration that you specified
will be changed when the nPartition is booted, in order to provide the
minimum amount of interleaved memory required by system
firmware.
Click [Cancel] to return to this step and change the memory
configuration.
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