HP Superdome 2 Partitioning Administrator Guide (5900-2540, December 2012)

# vparstatus -N 1
# shutdown -h
3. After the virtual partition is in the down state, remove the virtual partition vPar0001:
vparremove -N nPar0001 -p vPar0001 -f
CAUTION: Involuntary use of this command leads to unforeseen consequences. Therefore, you
must confirm the operation with the -f (force) option.
Managing: Modifying Virtual Partitions online
With the update of Dynamic Cores, the Superdome 2 supports the resizing of both vPars v5 and
nPars without rebooting the system. You can resize the partitions with the existing command
interfaces, but it is limited to changing the number of active cores in a running partition, not the
quantity of memory or I/O layout.
NOTE: The partition must be up and running HP-UX. The partitions which are at EFI cannot be
modified.
The other features of Dynamic Cores are:
• Moving the cores between the running vPars for load balancing.
• Moving the Right to Use (RTU) licenses between the running nPars or vPars on a complex with
iCAP cores or between complexes in a Global iCAP (GiCAP) group.
• Support for full Dynamic Processor Resiliency (DPR) – If a core in a vPar or nPar suffers a
deconfiguration, the system will deactivate the unhealthy core and attempt to activate a healthy
iCAP core (subject to availability of free iCAP cores). This help ensures that the vPars do not
suffer in performance due to a reduction in compute resources arising out of a deconfigured
core.
• LORA – With the Dynamic Cores release, firmware now supports core assignments to vPars
in a LORA aware manner. This means that the system will attempt to assign cores with minimal
distance from any locality memory in the vPar. This help ensures better performance due to
the proximity of cores to the socket local memory. This is true both at vPar activation and also
during online core addition.
Modifying the number of active cores in Virtual Partitions
The number of active cores are moved among the vPars to manage the load. The active cores can
also be used on systems purchased with Instant Capacity (iCAP) cores when purchasing additional
usage rights (RTUs) or using temporary iCAP (TiCAP).
NOTE: You cannot add and delete cores on the same command line when a vPar is UP.
The vparstatus command helps you to identify the resources which exist in the nPartition and
are not assigned to any vPar and also the resources that are in use in any given vPar.
vparstatus -N1 -A
[Available CPUs]: 15
[CPUs (path)]: 1/5/0/1
1/5/0/2
1/5/0/3
1/5/1/0
1/5/1/1
1/5/1/2
1/5/1/3
2/5/0/0
2/5/0/1
2/5/0/2
2/5/0/3
2/5/1/0
106 Managing and Booting Virtual Partitions