Installing and Managing HP-UX Virtual Partitions (includes A.04.02)
Chapter 8
Version Comparisons
Transitioning from vPars A.03 to vPars A.04 (CPU Syntax and Rules)
229
adding by hw_path (-a cpu:
hw_path
)
• deletion requires deleting by hw_path
(-d cpu:
hw_path
)
• this does not adjust
total
• this does not adjust
min
• requires the partition to be down
adding by hw_path (-a cpu:
hw_path
)
• deletion requires deleting by hw_path (-d
cpu:
hw_path
)
• this does adjust
total
if the virtual partition is
up (unless the CPU is already assigned to the
partition); otherwise, if the virtual partition is
down, the number of CPUs assigned by hardware
path must be less than or equal to the current
total
• partition can be up or down
deleting by hw_path (-d cpu:hw_path)
• can only delete CPU added by hw_path
deleting by hw_path (-d cpu:hw_path)
• can delete any CPU (except the boot processor)
adding by cell
• not available in A.03
adding by cell (-a cell:
cell_ID
:cpu::
num
)
• requires deleting by either of the following:
— by cell (-d cell:
cell_ID
:cpu::
num
)
— by hw_path (-d cpu:
hw_path
)
boot processor
• not available in A.03
boot processor
• cannot be deleted while the virtual partition is
up
Note that the actual boot processor can change
across virtual partition reboots. Use the
vparstatus -v command to determine which
CPU is the current boot processor
vparstatus output when virtual partition
is down
• shows all bound CPUs assigned to the
partition
vparstatus output when virtual partition is down
• shows CPUs assigned by hardware path or cell
IO interrupts
• only bound CPUs can handle IO
interrupts
• intctl (interrupt control) applies to
only the bound CPUs
IO interrupts
• at boot: all CPUs can handle IO interrupts
• after boot:
— when CPUs are removed from a virtual
partition, the IO interrupts are automatically
reassigned to the other active CPUs
— when CPUs are added to a virtual partition,
the IO interrupts are not automatically
processed by the added CPUs
— intctl can be applied to all CPUs
Table 8-3 CPU Rules from A.03 -> A.04 (Continued)
vPars A.03 Rules => vPars A.04 Rules